/// <summary>
        /// Writes data contained in DataTable to table stored in TableName property.
        /// </summary>
        /// <param name="dtList">List of temp file names containing data tables with grid rows to be output.</param>
        /// <returns>True if output operation is successful. False if write fails.</returns>
        public bool WriteDataToOutput(PFList <string> dtList)
        {
            bool       success       = true;
            PFDatabase db            = null;
            bool       createTable   = false;
            DataTable  dt            = new DataTable();
            string     tableName     = string.Empty;
            bool       isOracleOdbc  = false;
            bool       isOracleOledb = false;

            try
            {
                if (dtList.Count == 0)
                {
                    _msg.Length = 0;
                    _msg.Append("WriteDataToOutput for list of temp files has failed.");
                    _msg.Append(Environment.NewLine);
                    _msg.Append("Temp file name list is empty.");
                    throw new System.Exception(_msg.ToString());
                }

                //Load first temp file in list to get data table schema
                dt.Rows.Clear();
                dt.ReadXml(dtList[0]);

                db = new PFDatabase(this.DbPlatform, this.DbDllPath, this.DbNamespace + "." + this.DbClassName);
                db.ConnectionString = this.ConnectionString;

                tableName = this.TableName;

                //workaround for oracle odbc and oledb driver problems with inserts
                if (this.DbPlatform == DatabasePlatform.ODBC)
                {
                    PFOdbc odbcDb = new PFOdbc();
                    odbcDb.ConnectionString = this.ConnectionString;
                    DatabasePlatform odbcDbPlat = odbcDb.GetDatabasePlatform();
                    if (odbcDbPlat == DatabasePlatform.OracleNative || odbcDbPlat == DatabasePlatform.MSOracle)
                    {
                        isOracleOdbc = true;
                    }
                    odbcDb = null;
                }

                if (this.DbPlatform == DatabasePlatform.OLEDB)
                {
                    PFOleDb oledbDb = new PFOleDb();
                    oledbDb.ConnectionString = this.ConnectionString;
                    DatabasePlatform oledbDbPlat = oledbDb.GetDatabasePlatform();
                    if (oledbDbPlat == DatabasePlatform.OracleNative || oledbDbPlat == DatabasePlatform.MSOracle)
                    {
                        isOracleOledb = true;
                    }
                    oledbDb = null;
                }

                //set table and column names to upper case if this is an Oracle ODBC driver or OLEDB provider
                if (isOracleOdbc || isOracleOledb)
                {
                    tableName = this.TableName.ToUpper();
                    for (int colInx = 0; colInx < dt.Columns.Count; colInx++)
                    {
                        dt.Columns[colInx].ColumnName = dt.Columns[colInx].ColumnName.ToUpper();
                    }
                }
                else
                {
                    tableName = this.TableName;
                }

                //end workaround for oracle odbc and oledb



                dt.TableName = tableName;

                if (db.TableExists(tableName))
                {
                    if (this.ReplaceExistingTable)
                    {
                        db.OpenConnection();
                        db.DropTable(tableName);
                        db.CloseConnection();
                        createTable = true;
                    }
                    else
                    {
                        createTable = false;  //existing table will be imported into
                    }
                }
                else
                {
                    createTable = true;
                }

                if (createTable)
                {
                    db.OpenConnection();
                    string createScript  = string.Empty;
                    string errorMessages = string.Empty;
                    bool   tabCreated    = db.CreateTable(dt, out createScript, out errorMessages);
                    if (tabCreated == false)
                    {
                        _msg.Length = 0;
                        _msg.Append("Unable to create table: ");
                        _msg.Append(tableName);
                        _msg.Append(Environment.NewLine);
                        _msg.Append("Error Messages: ");
                        _msg.Append(errorMessages);
                        _msg.Append(Environment.NewLine);
                        _msg.Append("Create Script: ");
                        _msg.Append(createScript);
                        throw new System.Exception(_msg.ToString());
                    }
                    db.CloseConnection();
                }

                for (int dtInx = 0; dtInx < dtList.Count; dtInx++)
                {
                    _msg.Length = 0;
                    _msg.Append("List # ");
                    _msg.Append(dtInx.ToString());
                    Console.WriteLine(_msg.ToString());
                    dt           = new DataTable();
                    dt.TableName = this.TableName;  //original table name should be in xml file definition
                    dt.Rows.Clear();
                    dt.ReadXml(dtList[dtInx]);
                    db.OpenConnection();
                    //set table and column names to upper case if this is an Oracle ODBC driver or OLEDB provider
                    if (isOracleOdbc || isOracleOledb)
                    {
                        dt.TableName = this.TableName.ToUpper();
                        for (int colInx = 0; colInx < dt.Columns.Count; colInx++)
                        {
                            dt.Columns[colInx].ColumnName = dt.Columns[colInx].ColumnName.ToUpper();
                        }
                    }
                    db.ImportDataFromDataTable(dt, this.OutputBatchSize);
                    db.CloseConnection();
                    dt = null;
                }
            }
            catch (System.Exception ex)
            {
                success     = false;
                _msg.Length = 0;
                _msg.Append(AppGlobals.AppMessages.FormatErrorMessage(ex));
                throw new System.Exception(_msg.ToString());
            }
            finally
            {
                if (db != null)
                {
                    if (db.IsConnected)
                    {
                        db.CloseConnection();
                    }
                    db = null;
                }
            }

            return(success);
        }
        /// <summary>
        /// Writes data contained in DataTable to table stored in TableName property.
        /// </summary>
        /// <param name="dt">DataTable object containing data to be output.</param>
        /// <returns>True if output operation is successful. False if write fails.</returns>
        public bool WriteDataToOutput(DataTable dt)
        {
            bool       success       = true;
            PFDatabase db            = null;
            bool       createTable   = false;
            DataTable  saveDtSchema  = null;
            string     tableName     = string.Empty;
            bool       isOracleOdbc  = false;
            bool       isOracleOledb = false;

            try
            {
                //save column names that may be changed during export processing so that they can be restored in finally block below
                saveDtSchema = dt.Clone();

                db = new PFDatabase(this.DbPlatform, this.DbDllPath, this.DbNamespace + "." + this.DbClassName);
                db.ConnectionString = this.ConnectionString;

                tableName = this.TableName;

                //workaround for oracle odbc and oledb driver problems with inserts
                if (this.DbPlatform == DatabasePlatform.ODBC)
                {
                    PFOdbc odbcDb = new PFOdbc();
                    odbcDb.ConnectionString = this.ConnectionString;
                    DatabasePlatform odbcDbPlat = odbcDb.GetDatabasePlatform();
                    if (odbcDbPlat == DatabasePlatform.OracleNative || odbcDbPlat == DatabasePlatform.MSOracle)
                    {
                        isOracleOdbc = true;
                    }
                    odbcDb = null;
                }

                if (this.DbPlatform == DatabasePlatform.OLEDB)
                {
                    PFOleDb oledbDb = new PFOleDb();
                    oledbDb.ConnectionString = this.ConnectionString;
                    DatabasePlatform oledbDbPlat = oledbDb.GetDatabasePlatform();
                    if (oledbDbPlat == DatabasePlatform.OracleNative || oledbDbPlat == DatabasePlatform.MSOracle)
                    {
                        isOracleOledb = true;
                    }
                    oledbDb = null;
                }

                //set table and column names to upper case if this is an Oracle ODBC driver or OLEDB provider
                if (isOracleOdbc || isOracleOledb)
                {
                    tableName = this.TableName.ToUpper();
                    for (int colInx = 0; colInx < dt.Columns.Count; colInx++)
                    {
                        dt.Columns[colInx].ColumnName = dt.Columns[colInx].ColumnName.ToUpper();
                    }
                }

                //end workaround for oracle odbc and oledb

                dt.TableName = tableName;

                if (db.TableExists(tableName))
                {
                    if (this.ReplaceExistingTable)
                    {
                        db.OpenConnection();
                        db.DropTable(tableName);
                        db.CloseConnection();
                        createTable = true;
                    }
                    else
                    {
                        createTable = false;  //existing table will be imported into
                    }
                }
                else
                {
                    createTable = true;
                }

                if (createTable)
                {
                    db.OpenConnection();
                    string createScript  = string.Empty;
                    string errorMessages = string.Empty;
                    bool   tabCreated    = db.CreateTable(dt, out createScript, out errorMessages);
                    if (tabCreated == false)
                    {
                        _msg.Length = 0;
                        _msg.Append("Unable to create table: ");
                        _msg.Append(tableName);
                        _msg.Append(Environment.NewLine);
                        _msg.Append("Error Messages: ");
                        _msg.Append(errorMessages);
                        _msg.Append(Environment.NewLine);
                        _msg.Append("Create Script: ");
                        _msg.Append(createScript);
                        throw new System.Exception(_msg.ToString());
                    }
                    db.CloseConnection();
                }

                db.OpenConnection();
                db.ImportDataFromDataTable(dt, this.OutputBatchSize);
                db.CloseConnection();
            }
            catch (System.Exception ex)
            {
                success     = false;
                _msg.Length = 0;
                _msg.Append(AppGlobals.AppMessages.FormatErrorMessage(ex));
                throw new System.Exception(_msg.ToString());
            }
            finally
            {
                if (db != null)
                {
                    if (db.IsConnected)
                    {
                        db.CloseConnection();
                    }
                    db = null;
                }
                //resstore any column names that may have been changed during export processing
                for (int colInx = 0; colInx < dt.Columns.Count; colInx++)
                {
                    dt.Columns[colInx].ColumnName = saveDtSchema.Columns[colInx].ColumnName;
                }
            }

            return(success);
        }
Beispiel #3
0
        public static void CreateTableTest(MainForm frm)
        {
            string           dbPlatformDesc = DatabasePlatform.Unknown.ToString();
            DatabasePlatform dbPlatform     = DatabasePlatform.Unknown;
            PFDatabase       db             = null;
            string           connStr        = string.Empty;
            string           nmSpace        = string.Empty;
            string           clsName        = string.Empty;
            string           dllPath        = string.Empty;
            Stopwatch        sw             = new Stopwatch();

            string              createScript = string.Empty;
            string              tableName    = string.Empty;
            StringBuilder       sql          = new StringBuilder();
            PFUnitTestDataTable unitTestDt01 = null;
            PFUnitTestDataTable unitTestDt02 = null;

            try
            {
                _msg.Length = 0;
                _msg.Append("CreateTableTest started ...\r\n");
                Program._messageLog.WriteLine(_msg.ToString());

                string[] parsedConnectionInfo = frm.cboConnectionString.Text.Split('|');
                dbPlatformDesc = parsedConnectionInfo[0];
                connStr        = parsedConnectionInfo[1];

                string   configValue  = AppConfig.GetStringValueFromConfigFile(dbPlatformDesc, string.Empty);
                string[] parsedConfig = configValue.Split('|');
                nmSpace = parsedConfig[0];
                clsName = parsedConfig[1];
                dllPath = parsedConfig[2];

                if (frm.txtTableName.Text.Length == 0)
                {
                    throw new System.Exception("You must specify a table name.");
                }

                _msg.Length = 0;
                _msg.Append("Connecting to ");
                _msg.Append(dbPlatformDesc);
                Program._messageLog.WriteLine(_msg.ToString());


                sw.Start();

                db                  = new PFDatabase(dbPlatformDesc, dllPath, nmSpace + "." + clsName);
                dbPlatform          = db.DbPlatform;
                db.ConnectionString = connStr;
                db.OpenConnection();

                sw.Stop();
                _msg.Length = 0;
                _msg.Append("Open connection time: ");
                _msg.Append(sw.FormattedElapsedTime);
                Program._messageLog.WriteLine(_msg.ToString());


                tableName = frm.txtTableName.Text;

                string   catalogName     = string.Empty;
                string   schemaName      = string.Empty;
                string   tabName         = string.Empty;
                string[] parsedTableName = tableName.Split('.');
                if (parsedTableName.Length == 2)
                {
                    schemaName = parsedTableName[0];
                    tabName    = parsedTableName[1];
                }
                else if (parsedTableName.Length == 1)
                {
                    tabName = parsedTableName[0];
                }
                else if (parsedTableName.Length == 3)
                {
                    catalogName = parsedTableName[0];
                    schemaName  = parsedTableName[1];
                    tabName     = parsedTableName[2];
                }
                else
                {
                    tabName = string.Empty;
                }


                if (db.TableExists(catalogName, schemaName, tabName))
                {
                    bool dropped = db.DropTable(catalogName, schemaName, tabName);
                    if (dropped == false)
                    {
                        _msg.Length = 0;
                        _msg.Append("Unable to drop table ");
                        if (catalogName != string.Empty)
                        {
                            _msg.Append(catalogName);
                            _msg.Append(".");
                        }
                        if (schemaName != string.Empty)
                        {
                            _msg.Append(schemaName);
                            _msg.Append(".");
                        }
                        _msg.Append(tabName);
                        throw new DataException(_msg.ToString());
                    }
                }

                if (db.TableExists(catalogName, schemaName, tabName + "_02"))
                {
                    bool dropped = db.DropTable(catalogName, schemaName, tabName + "_02");
                    if (dropped == false)
                    {
                        _msg.Length = 0;
                        _msg.Append("Unable to drop table ");
                        if (catalogName != string.Empty)
                        {
                            _msg.Append(catalogName);
                            _msg.Append(".");
                        }
                        if (schemaName != string.Empty)
                        {
                            _msg.Append(schemaName);
                            _msg.Append(".");
                        }
                        _msg.Append(tabName + "_02");
                        throw new DataException(_msg.ToString());
                    }
                }


                unitTestDt01 = new PFUnitTestDataTable(db, schemaName, tabName, true);
                unitTestDt02 = new PFUnitTestDataTable(db, schemaName, tabName + "_02", true);


                //---
                _msg.Length = 0;
                _msg.Append("Initializing TableColumns");
                Program._messageLog.WriteLine(_msg.ToString());

                //select which data types to include
                List <KeyValuePair <string, string> > dataTypesToInclude = new List <KeyValuePair <string, string> >();

                dataTypesToInclude.Add(new KeyValuePair <string, string>("System.Int32", "1"));
                dataTypesToInclude.Add(new KeyValuePair <string, string>("System.String", "this is a string value"));
                dataTypesToInclude.Add(new KeyValuePair <string, string>("System.Int32", "1123456789"));
                dataTypesToInclude.Add(new KeyValuePair <string, string>("System.UInt32", "3123456789"));
                dataTypesToInclude.Add(new KeyValuePair <string, string>("System.Int64", "23123456789"));
                dataTypesToInclude.Add(new KeyValuePair <string, string>("System.UInt64", "8881234567889"));
                dataTypesToInclude.Add(new KeyValuePair <string, string>("System.Int16", "11123"));
                dataTypesToInclude.Add(new KeyValuePair <string, string>("System.UInt16", "52432"));
                dataTypesToInclude.Add(new KeyValuePair <string, string>("System.Double", "123456.7654"));
                dataTypesToInclude.Add(new KeyValuePair <string, string>("System.Single", "321.234"));
                dataTypesToInclude.Add(new KeyValuePair <string, string>("System.Decimal", "2123456789.22"));
                dataTypesToInclude.Add(new KeyValuePair <string, string>("System.Char", "A"));
                dataTypesToInclude.Add(new KeyValuePair <string, string>("System.Char[]", "ABCDEFGH"));
                dataTypesToInclude.Add(new KeyValuePair <string, string>("System.Byte", "254"));
                dataTypesToInclude.Add(new KeyValuePair <string, string>("System.SByte", "125"));
                dataTypesToInclude.Add(new KeyValuePair <string, string>("System.Byte[]", "UVWZYZ));"));
                dataTypesToInclude.Add(new KeyValuePair <string, string>("System.Boolean", "true"));
                dataTypesToInclude.Add(new KeyValuePair <string, string>("System.Object", "This is an object: be careful!"));
                dataTypesToInclude.Add(new KeyValuePair <string, string>("System.DateTime", "5/31/2013 13:54:25"));
                dataTypesToInclude.Add(new KeyValuePair <string, string>("System.Guid", "58a4a08d-6101-4393-86dc-b2a8db46ec0f"));

                unitTestDt01.SetDataTypesToInclude(dataTypesToInclude);
                unitTestDt01.SetDataTypeOptions("System.String", false, true, 75);


                unitTestDt02.SetDataTypesToInclude(dataTypesToInclude);
                unitTestDt02.SetDataTypeOptions("System.String", false, true, 75000);

                //create the table

                _msg.Length = 0;
                _msg.Append("Creating tables");
                Program._messageLog.WriteLine(_msg.ToString());

                unitTestDt01.CreateTableFromTableColumns();
                unitTestDt02.CreateTableFromTableColumns();
                createScript = unitTestDt01.TableCreateScript;


                //import data to database
                _msg.Length = 0;
                _msg.Append("Importing data to TestTable01");
                Program._messageLog.WriteLine(_msg.ToString());

                unitTestDt01.ImportTableToDatabase();

                _msg.Length = 0;
                _msg.Append("Importing data to TestTable02");
                Program._messageLog.WriteLine(_msg.ToString());

                unitTestDt02.ImportTableToDatabase();


                //retrieve just created table and see what data types get assigned to data table columns

                Program._messageLog.WriteLine("\r\nRead row just created for " + tableName + "\r\n");

                sql.Length = 0;
                sql.Append("select * from ");
                sql.Append(tableName);

                DataTable testTab = db.RunQueryDataTable(sql.ToString(), CommandType.Text);

                for (int c = 0; c < testTab.Columns.Count; c++)
                {
                    _msg.Length = 0;
                    _msg.Append(testTab.Columns[c].ColumnName);
                    _msg.Append(", ");
                    _msg.Append(testTab.Columns[c].DataType.FullName);
                    _msg.Append(", ");
                    _msg.Append(testTab.Columns[c].MaxLength.ToString());
                    Program._messageLog.WriteLine(_msg.ToString());
                }
            }
            catch (System.Exception ex)
            {
                _msg.Length = 0;
                _msg.Append(AppGlobals.AppMessages.FormatErrorMessage(ex));
                Program._messageLog.WriteLine(_msg.ToString());
                AppMessages.DisplayErrorMessage(_msg.ToString(), _saveErrorMessagesToAppLog);
            }
            finally
            {
                if (db != null)
                {
                    if (db.IsConnected)
                    {
                        db.CloseConnection();
                    }
                    db = null;
                }
                _msg.Length = 0;
                _msg.Append("\r\n... CreateTableTest finished.");
                Program._messageLog.WriteLine(_msg.ToString());
            }
        }
Beispiel #4
0
        public static void ImportTableTest(MainForm frm)
        {
            string     dbPlatformDesc = DatabasePlatform.Unknown.ToString();
            PFDatabase db             = null;
            string     connStr        = string.Empty;
            string     nmSpace        = string.Empty;
            string     clsName        = string.Empty;
            string     dllPath        = string.Empty;
            Stopwatch  sw             = new Stopwatch();

            try
            {
                sw.Start();
                _msg.Length = 0;
                _msg.Append("ImportTableTest started ...\r\n");
                Program._messageLog.WriteLine(_msg.ToString());

                string[] parsedConnectionInfo = frm.cboConnectionString.Text.Split('|');
                dbPlatformDesc = parsedConnectionInfo[0];
                connStr        = parsedConnectionInfo[1];

                string   configValue  = AppConfig.GetStringValueFromConfigFile(dbPlatformDesc, string.Empty);
                string[] parsedConfig = configValue.Split('|');
                nmSpace = parsedConfig[0];
                clsName = parsedConfig[1];
                dllPath = parsedConfig[2];

                db = new PFDatabase(dbPlatformDesc, dllPath, nmSpace + "." + clsName);
                db.ConnectionString = connStr;
                db.OpenConnection();

                string tableName = frm.txtKeyValsTableName.Text;

                DataTable tab = frm.KeyValTable;
                tab.TableName = tableName;

                _msg.Length = 0;
                _msg.Append(tableName);
                if (db.TableExists(tableName))
                {
                    db.DropTable(tableName);
                    if (db.TableExists(tableName) == false)
                    {
                        _msg.Append(" dropped.");
                    }
                    else
                    {
                        _msg.Append(" drop failed.");
                    }
                }
                else
                {
                    _msg.Append(" does not exist.");
                }

                Program._messageLog.WriteLine("\r\nCreating a table in the database ...");

                //create the table
                db.CreateTable(tab);

                Program._messageLog.WriteLine("\r\nImporting data table to the database ...");

                int batchSize = Convert.ToInt32(frm.txtUpdateBatchSize.Text);
                if (batchSize == 1)
                {
                    db.ImportDataFromDataTable(tab);
                }
                else
                {
                    db.ImportDataFromDataTable(tab, batchSize);
                }

                _msg.Length = 0;
                _msg.Append("Table imported: ");
                _msg.Append(tab.TableName);
                Program._messageLog.WriteLine(_msg.ToString());
            }
            catch (System.Exception ex)
            {
                _msg.Length = 0;
                _msg.Append(AppGlobals.AppMessages.FormatErrorMessage(ex));
                Program._messageLog.WriteLine(_msg.ToString());
                AppMessages.DisplayErrorMessage(_msg.ToString(), _saveErrorMessagesToAppLog);
            }
            finally
            {
                if (sw.StopwatchIsRunning)
                {
                    sw.Stop();
                    sw.ShowMilliseconds = false;
                    _msg.Length         = 0;
                    _msg.Append("Elapsed Time: ");
                    _msg.Append(sw.FormattedElapsedTime);
                    Program._messageLog.WriteLine(_msg.ToString());
                    sw = null;
                }
                if (db != null)
                {
                    if (db.IsConnected)
                    {
                        db.CloseConnection();
                    }
                    db = null;
                }
                _msg.Length = 0;
                _msg.Append("\r\n... ImportTableTest finished.");
                Program._messageLog.WriteLine(_msg.ToString());
            }
        }
        private void CopyTables(PFDatabase sourceDb, PFDatabase destinationDb, bool replaceExistingTables, int batchSizeForDataWrites, string outputTablesSchema)
        {
            string    sourceQuery          = string.Empty;
            string    destinationTableName = string.Empty;
            int       numTableCreateErrors = 0;
            int       numImportErrors      = 0;
            Stopwatch sw = new Stopwatch();

            try
            {
                if (sourceDb.DbPlatform == DatabasePlatform.SQLServerCE35)
                {
                    sourceQuery = _sourceQuery.Replace("dbo.", string.Empty);
                }
                else
                {
                    sourceQuery = _sourceQuery;
                }

                _msg.Length = 0;
                _msg.Append("Output Database Platform: ");
                _msg.Append(destinationDb.DbPlatform.ToString());
                _msg.Append(Environment.NewLine);
                Program._messageLog.WriteLine(_msg.ToString());


                sw.Start();
                foreach (stTableInfo tabInfo in _tableInfo)
                {
                    //load data from source database into DataTable
                    string qry         = sourceQuery.Replace(@"<tablename>", tabInfo.tableName);
                    string configValue = AppConfig.GetStringValueFromConfigFile(destinationDb.DbPlatform.ToString() + "_" + tabInfo.tableName, string.Empty);
                    if (configValue.Length > 0)
                    {
                        qry = configValue;
                    }
                    sourceDb.SQLQuery    = qry;
                    sourceDb.CommandType = CommandType.Text;
                    DataTable dt = sourceDb.RunQueryDataTable();
                    _msg.Length = 0;
                    _msg.Append("Query text: ");
                    _msg.Append(sourceDb.SQLQuery);
                    _msg.Append(Environment.NewLine);
                    _msg.Append("Expected number of rows: ");
                    _msg.Append(tabInfo.numRows.ToString("#,##0"));
                    _msg.Append(Environment.NewLine);
                    _msg.Append("Number of rows returned: ");
                    _msg.Append(dt.Rows.Count.ToString("#,##0"));
                    Program._messageLog.WriteLine(_msg.ToString());

                    //import data from DataTable into destination database
                    if (outputTablesSchema.Trim().Length > 0)
                    {
                        destinationTableName = outputTablesSchema + "." + tabInfo.tableName;
                    }
                    else
                    {
                        destinationTableName = tabInfo.tableName;
                    }

                    //workaround to fix issue with Oracle limit on identifier lengths
                    if (destinationDb.DbPlatform == DatabasePlatform.OracleNative || destinationDb.DbPlatform == DatabasePlatform.MSOracle)
                    {
                        if (tabInfo.tableName == "FactAdditionalInternationalProductDescription")
                        {
                            if (outputTablesSchema.Trim().Length > 0)
                            {
                                destinationTableName = outputTablesSchema + "." + "FactProductDescriptionExt";
                            }
                            else
                            {
                                destinationTableName = "FactProductDescriptionExt";
                            }
                        }
                    }

                    dt.TableName = destinationTableName;

                    _msg.Length = 0;
                    _msg.Append(destinationTableName);
                    if (replaceExistingTables)
                    {
                        if (destinationDb.TableExists(destinationTableName))
                        {
                            destinationDb.DropTable(destinationTableName);
                            if (destinationDb.TableExists(destinationTableName) == false)
                            {
                                _msg.Append(" dropped.");
                            }
                            else
                            {
                                _msg.Append(" drop failed.");
                            }
                        }
                        else
                        {
                            _msg.Append(" does not exist.");
                        }
                    }
                    else
                    {
                        _msg.Append(": No check was made to determine if table already existed.");
                    }

                    Program._messageLog.WriteLine(_msg.ToString());

                    Program._messageLog.WriteLine("Creating table in the database ...");

                    //create the table
                    string createScript    = string.Empty;
                    string errorMessages   = string.Empty;
                    bool   createSucceeded = true;
                    createSucceeded = destinationDb.CreateTable(dt, out createScript, out errorMessages);

                    _msg.Length = 0;
                    _msg.Append("Create table result: ");
                    _msg.Append(createSucceeded.ToString());
                    _msg.Append(Environment.NewLine);
                    if (errorMessages.Trim().Length > 0)
                    {
                        _msg.Append("Error Messages: ");
                        _msg.Append(Environment.NewLine);
                        _msg.Append(errorMessages);
                        _msg.Append(Environment.NewLine);
                    }
                    _msg.Append("Create table statement: ");
                    _msg.Append(Environment.NewLine);
                    _msg.Append(createScript);
                    _msg.Append(Environment.NewLine);
                    Program._messageLog.WriteLine(_msg.ToString());

                    if (createSucceeded == false)
                    {
                        numTableCreateErrors++;
                    }
                    else
                    {
                        Program._messageLog.WriteLine("Importing data table to the database ...");
                        _msg.Length = 0;
                        _msg.Append("Data Write batch size: ");
                        _msg.Append(batchSizeForDataWrites.ToString());
                        Program._messageLog.WriteLine(_msg.ToString());

                        try
                        {
                            if (batchSizeForDataWrites == 1)
                            {
                                destinationDb.ImportDataFromDataTable(dt);
                            }
                            else
                            {
                                destinationDb.ImportDataFromDataTable(dt, batchSizeForDataWrites);
                            }

                            _msg.Length = 0;
                            _msg.Append("Table imported: ");
                            _msg.Append(dt.TableName);
                            _msg.Append(Environment.NewLine);
                            Program._messageLog.WriteLine(_msg.ToString());
                        }
                        catch (System.Exception ex)
                        {
                            numImportErrors++;
                            _msg.Length = 0;
                            _msg.Append("ERROR: Data import failed:");
                            _msg.Append(Environment.NewLine);
                            _msg.Append(AppGlobals.AppMessages.FormatErrorMessage(ex));
                            Program._messageLog.WriteLine(_msg.ToString());
                        }
                        finally
                        {
                            ;
                        }
                    }
                }
            }
            catch (System.Exception ex)
            {
                _msg.Length = 0;
                _msg.Append(AppGlobals.AppMessages.FormatErrorMessage(ex));
                Program._messageLog.WriteLine(_msg.ToString());
                AppMessages.DisplayErrorMessage(_msg.ToString(), _saveErrorMessagesToAppLog);
            }
            finally
            {
                _msg.Length = 0;
                if (numTableCreateErrors > 0)
                {
                    _msg.Append("One or more table create errors were reported: ");
                    _msg.Append(numTableCreateErrors.ToString());
                    _msg.Append(Environment.NewLine);
                }
                if (numImportErrors > 0)
                {
                    _msg.Append("One or more data import errors were reported: ");
                    _msg.Append(numImportErrors.ToString());
                    _msg.Append(Environment.NewLine);
                }
                if (_msg.Length > 0)
                {
                    Program._messageLog.WriteLine(_msg.ToString());
                    AppMessages.DisplayErrorMessage(_msg.ToString());
                }
            }
        }