private static void RunAQuery(object o)
        {
            ParallelQueryThreadInfo info = null;

            try
            {
                info = (ParallelQueryThreadInfo)o;
                Microsoft.AnalysisServices.AdomdClient.AdomdConnection conn = new Microsoft.AnalysisServices.AdomdClient.AdomdConnection(info.connectionString);
                conn.Open();
                try
                {
                    CellSet queryCellset;
                    Microsoft.AnalysisServices.AdomdClient.AdomdCommand queryCommand = new Microsoft.AnalysisServices.AdomdClient.AdomdCommand();
                    queryCommand.CommandText = info.query;
                    queryCommand.Connection  = conn;
                    queryCellset             = queryCommand.ExecuteCellSet();
                    info.returnValue         = queryCellset[0].Value.ToString();
                }
                finally
                {
                    conn.Close();
                }
            }
            catch (Exception ex)
            {
                info.ex = ex;
            }
            finally
            {
                info.autoEvent.Set();
            }
        }
        public static void ExecutePrepare(string connectionString, string commandText)
        {
            #region Argument exceptions

            if (commandText == null)
            {
                throw new ArgumentNullException("commandText");
            }
            if (connectionString == null)
            {
                throw new ArgumentNullException("connectionString");
            }

            #endregion

            using (var connection = new AdomdClient.AdomdConnection(connectionString))
            {
                connection.Open();

                using (var command = connection.CreateCommand())
                {
                    command.CommandTimeout = DefaultTimeout;
                    command.CommandType    = CommandType.Text;
                    command.CommandText    = commandText;
                    command.Prepare();
                }
            }
        }
Пример #3
0
        public AdomdClient.AdomdConnection GetAnalyzeConnection()
        {
#if ASQASSAS11 || ASQASSAS12
            if (_currentConnectionID != null)
            {
                throw new ApplicationException("Connection already created");
            }

            var connection = new AdomdClient.AdomdConnection(ConnectionString);
            {
                connection.Open();
                connection.Disposed += (s, e) => _currentConnectionID = null;

                var connectionId = AdomdClientHelper.ExecuteScalar(ConnectionString, CommandDiscoverSessionConnectionId.FormatWith(connection.SessionID));
                if (connectionId == null)
                {
                    throw new ApplicationException("session_connection_id is null");
                }

                _currentConnectionID = Convert.ToString(connectionId);
            }
#else
            var connection = new AdomdClient.AdomdConnection(ConnectionString);
            {
                connection.Open();
            }
#endif
            return(connection);
        }
        public static object GetDBVal(string dbName)
        {
            object  returnValue;
            string  measuresText   = "";
            string  dimensionsText = "";
            Boolean addcomma       = false;

            foreach (AMDS.Dimension d in Context.CurrentCube.Dimensions)
            {
                foreach (AMDS.Hierarchy h in d.AttributeHierarchies)
                {
                    if (d.DimensionType == DimensionTypeEnum.Measure)
                    {
                        measuresText = h.CurrentMember.UniqueName;
                    }
                    else
                    //eliminate comparison dimension from the query
                    if ((h.CurrentMember.UniqueName != h.DefaultMember) && (!h.CurrentMember.UniqueName.Contains("[Comparison Operations]")))
                    {
                        if (addcomma == false)
                        {
                            addcomma = true;
                        }
                        else
                        {
                            dimensionsText += ",";
                        }

                        dimensionsText += h.CurrentMember.UniqueName;
                    }
                }
            }
            //if all the dimensions in default members do not compose where clause of the query
            if (dimensionsText != "")
            {
                dimensionsText = " where (" + dimensionsText + ")";
            }

            string query = " select " + measuresText + " on 0 from [" + Context.CurrentCube.Name + "] " + dimensionsText;

            Microsoft.AnalysisServices.AdomdClient.AdomdConnection conn = new Microsoft.AnalysisServices.AdomdClient.AdomdConnection("Data Source=" + Context.Server.Name + ";Catalog=" + dbName);
            conn.Open();
            try
            {
                AMDC.CellSet queryCellset;
                Microsoft.AnalysisServices.AdomdClient.AdomdCommand queryCommand = new Microsoft.AnalysisServices.AdomdClient.AdomdCommand();
                queryCommand.CommandText = query;
                queryCommand.Connection  = conn;
                queryCellset             = queryCommand.ExecuteCellSet();
                returnValue = queryCellset[0].Value;
            }
            finally
            {
                conn.Close();
            }
            return(returnValue);
        }
Пример #5
0
        /*
         * Return results from query
         */
        public AdomdDataReader GetQueryResult(string sQuery)
        {
            try
            {
                string sConnString = "Data Source=" + sServer + "; Initial Catalog=" + sCatalog;
                Microsoft.AnalysisServices.AdomdClient.AdomdConnection objConn = new Microsoft.AnalysisServices.AdomdClient.AdomdConnection(sConnString);
                objConn.Open();
                Microsoft.AnalysisServices.AdomdClient.AdomdCommand objCmd = objConn.CreateCommand();
                objCmd.CommandText = sQuery;

                //Microsoft.AnalysisServices.AdomdClient.AdomdDataReader objReader = objCmd.ExecuteReader();
                //Microsoft.AnalysisServices.AdomdClient.AdomdDataAdapter objDataAdaptor = new Microsoft.AnalysisServices.AdomdClient.AdomdDataAdapter(objCmd);

                Microsoft.AnalysisServices.AdomdClient.AdomdDataReader objDataReader = objCmd.ExecuteReader(CommandBehavior.CloseConnection);

                /*
                 * try
                 * {
                 *  for (int i = 0; i < objDataReader.FieldCount; i++)
                 *  {
                 *      Console.Write(objDataReader.GetName(i) + "\t");
                 *  }
                 *  Console.WriteLine();
                 *  while (objDataReader.Read())
                 *  {
                 *      for (int i = 0; i < objDataReader.FieldCount; i++)
                 *      {
                 *          object value = objDataReader.GetValue(i);
                 *          string strValue = (value == null) ?
                 *          string.Empty : value.ToString();
                 *          Console.Write(strValue + "\t");
                 *      }
                 *      Console.WriteLine();
                 *  }
                 * }
                 * finally
                 * {
                 *  objDataReader.Close();
                 * }
                 */

                return(objDataReader);
            }
            catch (Exception e)
            {
                Console.WriteLine(e.StackTrace);
            }

            return(null);
        }
 public void Open()
 {
     if (_type == AdomdType.AnalysisServices)
     {
         _conn.Open();
     }
     else
     {
         ExcelAdoMdConnections.VoidDelegate f = delegate
         {
             _connExcel.Open();
         };
         f();
     }
 }
Пример #7
0
        public TabularItems.Measure GetMeasureFromDMV(string measureName)
        {
            if (!server.Connected)
            {
                throw new InvalidOperationException("You must be connected to the server");
            }

            var dmv = string.Format(
                @"SELECT [CATALOG_NAME] as [DATABASE],
    CUBE_NAME AS [CUBE],[MEASUREGROUP_NAME] AS [TABLE],[MEASURE_CAPTION] AS [MEASURE],
    [MEASURE_IS_VISIBLE]
FROM $SYSTEM.MDSCHEMA_MEASURES
WHERE CUBE_NAME  ='Model'
	AND MEASURE_CAPTION = '{0}'"    ,
                measureName);

            var daxClient = new DaxHelpers.DaxClient();

            System.Data.DataTable dtResult = null;
            using (var cnn = new ADOMD.AdomdConnection(connectionString))
            {
                cnn.Open();
                dtResult = daxClient.ExecuteTable(dmv, cnn);
                cnn.Close();
            }

            TabularItems.Measure measure = null;
            foreach (System.Data.DataRow drow in dtResult.Rows)
            {
                if (Convert.ToString(drow["MEASURE"]) == measureName)
                {
                    measure = new TabularItems.Measure(Convert.ToString(drow["TABLE"]), measureName);
                    break;
                }
            }

            if (measure == null)
            {
                throw new InvalidOperationException("Measure " + measureName + " was not found in database " + this.databaseName);
            }
            return(measure);
        }
Пример #8
0
        public void ProcessCurrent(XPObjectSpace objSpace)
        {
            var prevSshot = CashFlowHelper.GetPreviousSnapshot(objSpace);

            if (prevSshot == null)
            {
                ProcessCurrentWithoutPrev();
                _LastReturnMessage = "Processed without previous snapshot is defined in XPO.";
                return;
            }

            var    dax = new DaxClient();
            string connectionString = AppConfig.SsasConnectionString;
            var    cnn = new ADOMD.AdomdConnection(connectionString);

            cnn.Open();
            var reader = dax.ExecuteReader(@"EVALUATE
ROW
(
	""Result"",
	CALCULATE (
		COUNTROWS( CashFlow ),
		CashFlow[Snapshot OID] = ""{OID}""
	)
)".Replace("{OID}", "{" + prevSshot.Oid + "}"), cnn);

            reader.Read();
            var prevRowCount = reader.GetValue(0);

            if (prevRowCount == null)
            {
                ProcessCurrentWithPrev();
                _LastReturnMessage = "Processed previous snapshot as it currently does not exist in SSAS.";
            }
            else
            {
                ProcessCurrentWithoutPrev();
                _LastReturnMessage = "Did not process previous snapshot because previous snapshot already exists in SSAS.";
            }
        }
        public static DataTable ExecuteDataTable(string connectionString, string commandText)
        {
            #region Argument exceptions

            if (commandText == null)
            {
                throw new ArgumentNullException("commandText");
            }
            if (connectionString == null)
            {
                throw new ArgumentNullException("connectionString");
            }

            #endregion

            using (var connection = new AdomdClient.AdomdConnection(connectionString))
            {
                connection.Open();

                return(ExecuteDataTable(connection, CancellationToken.None, commandText));
            }
        }
        public static object ExecuteScalar(string connectionString, string commandText)
        {
            #region Argument exceptions

            if (commandText == null)
            {
                throw new ArgumentNullException("commandText");
            }
            if (connectionString == null)
            {
                throw new ArgumentNullException("connectionString");
            }

            #endregion

            using (var connection = new AdomdClient.AdomdConnection(connectionString))
            {
                connection.Open();

                using (var command = connection.CreateCommand())
                {
                    command.CommandTimeout = DefaultTimeout;
                    command.CommandType    = CommandType.Text;
                    command.CommandText    = commandText;

                    using (var reader = command.ExecuteReader())
                    {
                        if (reader.Read())
                        {
                            return(reader.GetValue(0));
                        }
                    }

                    return(null);
                }
            }
        }
 private static void RunAQuery(object o)
 {
     ParallelQueryThreadInfo info = null;
     try
     {
         info = (ParallelQueryThreadInfo)o;
         Microsoft.AnalysisServices.AdomdClient.AdomdConnection conn = new Microsoft.AnalysisServices.AdomdClient.AdomdConnection(info.connectionString);
         conn.Open();
         try
         {
             CellSet queryCellset;
             Microsoft.AnalysisServices.AdomdClient.AdomdCommand queryCommand = new Microsoft.AnalysisServices.AdomdClient.AdomdCommand();
             queryCommand.CommandText = info.query;
             queryCommand.Connection = conn;
             queryCellset = queryCommand.ExecuteCellSet();
             info.returnValue = queryCellset[0].Value.ToString();
         }
         finally
         {
             conn.Close();
         }
     }
     catch (Exception ex)
     {
         info.ex = ex;
     }
     finally
     {
         info.autoEvent.Set();
     }
 }
Пример #12
0
        public static void Main(string[] args)
        {
            string varSRV  = "SRV-OLAP";
            string varDB   = "dw_olap";
            string varCube = "Рух товарів";

            for (int i = 0; i < args.Length; i++)
            {
                if (args[i].ToUpper().StartsWith("/SERVER:"))
                {
                    varSRV = args[i].Substring(8);
                }
                else if (args[i].ToUpper().StartsWith("/DB:"))
                {
                    varDB = args[i].Substring(4);
                }
                else if (args[i].ToUpper().StartsWith("/CUBE:"))
                {
                    varCube = args[i].Substring(6);
                }
            }

            string varSeparator = "\t";
            Proc   p            = new Proc();

            p.CreateLog("d:\\Cube_" + varCube + ".txt");
            Microsoft.AnalysisServices.Server s = new Microsoft.AnalysisServices.Server();
            s.Connect(@"Data Source=" + varSRV + ";Provider=msolap;Initial Catalog=" + varDB);
            Microsoft.AnalysisServices.Database d = s.Databases.FindByName(varDB);
            Microsoft.AnalysisServices.Cube     c = d.Cubes.FindByName(varCube);
            p.Log("База:" + varDB + " Куб:" + varCube);
            p.Log("Розмірності");
            foreach (Microsoft.AnalysisServices.CubeDimension dim in c.Dimensions)
            {
                p.Log(dim.Name + varSeparator + dim.DimensionID + varSeparator + dim.Description);
                foreach (Microsoft.AnalysisServices.CubeAttribute attr in dim.Attributes)
                {
                    p.Log(varSeparator + attr.Attribute + varSeparator + attr.AttributeID + "\t" + attr.Attribute.Description);
                }
            }
            p.Log("Групи мір");
            foreach (Microsoft.AnalysisServices.MeasureGroup mg in c.MeasureGroups)
            {
                p.Log(mg.Name + varSeparator + mg.ID + varSeparator + mg.Description);
                foreach (Microsoft.AnalysisServices.Measure m in mg.Measures)
                {
                    p.Log(varSeparator + m.ID + varSeparator + m.Name + varSeparator + m.Description);
                }
            }

            p.Log("Калькульовані міри");

            Microsoft.AnalysisServices.AdomdClient.AdomdConnection cn = new Microsoft.AnalysisServices.AdomdClient.AdomdConnection("Data Source=" + varSRV + ";Provider=msolap;Initial Catalog=" + varDB);
            cn.Open();

            /*foreach ( Microsoft.AnalysisServices.AdomdClient.CubeDef tt in cn.Cubes)
             *  p.Log(tt.Name+varSeparator+tt.Caption );*/
            try
            {
                foreach (Microsoft.AnalysisServices.AdomdClient.Measure m in cn.Cubes[varCube].Measures)
                {
                    if (string.IsNullOrEmpty(m.Expression) == false)
                    {
                        p.Log(m.UniqueName + varSeparator); //+m.Expression +varSeparator+ m.Description );
                    }
                }
                //Console.WriteLine("{0}: {1}",m.UniqueName,m.Expression );
            }
            catch {            }
            finally { cn.Close(); };
            //Console.ReadLine();


            p.CloseLog();
        }
        public static void CreatePartitions(string CubeName, string MeasureGroupName, string SetString, string PartitionGrouperExpressionString)
        {
            if (AdomdServer.Context.ExecuteForPrepare) return;

            AdomdClient.Set s = null;
            AdomdClient.AdomdConnection conn = new AdomdClient.AdomdConnection("Data Source=" + AdomdServer.Context.CurrentServerID + ";Initial Catalog=" + AdomdServer.Context.CurrentDatabaseName);
            conn.ShowHiddenObjects = true; //ShowHiddenObjects=true allows you to see properties (like member.ParentLevel) of dimension attributes which aren't visible: https://connect.microsoft.com/SQLServer/feedback/ViewFeedback.aspx?FeedbackID=265114
            conn.Open();
            Server server = new Server();
            server.Connect("*"); //connect to the current session... important to connect this way or else you will get a deadlock when you go to save the partition changes

            AdomdServer.Context.CheckCancelled(); //could be a bit long running, so allow user to cancel

            try
            {
                AdomdServer.Context.TraceEvent(0, 0, "Retrieving Template Partition");
                Database db = server.Databases.GetByName(AdomdServer.Context.CurrentDatabaseName);
                Cube cube = db.Cubes.GetByName(CubeName);
                MeasureGroup mg = cube.MeasureGroups.GetByName(MeasureGroupName);
                Partition template = mg.Partitions[0];

                if (cube.State == AnalysisState.Unprocessed) throw new Exception("The cube [" + cube.Name + "] is unprocessed currently. Run ProcessStructure on it before partitioning it with ASSP.");

                AdomdServer.Context.TraceEvent(0, 0, "Resolving Set"); //will show up under the User Defined trace event which is selected by default
                AdomdClient.CellSet cs;
                AdomdClient.AdomdCommand cmd = new AdomdClient.AdomdCommand();
                cmd.Connection = conn;
                if (String.IsNullOrEmpty(PartitionGrouperExpressionString))
                {
                    cmd.CommandText = "select {} on 0, {" + SetString + "} on 1 "
                     + "from [" + CubeName + "]";
                    try
                    {
                        cs = cmd.ExecuteCellSet();
                    }
                    catch (Exception ex)
                    {
                        throw new Exception("The set specified was not valid: " + ex.Message);
                    }
                }
                else
                {
                    cmd.CommandText = "with member [Measures].[_ASSP_PartitionGrouper_] as " + PartitionGrouperExpressionString + " "
                     + "select [Measures].[_ASSP_PartitionGrouper_] on 0, "
                     + "{" + SetString + "} on 1 "
                     + "from [" + CubeName + "]";
                    try
                    {
                        cs = cmd.ExecuteCellSet();
                    }
                    catch (Exception ex)
                    {
                        throw new Exception("The set or partition grouper specified was not valid: " + ex.Message);
                    }
                }
                s = cs.Axes[1].Set;

                AdomdServer.Context.TraceEvent(0, 0, "Determining Partition Scheme");
                Dictionary<string, PartitionMetadata> dictPartitions = new Dictionary<string, PartitionMetadata>();
                List<string> listPartitionNames = new List<string>(dictPartitions.Count);
                for (int iTuple = 0; iTuple < s.Tuples.Count; iTuple++)
                {
                    AdomdServer.Context.CheckCancelled(); //could be a bit long running, so allow user to cancel

                    AdomdClient.Tuple t = s.Tuples[iTuple];
                    string tostring = t.ToString();
                    string sTupleUniqueName = GetTupleUniqueName(t);
                    string sTupleName = GetTupleName(t);
                    string sGrouper = sTupleUniqueName;

                    if (!String.IsNullOrEmpty(PartitionGrouperExpressionString))
                    {
                        //if a partition grouper has been specified, then group by it
                        sTupleName = sGrouper = cs.Cells[0, iTuple].Value.ToString();
                    }
                    if (!dictPartitions.ContainsKey(sGrouper))
                    {
                        string sPartitionName = mg.Name + " - " + sTupleName;
                        sPartitionName = sPartitionName.Trim();
                        if (String.IsNullOrEmpty(PartitionGrouperExpressionString))
                        {
                            //make sure partition name is unique
                            int i = 1;
                            while (listPartitionNames.Contains(sPartitionName))
                            {
                                sPartitionName = mg.Name + " - " + sTupleName + " " + (++i);
                            }
                        }
                        dictPartitions.Add(sGrouper, new PartitionMetadata(sPartitionName, t));
                        listPartitionNames.Add(sPartitionName);
                    }
                    else
                    {
                        dictPartitions[sGrouper].tuples.Add(t);
                    }
                }

                //remove all existing partitions except template
                for (int iPartition = mg.Partitions.Count - 1; iPartition > 0; iPartition--)
                {
                    mg.Partitions.RemoveAt(iPartition);
                }

                bool bNeedToDeleteTemplate = true;
                foreach (PartitionMetadata pm in dictPartitions.Values)
                {
                    AdomdServer.Context.CheckCancelled(); //could be a bit long running, so allow user to cancel

                    AdomdServer.Context.TraceEvent(0, 0, "Building Partition: " + pm.PartitionName);
                    if (template.ID == pm.PartitionName)
                    {
                        pm.Partition = template;
                        bNeedToDeleteTemplate = false;
                        pm.Partition.Process(ProcessType.ProcessClear); //unprocess it
                        AdomdServer.Context.TraceEvent(0, 0, "ProcessClear partition");
                    }
                    else
                    {
                        pm.Partition = template.Clone();
                        AdomdServer.Context.TraceEvent(0, 0, "cloned partition");
                    }
                    pm.Partition.Slice = pm.PartitionSlice;
                    pm.Partition.Name = pm.PartitionName;
                    pm.Partition.ID = pm.PartitionName;
                    if (template.ID != pm.PartitionName) mg.Partitions.Add(pm.Partition);

                    //if we're only building one partition, it must be the All member
                    if (s.Tuples.Count == 1) pm.TupleMustBeOnlyAllMembers = true;

                    string sQuery = "";
                    sQuery = pm.OldQueryDefinition;
                    string sWhereClause = pm.NewPartitionWhereClause;
                    sQuery += "\r\n" + sWhereClause;
                    pm.Partition.Source = new QueryBinding(pm.Partition.DataSource.ID, sQuery);
                }
                if (bNeedToDeleteTemplate) mg.Partitions.Remove(template);

                AdomdServer.Context.TraceEvent(0, 0, "Saving changes");
                mg.Update(UpdateOptions.ExpandFull);
                AdomdServer.Context.TraceEvent(0, 0, "Done creating partitions");
            }
            catch (Exception ex)
            {
                AdomdServer.Context.TraceEvent(0, 0, "error: " + ex.Message + " - " + ex.StackTrace);
                throw ex;
            }
            finally
            {
                try
                {
                    conn.Close();
                }
                catch { }

                try
                {
                    server.Disconnect();
                }
                catch { }
            }
        }
        private static void CreateStringDistinctCountPartitions(string CubeName, string MeasureGroupName, string SetString, string PartitionGrouperExpressionString, string[] BoundaryValues)
        {
            int NumSubPartitions = BoundaryValues.Length + 1;

            if (AdomdServer.Context.ExecuteForPrepare) return;

            AdomdClient.Set s = null;
            AdomdClient.AdomdConnection conn = new AdomdClient.AdomdConnection("Data Source=" + AdomdServer.Context.CurrentServerID + ";Initial Catalog=" + AdomdServer.Context.CurrentDatabaseName);
            conn.ShowHiddenObjects = true; //ShowHiddenObjects=true allows you to see properties (like member.ParentLevel) of dimension attributes which aren't visible: https://connect.microsoft.com/SQLServer/feedback/ViewFeedback.aspx?FeedbackID=265114
            conn.Open();
            Server server = new Server();
            server.Connect("*"); //connect to the current session... important to connect this way or else you will get a deadlock when you go to save the partition changes

            AdomdServer.Context.CheckCancelled(); //could be a bit long running, so allow user to cancel

            try
            {
                AdomdServer.Context.TraceEvent(0, 0, "Retrieving Template Partition");
                Database db = server.Databases.GetByName(AdomdServer.Context.CurrentDatabaseName);
                Cube cube = db.Cubes.GetByName(CubeName);
                MeasureGroup mg = cube.MeasureGroups.GetByName(MeasureGroupName);
                Partition template = mg.Partitions[0];

                if (cube.State == AnalysisState.Unprocessed) throw new Exception("The cube [" + cube.Name + "] is unprocessed currently. Run ProcessStructure on it before partitioning it with ASSP.");

                ////////////////////////////////////////////////////////////////
                //Distinct Count stuff
                AdomdServer.Context.TraceEvent(0, 0, "Calculating min/max distinct count value");

                Measure distinctMeasure = null;
                foreach (Measure m in mg.Measures)
                {
                    if (m.AggregateFunction == AggregationFunction.DistinctCount)
                    {
                        if (distinctMeasure != null) throw new Exception("CreateStringDistinctCountPartitions does not support more than one distinct count measure on measure group " + mg.Name + ".");
                        distinctMeasure = m;
                    }
                }
                if (distinctMeasure == null) throw new Exception("Could not find a distinct count measure in measure group " + mg.Name + ".");
                ColumnBinding distinctColumnBinding = distinctMeasure.Source.Source as ColumnBinding;
                if (distinctColumnBinding == null) throw new Exception("Distinct count measure " + distinctMeasure.Name + " was not bound to a column.");

                AdomdServer.Context.TraceEvent(0, 0, "Boundary values: " + String.Join(", ", BoundaryValues));

                AdomdServer.Context.CheckCancelled(); //could be a bit long running, so allow user to cancel

                //////////////////////////////////////////////////////////////////

                AdomdServer.Context.TraceEvent(0, 0, "Resolving Set"); //will show up under the User Defined trace event which is selected by default
                AdomdClient.CellSet cs;
                AdomdClient.AdomdCommand cmd = new AdomdClient.AdomdCommand();
                cmd.Connection = conn;
                if (String.IsNullOrEmpty(PartitionGrouperExpressionString))
                {
                    cmd.CommandText = "select {} on 0, {" + SetString + "} on 1 "
                     + "from [" + CubeName + "]";
                    try
                    {
                        cs = cmd.ExecuteCellSet();
                    }
                    catch (Exception ex)
                    {
                        throw new Exception("The set specified was not valid: " + ex.Message);
                    }
                }
                else
                {
                    cmd.CommandText = "with member [Measures].[_ASSP_PartitionGrouper_] as " + PartitionGrouperExpressionString + " "
                     + "select [Measures].[_ASSP_PartitionGrouper_] on 0, "
                     + "{" + SetString + "} on 1 "
                     + "from [" + CubeName + "]";
                    try
                    {
                        cs = cmd.ExecuteCellSet();
                    }
                    catch (Exception ex)
                    {
                        throw new Exception("The set or partition grouper specified was not valid: " + ex.Message);
                    }
                }
                s = cs.Axes[1].Set;

                AdomdServer.Context.TraceEvent(0, 0, "Determining Partition Scheme");
                Dictionary<string, PartitionMetadata> dictPartitions = new Dictionary<string, PartitionMetadata>();
                List<string> listPartitionNames = new List<string>(dictPartitions.Count);
                for (int iTuple = 0; iTuple < s.Tuples.Count; iTuple++)
                {
                    AdomdServer.Context.CheckCancelled(); //could be a bit long running, so allow user to cancel

                    AdomdClient.Tuple t = s.Tuples[iTuple];
                    string tostring = t.ToString();
                    string sTupleUniqueName = GetTupleUniqueName(t);
                    string sTupleName = GetTupleName(t);
                    string sOriginalGrouper = sTupleUniqueName;

                    if (!String.IsNullOrEmpty(PartitionGrouperExpressionString))
                    {
                        //if a partition grouper has been specified, then group by it
                        sTupleName = sOriginalGrouper = cs.Cells[0, iTuple].Value.ToString();
                    }

                    for (int iSubPartition = 1; iSubPartition <= NumSubPartitions; iSubPartition++)
                    {
                        string sGrouper = sOriginalGrouper + " - DistinctCountSegment" + iSubPartition;
                        if (!dictPartitions.ContainsKey(sGrouper))
                        {
                            string sPartitionName = mg.Name + " - " + sTupleName + " - DistinctCountSegment" + iSubPartition;
                            sPartitionName = sPartitionName.Trim();
                            if (String.IsNullOrEmpty(PartitionGrouperExpressionString))
                            {
                                //make sure partition name is unique
                                int i = 1;
                                while (listPartitionNames.Contains(sPartitionName))
                                {
                                    sPartitionName = mg.Name + " - " + sTupleName + " - DistinctCountSegment" + iSubPartition + " - " + (++i);
                                }
                            }
                            dictPartitions.Add(sGrouper, new PartitionMetadata(sPartitionName, t));
                            listPartitionNames.Add(sPartitionName);

                            DataColumn dc = distinctMeasure.ParentCube.DataSourceView.Schema.Tables[distinctColumnBinding.TableID].Columns[distinctColumnBinding.ColumnID];
                            if (!dc.ExtendedProperties.ContainsKey("ComputedColumnExpression"))
                            {
                                dictPartitions[sGrouper].DistinctCountColumn = "[" + distinctMeasure.ParentCube.DataSourceView.Schema.Tables[distinctColumnBinding.TableID].ExtendedProperties["FriendlyName"].ToString() + "].[" + GetColumnName(dc) + "]";
                            }
                            else
                            {
                                dictPartitions[sGrouper].DistinctCountColumn = dc.ExtendedProperties["ComputedColumnExpression"].ToString();
                            }

                            dictPartitions[sGrouper].DistinctCountRangeEndInclusive = false;
                            if (iSubPartition > 1)
                                dictPartitions[sGrouper].DistinctCountRangeStart = "'" + BoundaryValues[iSubPartition - 2].Replace("'", "''") + "'";
                            if (iSubPartition < NumSubPartitions)
                                dictPartitions[sGrouper].DistinctCountRangeEnd = "'" + BoundaryValues[iSubPartition - 1].Replace("'", "''") + "'";
                        }
                        else
                        {
                            dictPartitions[sGrouper].tuples.Add(t);
                        }
                    }
                }

                //remove all existing partitions except template
                for (int iPartition = mg.Partitions.Count - 1; iPartition > 0; iPartition--)
                {
                    mg.Partitions.RemoveAt(iPartition);
                }

                bool bNeedToDeleteTemplate = true;
                foreach (PartitionMetadata pm in dictPartitions.Values)
                {
                    AdomdServer.Context.CheckCancelled(); //could be a bit long running, so allow user to cancel

                    AdomdServer.Context.TraceEvent(0, 0, "Building Partition: " + pm.PartitionName);
                    if (template.ID == pm.PartitionName)
                    {
                        pm.Partition = template;
                        bNeedToDeleteTemplate = false;
                        pm.Partition.Process(ProcessType.ProcessClear); //unprocess it
                    }
                    else
                    {
                        pm.Partition = template.Clone();
                    }
                    pm.Partition.Slice = pm.PartitionSlice;
                    pm.Partition.Name = pm.PartitionName;
                    pm.Partition.ID = pm.PartitionName;
                    if (template.ID != pm.PartitionName) mg.Partitions.Add(pm.Partition);

                    //if we're only building one partition, it must be the All member
                    if (s.Tuples.Count == 1) pm.TupleMustBeOnlyAllMembers = true;

                    string sQuery = "";
                    sQuery = pm.OldQueryDefinition;
                    string sWhereClause = pm.NewPartitionWhereClause;
                    sQuery += "\r\n" + sWhereClause;
                    pm.Partition.Source = new QueryBinding(pm.Partition.DataSource.ID, sQuery);
                }
                if (bNeedToDeleteTemplate) mg.Partitions.Remove(template);

                AdomdServer.Context.TraceEvent(0, 0, "Saving changes");
                mg.Update(UpdateOptions.ExpandFull);
                AdomdServer.Context.TraceEvent(0, 0, "Done creating partitions");
            }
            finally
            {
                try
                {
                    conn.Close();
                }
                catch { }

                try
                {
                    server.Disconnect();
                }
                catch { }
            }
        }
        public static void CreateDistinctCountPartitions(string CubeName, string MeasureGroupName, string SetString, string PartitionGrouperExpressionString, int NumSubPartitions)
        {
            if (AdomdServer.Context.ExecuteForPrepare) return;

            AdomdClient.Set s = null;
            AdomdClient.AdomdConnection conn = new AdomdClient.AdomdConnection("Data Source=" + AdomdServer.Context.CurrentServerID + ";Initial Catalog=" + AdomdServer.Context.CurrentDatabaseName);
            conn.ShowHiddenObjects = true; //ShowHiddenObjects=true allows you to see properties (like member.ParentLevel) of dimension attributes which aren't visible: https://connect.microsoft.com/SQLServer/feedback/ViewFeedback.aspx?FeedbackID=265114
            conn.Open();
            Server server = new Server();
            server.Connect("*"); //connect to the current session... important to connect this way or else you will get a deadlock when you go to save the partition changes

            AdomdServer.Context.CheckCancelled(); //could be a bit long running, so allow user to cancel

            try
            {
                AdomdServer.Context.TraceEvent(0, 0, "Retrieving Template Partition");
                Database db = server.Databases.GetByName(AdomdServer.Context.CurrentDatabaseName);
                Cube cube = db.Cubes.GetByName(CubeName);
                MeasureGroup mg = cube.MeasureGroups.GetByName(MeasureGroupName);
                Partition template = mg.Partitions[0];

                if (cube.State == AnalysisState.Unprocessed) throw new Exception("The cube [" + cube.Name + "] is unprocessed currently. Run ProcessStructure on it before partitioning it with ASSP.");

                ////////////////////////////////////////////////////////////////
                //Distinct Count stuff
                AdomdServer.Context.TraceEvent(0, 0, "Calculating min/max distinct count value");

                Measure distinctMeasure = null;
                foreach (Measure m in mg.Measures)
                {
                    if (m.AggregateFunction == AggregationFunction.DistinctCount)
                    {
                        if (distinctMeasure != null) throw new Exception("CreateDistinctCountPartitions does not support more than one distinct count measure on measure group " + mg.Name + ".");
                        distinctMeasure = m;
                    }
                }
                if (distinctMeasure == null) throw new Exception("Could not find a distinct count measure in measure group " + mg.Name + ".");
                ColumnBinding distinctColumnBinding = distinctMeasure.Source.Source as ColumnBinding;
                if (distinctColumnBinding == null) throw new Exception("Distinct count measure " + distinctMeasure.Name + " was not bound to a column.");

                MeasureGroupAttribute distinctMGDimensionAttribute = null;
                foreach (MeasureGroupDimension mgDim in mg.Dimensions)
                {
                    if (mgDim is RegularMeasureGroupDimension)
                    {
                        MeasureGroupAttribute mga = PartitionMetadata.GetGranularityAttribute(mgDim);
                        if (mga.KeyColumns.Count == 1)
                        {
                            ColumnBinding cb = mga.KeyColumns[0].Source as ColumnBinding;
                            if (cb.ColumnID == distinctColumnBinding.ColumnID && cb.TableID == distinctColumnBinding.TableID)
                            {
                                distinctMGDimensionAttribute = mga;
                                break;
                            }
                        }
                        AdomdServer.Context.CheckCancelled(); //could be a bit long running, so allow user to cancel
                    }
                }
                if (distinctMGDimensionAttribute == null) throw new Exception("Couldn't find a dimension joined to this measure group on the distinct count column [" + distinctColumnBinding.TableID + "].[" + distinctColumnBinding.ColumnID + "].");
                if (distinctMGDimensionAttribute.KeyColumns[0].DataType != System.Data.OleDb.OleDbType.Integer && distinctMGDimensionAttribute.KeyColumns[0].DataType != System.Data.OleDb.OleDbType.BigInt && distinctMGDimensionAttribute.KeyColumns[0].DataType != System.Data.OleDb.OleDbType.UnsignedInt && distinctMGDimensionAttribute.KeyColumns[0].DataType != System.Data.OleDb.OleDbType.UnsignedBigInt)
                    throw new Exception("ASSP encountered a problem partitioning on distinct count column [" + distinctColumnBinding.TableID + "].[" + distinctColumnBinding.ColumnID + "] as ASSP only allows partitioning on a distinct count measure of data type Int or BigInt (or the unsigned equivalents) with CreateDistinctCountPartitions. Use CreateStringDistinctCountPartitions which allows boundary values to be passed in.");

                string sDistinctCountCubeDim = "[" + distinctMGDimensionAttribute.Parent.CubeDimension.Name + "]";
                string sDistinctCountAttribute = sDistinctCountCubeDim + ".[" + distinctMGDimensionAttribute.Attribute.Name + "]";
                string sDistinctCountLevel = sDistinctCountAttribute + ".[" + distinctMGDimensionAttribute.Attribute.Name + "]";

                AdomdClient.CellSet distinctKeysCS;
                AdomdClient.AdomdCommand distinctKeysCmd = new AdomdClient.AdomdCommand();
                distinctKeysCmd.Connection = conn;

                //doing a min and max across 20 million members took 14 minutes, so only scan the top and bottom million should should give us a pretty good estimate in a reasonable time unless the sorting is completely strange
                distinctKeysCmd.CommandText = @"
                    with
                    member [Measures].[_MinKey_] as Min(Head(" + sDistinctCountLevel + ".Members,1000000), " + sDistinctCountAttribute + @".CurrentMember.Properties(""Key0"", TYPED))
                    member [Measures].[_MaxKey_] as Max(Tail(" + sDistinctCountLevel + ".Members,1000000), " + sDistinctCountAttribute + @".CurrentMember.Properties(""Key0"", TYPED))
                    select {[Measures].[_MinKey_], [Measures].[_MaxKey_]} on 0
                    from [" + CubeName + @"]
                ";

                try
                {
                    distinctKeysCS = distinctKeysCmd.ExecuteCellSet();
                }
                catch (Exception ex)
                {
                    throw new Exception("Could not retrieve the min and max key value for the dimension matching the distinct count measure: " + ex.Message);
                }

                long lngMinDistinctValue = Convert.ToInt64(distinctKeysCS.Cells[0].Value);
                long lngMaxDistinctValue = Convert.ToInt64(distinctKeysCS.Cells[1].Value);

                AdomdServer.Context.TraceEvent(0, 0, "Min distinct value: " + lngMinDistinctValue);
                AdomdServer.Context.TraceEvent(0, 0, "Max distinct value: " + lngMaxDistinctValue);

                AdomdServer.Context.CheckCancelled(); //could be a bit long running, so allow user to cancel

                //////////////////////////////////////////////////////////////////

                AdomdServer.Context.TraceEvent(0, 0, "Resolving Set"); //will show up under the User Defined trace event which is selected by default
                AdomdClient.CellSet cs;
                AdomdClient.AdomdCommand cmd = new AdomdClient.AdomdCommand();
                cmd.Connection = conn;
                if (String.IsNullOrEmpty(PartitionGrouperExpressionString))
                {
                    cmd.CommandText = "select {} on 0, {" + SetString + "} on 1 "
                     + "from [" + CubeName + "]";
                    try
                    {
                        cs = cmd.ExecuteCellSet();
                    }
                    catch (Exception ex)
                    {
                        throw new Exception("The set specified was not valid: " + ex.Message);
                    }
                }
                else
                {
                    cmd.CommandText = "with member [Measures].[_ASSP_PartitionGrouper_] as " + PartitionGrouperExpressionString + " "
                     + "select [Measures].[_ASSP_PartitionGrouper_] on 0, "
                     + "{" + SetString + "} on 1 "
                     + "from [" + CubeName + "]";
                    try
                    {
                        cs = cmd.ExecuteCellSet();
                    }
                    catch (Exception ex)
                    {
                        throw new Exception("The set or partition grouper specified was not valid: " + ex.Message);
                    }
                }
                s = cs.Axes[1].Set;

                AdomdServer.Context.TraceEvent(0, 0, "Determining Partition Scheme");
                Dictionary<string, PartitionMetadata> dictPartitions = new Dictionary<string, PartitionMetadata>();
                List<string> listPartitionNames = new List<string>(dictPartitions.Count);
                for (int iTuple = 0; iTuple < s.Tuples.Count; iTuple++)
                {
                    AdomdServer.Context.CheckCancelled(); //could be a bit long running, so allow user to cancel

                    AdomdClient.Tuple t = s.Tuples[iTuple];
                    string tostring = t.ToString();
                    string sTupleUniqueName = GetTupleUniqueName(t);
                    string sTupleName = GetTupleName(t);
                    string sOriginalGrouper = sTupleUniqueName;

                    if (!String.IsNullOrEmpty(PartitionGrouperExpressionString))
                    {
                        //if a partition grouper has been specified, then group by it
                        sTupleName = sOriginalGrouper = cs.Cells[0, iTuple].Value.ToString();
                    }

                    for (int iSubPartition = 1; iSubPartition <= NumSubPartitions; iSubPartition++)
                    {
                        string sGrouper = sOriginalGrouper + " - DistinctCountSegment" + iSubPartition;
                        if (!dictPartitions.ContainsKey(sGrouper))
                        {
                            string sPartitionName = mg.Name + " - " + sTupleName + " - DistinctCountSegment" + iSubPartition;
                            sPartitionName = sPartitionName.Trim();
                            if (String.IsNullOrEmpty(PartitionGrouperExpressionString))
                            {
                                //make sure partition name is unique
                                int i = 1;
                                while (listPartitionNames.Contains(sPartitionName))
                                {
                                    sPartitionName = mg.Name + " - " + sTupleName + " - DistinctCountSegment" + iSubPartition + " - " + (++i);
                                }
                            }
                            dictPartitions.Add(sGrouper, new PartitionMetadata(sPartitionName, t));
                            listPartitionNames.Add(sPartitionName);

                            DataColumn dc = distinctMeasure.ParentCube.DataSourceView.Schema.Tables[distinctColumnBinding.TableID].Columns[distinctColumnBinding.ColumnID];
                            if (!dc.ExtendedProperties.ContainsKey("ComputedColumnExpression"))
                            {
                                dictPartitions[sGrouper].DistinctCountColumn = "[" + distinctMeasure.ParentCube.DataSourceView.Schema.Tables[distinctColumnBinding.TableID].ExtendedProperties["FriendlyName"].ToString() + "].[" + GetColumnName(dc) + "]";
                            }
                            else
                            {
                                dictPartitions[sGrouper].DistinctCountColumn = dc.ExtendedProperties["ComputedColumnExpression"].ToString();
                            }

                            if (iSubPartition > 1)
                                dictPartitions[sGrouper].DistinctCountRangeStart = (((lngMaxDistinctValue - lngMinDistinctValue) / NumSubPartitions) * (iSubPartition - 1) + lngMinDistinctValue + 1).ToString();
                            if (iSubPartition < NumSubPartitions)
                                dictPartitions[sGrouper].DistinctCountRangeEnd = (((lngMaxDistinctValue - lngMinDistinctValue) / NumSubPartitions) * iSubPartition + lngMinDistinctValue).ToString();
                        }
                        else
                        {
                            dictPartitions[sGrouper].tuples.Add(t);
                        }
                    }
                }

                //remove all existing partitions except template
                for (int iPartition = mg.Partitions.Count - 1; iPartition > 0; iPartition--)
                {
                    mg.Partitions.RemoveAt(iPartition);
                }

                bool bNeedToDeleteTemplate = true;
                foreach (PartitionMetadata pm in dictPartitions.Values)
                {
                    AdomdServer.Context.CheckCancelled(); //could be a bit long running, so allow user to cancel

                    AdomdServer.Context.TraceEvent(0, 0, "Building Partition: " + pm.PartitionName);
                    if (template.ID == pm.PartitionName)
                    {
                        pm.Partition = template;
                        bNeedToDeleteTemplate = false;
                        pm.Partition.Process(ProcessType.ProcessClear); //unprocess it
                    }
                    else
                    {
                        pm.Partition = template.Clone();
                    }
                    pm.Partition.Slice = pm.PartitionSlice;
                    pm.Partition.Name = pm.PartitionName;
                    pm.Partition.ID = pm.PartitionName;
                    if (template.ID != pm.PartitionName) mg.Partitions.Add(pm.Partition);

                    //if we're only building one partition, it must be the All member
                    if (s.Tuples.Count == 1) pm.TupleMustBeOnlyAllMembers = true;

                    string sQuery = "";
                    sQuery = pm.OldQueryDefinition;
                    string sWhereClause = pm.NewPartitionWhereClause;
                    sQuery += "\r\n" + sWhereClause;
                    pm.Partition.Source = new QueryBinding(pm.Partition.DataSource.ID, sQuery);
                }
                if (bNeedToDeleteTemplate) mg.Partitions.Remove(template);

                AdomdServer.Context.TraceEvent(0, 0, "Saving changes");
                mg.Update(UpdateOptions.ExpandFull);
                AdomdServer.Context.TraceEvent(0, 0, "Done creating partitions");
            }
            finally
            {
                try
                {
                    conn.Close();
                }
                catch { }

                try
                {
                    server.Disconnect();
                }
                catch { }
            }
        }
 //as a workaround to a bug: https://connect.microsoft.com/feedback/viewfeedback.aspx?FeedbackID=260636&siteid=68&wa=wsignin1.0
 private static object[] GetMemberKeys(AdomdClient.Member m, int iNumKeys)
 {
     AdomdClient.AdomdConnection conn = new AdomdClient.AdomdConnection("Data Source=" + AdomdServer.Context.CurrentServerID + ";Initial Catalog=" + AdomdServer.Context.CurrentDatabaseName);
     conn.ShowHiddenObjects = true; //ShowHiddenObjects=true allows you to see properties (like member.ParentLevel) of dimension attributes which aren't visible: https://connect.microsoft.com/SQLServer/feedback/ViewFeedback.aspx?FeedbackID=265114
     conn.Open();
     try
     {
         StringBuilder sCmd = new StringBuilder();
         sCmd.AppendLine("with");
         for (int i = 0; i < iNumKeys; i++)
         {
             sCmd.AppendLine("member [Measures].[_ASSP_MemberKey" + i + "] as " + m.ParentLevel.ParentHierarchy.UniqueName + ".CurrentMember.Properties('Key" + i + "')");
         }
         sCmd.Append("select {");
         for (int i = 0; i < iNumKeys; i++)
         {
             if (i > 0) sCmd.Append(", ");
             sCmd.Append("[Measures].[_ASSP_MemberKey" + i + "]");
         }
         sCmd.AppendLine("} on 0,");
         sCmd.Append(m.UniqueName).AppendLine(" on 1");
         sCmd.Append("from [").Append(m.ParentLevel.ParentHierarchy.ParentDimension.ParentCube.Name).AppendLine("]");
         AdomdClient.AdomdCommand cmd = new AdomdClient.AdomdCommand();
         cmd.Connection = conn;
         cmd.CommandText = sCmd.ToString();
         AdomdClient.CellSet cs = cmd.ExecuteCellSet();
         List<object> keys = new List<object>(cs.Cells.Count);
         foreach (AdomdClient.Cell c in cs.Cells)
         {
             keys.Add(c.CellProperties["FORMATTED_VALUE"].Value); //the FORMATTED_VALUE will be null if it should be null
         }
         return keys.ToArray();
     }
     finally
     {
         try
         {
             conn.Close();
         }
         catch { }
     }
 }
 private void LoadSessions()
 {
     Microsoft.AnalysisServices.AdomdServer.Context.TraceEvent(0, 4, "Starting LoadSessions");
     AdomdClient.AdomdConnection conn = new AdomdClient.AdomdConnection("Data Source=" + AdomdServer.Context.CurrentServerID);
     conn.Open();
     DataSet ds = conn.GetSchemaDataSet("DISCOVER_SESSIONS", null);
     conn.Close();
     foreach (DataRow dr in ds.Tables[0].Rows)
     {
         sessions.Add(Convert.ToInt32(dr["SESSION_SPID"]), Convert.ToString(dr["SESSION_USER_NAME"]));
     }
     Microsoft.AnalysisServices.AdomdServer.Context.TraceEvent(0, 5, "Finishing LoadSessions");
 }
        public static object GetDBVal(string dbName)
        {
            object returnValue;
            string measuresText = "";
            string dimensionsText = "";
            Boolean addcomma = false;

            foreach (AMDS.Dimension d in Context.CurrentCube.Dimensions)
            {
                foreach (AMDS.Hierarchy h in d.AttributeHierarchies)
                {

                    if (d.DimensionType == DimensionTypeEnum.Measure)
                    {
                        measuresText = h.CurrentMember.UniqueName;
                    }
                    else
                        //eliminate comparison dimension from the query
                        if ((h.CurrentMember.UniqueName != h.DefaultMember) && (!h.CurrentMember.UniqueName.Contains("[Comparison Operations]")))
                    {
                        if (addcomma == false)
                            addcomma = true;
                        else
                            dimensionsText += ",";

                        dimensionsText += h.CurrentMember.UniqueName;
                    }

                }
            }
            //if all the dimensions in default members do not compose where clause of the query
            if(dimensionsText!="") dimensionsText = " where (" + dimensionsText + ")";

            string query=" select "+ measuresText+" on 0 from ["+Context.CurrentCube.Name+"] "+ dimensionsText;

            Microsoft.AnalysisServices.AdomdClient.AdomdConnection conn = new Microsoft.AnalysisServices.AdomdClient.AdomdConnection("Data Source=" + Context.Server.Name+";Catalog="+dbName);
                conn.Open();
                try
                {
                    AMDC.CellSet queryCellset;
                    Microsoft.AnalysisServices.AdomdClient.AdomdCommand queryCommand = new Microsoft.AnalysisServices.AdomdClient.AdomdCommand();
                    queryCommand.CommandText = query;
                    queryCommand.Connection = conn;
                    queryCellset = queryCommand.ExecuteCellSet();
                    returnValue = queryCellset[0].Value;
                }
                finally
                {
                    conn.Close();
                }
            return returnValue;
        }
Пример #19
0
        /*
         * Return results from query
         */
        public AdomdDataReader GetQueryResult(string sQuery)
        {
            try
            {
                string sConnString = "Data Source=" + sServer + "; Initial Catalog=" + sCatalog;
                Microsoft.AnalysisServices.AdomdClient.AdomdConnection objConn = new Microsoft.AnalysisServices.AdomdClient.AdomdConnection(sConnString);
                objConn.Open();
                Microsoft.AnalysisServices.AdomdClient.AdomdCommand objCmd = objConn.CreateCommand();
                objCmd.CommandText = sQuery;

                //Microsoft.AnalysisServices.AdomdClient.AdomdDataReader objReader = objCmd.ExecuteReader();
                //Microsoft.AnalysisServices.AdomdClient.AdomdDataAdapter objDataAdaptor = new Microsoft.AnalysisServices.AdomdClient.AdomdDataAdapter(objCmd);

                Microsoft.AnalysisServices.AdomdClient.AdomdDataReader objDataReader = objCmd.ExecuteReader(CommandBehavior.CloseConnection);

                /*
                try
                {
                    for (int i = 0; i < objDataReader.FieldCount; i++)
                    {
                        Console.Write(objDataReader.GetName(i) + "\t");
                    }
                    Console.WriteLine();
                    while (objDataReader.Read())
                    {
                        for (int i = 0; i < objDataReader.FieldCount; i++)
                        {
                            object value = objDataReader.GetValue(i);
                            string strValue = (value == null) ?
                            string.Empty : value.ToString();
                            Console.Write(strValue + "\t");
                        }
                        Console.WriteLine();
                    }
                }
                finally
                {
                    objDataReader.Close();
                }
                */

                return objDataReader;
            }
            catch (Exception e)
            {
                Console.WriteLine(e.StackTrace);
            }

            return null;
        }