Esempio n. 1
0
        public void CreatePrimaryKey(IndexMetadata iTableIndex)
        {
            try
            {
                StringBuilder loSqlStatement = new StringBuilder();
                string        loIndexName    = iTableIndex.Name; // "PK_" + iTableIndex.ParentTableDef.Name

                loSqlStatement.Append("ALTER TABLE [" + iTableIndex.ParentTable.Name + "] ADD CONSTRAINT " + loIndexName + " PRIMARY KEY (");
                // now add all the column names
                for (int loNdx = 0; loNdx < iTableIndex.GetIndexFieldCnt(); loNdx++)
                {
                    // ask MetadataMgr for the index columns for this table that include this column at this position
                    loSqlStatement.Append(iTableIndex.ColumnNames(loNdx) + ",");
                }
                // drop the last comma
                loSqlStatement.Remove(loSqlStatement.Length - 1, 1);
                // add a closing parenthesis
                loSqlStatement.Append(')');
                // now submit the statement
                _DBAccess.ExecuteNonQuery(loSqlStatement.ToString(), new Dictionary <string, object>(), true);

                LogMessage(TraceLevel.Verbose, "  Created Primary Key '" + loIndexName + "'", System.Reflection.MethodBase.GetCurrentMethod().DeclaringType.Name + "." + System.Reflection.MethodBase.GetCurrentMethod().Name, System.Threading.Thread.CurrentThread.ManagedThreadId);
            }
            catch (Exception ex)
            {
                LogMessage(TraceLevel.Error, "  Create Primary Key failed: " + ex.ToString(), System.Reflection.MethodBase.GetCurrentMethod().DeclaringType.Name + "." + System.Reflection.MethodBase.GetCurrentMethod().Name, System.Threading.Thread.CurrentThread.ManagedThreadId);
            }
        }
Esempio n. 2
0
 public bool CheckTableIndex(IndexMetadata iTableIndex)
 {
     if (IndexExists(iTableIndex.Name, iTableIndex.ParentTable.Name) == false)
     {
         return(false);
     }
     else
     {
         LogMessage(TraceLevel.Verbose, "  Verified Index '" + iTableIndex.Name + "' already exists.", System.Reflection.MethodBase.GetCurrentMethod().DeclaringType.Name + "." + System.Reflection.MethodBase.GetCurrentMethod().Name, System.Threading.Thread.CurrentThread.ManagedThreadId);
         return(true);
     }
 }
Esempio n. 3
0
        public void CreateTableIndex(IndexMetadata iTableIndex)
        {
            string loIndexName = iTableIndex.Name;

            if (iTableIndex.IsPrimaryKey)
            {
                CreatePrimaryKey(iTableIndex);
                return;
            }

            // We are creating index because it doesn't exist, not because it might be different, so there is no existing index to drop...

            /*
             * // drop this index if it exists
             * try
             * {
             *  _DBAccess.ExecuteNonQuery("DROP INDEX " + loIndexName + " ON [" + iTableIndex.ParentTableDef.Name + "]", new Dictionary<string, object>(), true);
             * }
             * catch { }
             */

            StringBuilder loSqlStatement = new StringBuilder();

            loSqlStatement.Append("CREATE ");
            if (iTableIndex.IsUniqueConstraint)
            {
                loSqlStatement.Append("UNIQUE ");
            }

            loSqlStatement.Append("INDEX " + loIndexName + " ON [" + iTableIndex.ParentTable.Name + "] (");
            // now add all the column names
            for (int loNdx = 0; loNdx < iTableIndex.GetIndexFieldCnt(); loNdx++)
            {
                // ask MetadataMgr for the index columns for this table that include this column at this position
                loSqlStatement.Append(iTableIndex.ColumnNames(loNdx) + ",");
            }
            // drop the last comma
            loSqlStatement.Remove(loSqlStatement.Length - 1, 1);
            // add a closing parenthesis
            loSqlStatement.Append(')');
            // now submit the statement
            try
            {
                _DBAccess.ExecuteNonQuery(loSqlStatement.ToString(), new Dictionary <string, object>(), true);
                LogMessage(TraceLevel.Verbose, "  Created Index '" + iTableIndex.Name + "'", System.Reflection.MethodBase.GetCurrentMethod().DeclaringType.Name + "." + System.Reflection.MethodBase.GetCurrentMethod().Name, System.Threading.Thread.CurrentThread.ManagedThreadId);
            }
            catch (Exception ex)
            {
                LogMessage(TraceLevel.Error, "  Create index failed: " + ex.ToString(), System.Reflection.MethodBase.GetCurrentMethod().DeclaringType.Name + "." + System.Reflection.MethodBase.GetCurrentMethod().Name, System.Threading.Thread.CurrentThread.ManagedThreadId);
            }
        }