示例#1
0
		private DataTable GetNonUniqueIndexes(string tableName)
		{
			StringBuilder	sql			= new StringBuilder();
			StringBuilder	where		= new StringBuilder();
			FbCommand		select		= new FbCommand(this.connection);
			ISQLCursor		cursor		= null;
			DataTable		schema		= BdpMetaDataHelper.GetIndices();
			short			resultCols	= 0;

			sql.Append(
				@"SELECT " +
				"idx.rdb$relation_name AS TableName, " +
				"idx.rdb$index_name AS IndexName, " +
				"seg.rdb$field_name AS ColumnName, " +
				"seg.rdb$field_position AS FieldPosition, " +
				"idx.rdb$index_type AS IndexType, " +
				"idx.rdb$index_inactive AS InactiveIndex, " +
				"idx.rdb$unique_flag AS IsUnique, " +
				"idx.rdb$description AS Description " +
				"FROM " +
				"rdb$indices idx " +
				"left join rdb$index_segments seg ON idx.rdb$index_name = seg.rdb$index_name ");

			if (tableName != null && tableName.Length > 0)
			{
				where.AppendFormat("rdb$relation_name = '{0}' AND idx.rdb$unique_flag IS NULL", tableName);
			}

			if (where.Length > 0)
			{
				sql.AppendFormat(" WHERE {0} ", where.ToString());
			}

			sql.Append(" ORDER BY idx.rdb$relation_name, idx.rdb$index_name, seg.rdb$field_position");

			/*
			RecNo
			CatalogName
			SchemaName
			TableName
			IndexName
			ColumnName
			ColumnPosition
			PKeyName
			IndexType
			SortOrder
			Filter
			*/		

			// Prepare and execute the command
			select.Prepare(sql.ToString(), 0);
			select.Execute(out cursor, ref resultCols);

			int recno = 0;

			while (cursor.Next() != -1)
			{
				DataRow row = schema.NewRow();

				row["Recno"]			= recno++;
				row["CatalogName"]		= null;
				row["SchemaName"]		= null;
				row["TableName"]		= ((FbCursor)cursor).GetValue(0).ToString().Trim();
				row["IndexName"]		= ((FbCursor)cursor).GetValue(1).ToString().Trim();
				row["ColumnName"]		= ((FbCursor)cursor).GetValue(2).ToString().Trim();
				row["ColumnPosition"]	= ((FbCursor)cursor).GetValue(3);
				row["PKeyName"]			= String.Empty;
				row["IndexType"]		= IndexType.NonUnique;
				row["SortOrder"]		= String.Empty;
				row["Filter"]			= String.Empty;

				schema.Rows.Add(row);
			}

			cursor.Release();
			select.Release();

			return schema;
		}
示例#2
0
		public FbCursor(FbCommand command)
		{
			this.command	= command;
			this.fields		= this.command.GetFieldsDescriptor();
		}
示例#3
0
		public DataTable GetProcedureParams(string spName, string paramName)
		{
			StringBuilder	sql			= new StringBuilder();
			StringBuilder	where		= new StringBuilder();
			FbCommand		select		= new FbCommand(this.connection);
			ISQLCursor		cursor		= null;
			short			resultCols	= 0;
            DataTable       schema      = BdpMetaDataHelper.GetProcedureParams();

			sql.Append(
				@"SELECT " +
				"pp.rdb$procedure_name AS ProcName, " +
				"pp.rdb$parameter_name AS ParamName, " +
				"pp.rdb$parameter_type AS ParamType, " +
				"pp.rdb$parameter_number AS ParamPosition, " +
				"fld.rdb$field_type AS ParamDataType, " +
				"fld.rdb$field_sub_type AS ParamSubType, " +
				"fld.rdb$field_length AS ParamSize, " +
				"fld.rdb$field_precision AS ParamPrecision, " +
				"fld.rdb$field_scale AS ParamScale " +
				"FROM " +
				"rdb$procedure_parameters pp " +
				"left join rdb$fields fld ON pp.rdb$field_source = fld.rdb$field_name " +
				"left join rdb$character_sets cs ON cs.rdb$character_set_id = fld.rdb$character_set_id " +
				"left join rdb$collations coll ON (coll.rdb$collation_id = fld.rdb$collation_id AND coll.rdb$character_set_id = fld.rdb$character_set_id) ");

			if (spName != null && spName.Length > 0)
			{
				where.AppendFormat("pp.rdb$procedure_name = '{0}'", spName);
			}

			if (paramName != null && paramName.Length > 0)
			{
				if (where.Length > 0)
				{
					where.Append(" AND ");
				}

				where.AppendFormat("pp.rdb$parameter_name = '{0}'", paramName);
			}

			if (where.Length > 0)
			{
				sql.AppendFormat(" WHERE {0} ", where.ToString());
			}

			// Prepare and execute the command
			select.Prepare(sql.ToString(), 0);
			select.Execute(out cursor, ref resultCols);

			int recno = 0;

			while (cursor.Next() != -1)
			{
				DataRow row = schema.NewRow();

				int blrType		= 0;
				int subType		= 0;
				int length		= 0;
				int precision	= 0;
				int scale		= 0;
				int direction	= 0;

				if (((FbCursor)cursor).GetValue(4) != null &&
					((FbCursor)cursor).GetValue(4) != DBNull.Value)
				{
					blrType = Convert.ToInt32(((FbCursor)cursor).GetValue(4));
				}
				if (((FbCursor)cursor).GetValue(5) != null &&
					((FbCursor)cursor).GetValue(5) != DBNull.Value)
				{
					subType = Convert.ToInt32(((FbCursor)cursor).GetValue(5));
				}
				if (((FbCursor)cursor).GetValue(6) != null &&
					((FbCursor)cursor).GetValue(6) != DBNull.Value)
				{
					length = Convert.ToInt32(((FbCursor)cursor).GetValue(6));
				}
				if (((FbCursor)cursor).GetValue(7) != null &&
					((FbCursor)cursor).GetValue(7) != DBNull.Value)
				{
					precision = Convert.ToInt32(((FbCursor)cursor).GetValue(7));
				}
				if (((FbCursor)cursor).GetValue(8) != null &&
					((FbCursor)cursor).GetValue(8) != DBNull.Value)
				{
					scale = Convert.ToInt32(((FbCursor)cursor).GetValue(8));
				}
				if (((FbCursor)cursor).GetValue(2) != null &&
					((FbCursor)cursor).GetValue(2) != DBNull.Value)
				{
					direction = Convert.ToInt16(((FbCursor)cursor).GetValue(2));
				}

				DbDataType paramDbType = TypeHelper.GetDbDataType(blrType, subType, scale);

				row["Recno"]			= recno++;
				row["CatalogName"]		= null;
				row["SchemaName"]		= null;
				row["ProcName"]			= ((FbCursor)cursor).GetValue(0).ToString().Trim();
				row["ParamName"]		= ((FbCursor)cursor).GetValue(1).ToString().Trim();
				if (direction == 0)
				{
					row["ParamType"] = ParameterDirection.Input;
				}
				else if (direction == 1)
				{
					row["ParamType"] = ParameterDirection.Output;
				}
				row["ParamPosition"]	= Convert.ToInt16(((FbCursor)cursor).GetValue(3));
				row["ParamDataType"]	= BdpTypeHelper.GetBdpType(paramDbType);
				row["ParamSubType"]		= BdpTypeHelper.GetBdpSubType(paramDbType);
				row["ParamTypeName"]	= TypeHelper.GetDataTypeName(paramDbType);
				row["ParamLength"]		= length;
				row["ParamPrecision"]	= precision;
				row["ParamScale"]		= Convert.ToInt16(scale);
				row["ParamNullable"]	= true;

				schema.Rows.Add(row);
			}

			cursor.Release();
			select.Release();

			return schema;
		}
示例#4
0
		public DataTable GetProcedures(string spName, ProcedureType procType)
		{
			StringBuilder	sql			= new StringBuilder();
			StringBuilder	where		= new StringBuilder();
			FbCommand		select		= new FbCommand(this.connection);
			ISQLCursor		cursor		= null;
            DataTable		schema		= BdpMetaDataHelper.GetProcedures();
			short			resultCols	= 0;

			sql.Append(
				@"SELECT " +
				"rdb$procedure_name AS ProcName, " +
				"rdb$procedure_inputs AS Inputs, " +
				"rdb$procedure_outputs AS Outputs " +
				"FROM " +
				"rdb$procedures");

			if (spName != null && spName.Length > 0)
			{
				where.AppendFormat("rdb$procedure_name = '{0}'", spName);
			}

			if (where.Length > 0)
			{
				sql.AppendFormat(" WHERE {0} ", where.ToString());
			}

			sql.Append(" ORDER BY rdb$procedure_name");

			// Prepare and execute the command
			select.Prepare(sql.ToString(), 0);
			select.Execute(out cursor, ref resultCols);

			int recno = 0;

			while (cursor.Next() != -1)
			{
				DataRow row = schema.NewRow();

				row["Recno"]		= recno++;
				row["CatalogName"]	= null;
				row["SchemaName"]	= null;
				row["ProcName"]		= ((FbCursor)cursor).GetValue(0).ToString().Trim();
				row["ProcType"]		= procType;
				row["InParams"]		= ((FbCursor)cursor).GetValue(1);
				row["OutParams"]	= ((FbCursor)cursor).GetValue(2);
				
				schema.Rows.Add(row);
			}

			cursor.Release();
			select.Release();

			return schema;
		}
示例#5
0
		public DataTable GetColumns(
			string tableName, 
			string columnName, 
			ColumnType columnType)
		{
			StringBuilder	sql			= new StringBuilder();
			StringBuilder	where		= new StringBuilder();
			FbCommand		select		= new FbCommand(this.connection);
			ISQLCursor		cursor		= null;
            DataTable		schema		= BdpMetaDataHelper.GetColumns();
			short			resultCols	= 0;

			sql.Append(
				@"SELECT " +
				"rfr.rdb$relation_name AS TableName, " +
				"rfr.rdb$field_name AS ColumName, " +
				"rfr.rdb$field_position AS ColumnPosition, " +
				"fld.rdb$field_type AS ColumnDataType, " +
				"fld.rdb$field_sub_type AS ColumnSubType, " +
				"fld.rdb$field_length AS ColumnSize, " +
				"fld.rdb$field_precision AS ColumnPrecision, " +
				"fld.rdb$field_scale AS ColumnScale, " +
				"coalesce(fld.rdb$null_flag, rfr.rdb$null_flag) AS ColumnNullable " +
				"FROM " +
				"rdb$relation_fields rfr " +
				"left join rdb$fields fld ON rfr.rdb$field_source = fld.rdb$field_name ");

			if (tableName != null && tableName.Length > 0)
			{
				where.AppendFormat("rfr.rdb$relation_name = '{0}'", tableName);
			}

			if (columnName != null && columnName.Length > 0)
			{
				if (where.Length > 0)
				{
					where.Append(" AND ");
				}

				where.AppendFormat("rfr.rdb$field_name = '{0}'", columnName);
			}

			if (where.Length > 0)
			{
				sql.AppendFormat(" WHERE {0} ", where.ToString());
			}

			sql.Append(" ORDER BY rfr.rdb$relation_name, rfr.rdb$field_position");

			// Prepare and execute the command
			select.Prepare(sql.ToString(), 0);
			select.Execute(out cursor, ref resultCols);

			int recno = 0;

			while (cursor.Next() != -1)
			{
				DataRow row = schema.NewRow();

				row["Recno"]			= recno++;
				row["CatalogName"]		= null;
				row["SchemaName"]		= null;
				row["TableName"]		= ((FbCursor)cursor).GetValue(0).ToString().Trim();
				row["ColumnName"]		= ((FbCursor)cursor).GetValue(1).ToString().Trim();
				row["ColumnPosition"]	= ((FbCursor)cursor).GetValue(2);
				row["ColumnType"]		= columnType;
				row["ColumnDataType"]	= ((FbCursor)cursor).GetValue(3);
				row["ColumnTypeName"]	= String.Empty;
				row["ColumnSubtype"]	= ((FbCursor)cursor).GetValue(4);
				row["ColumnLength"]		= ((FbCursor)cursor).GetValue(5);
				row["ColumnPrecision"]	= ((FbCursor)cursor).GetValue(6);
				row["ColumnScale"]		= ((FbCursor)cursor).GetValue(7);

				if (((FbCursor)cursor).GetValue(8) == DBNull.Value)
				{
					row["ColumnNullable"] = true;
				}
				else
				{
					row["ColumnNullable"] = false;
				}

				schema.Rows.Add(row);
			}

			cursor.Release();
			select.Release();

			return schema;
		}
示例#6
0
		public DataTable GetTables(string tableName, TableType tableType)
		{
			StringBuilder	sql			= new StringBuilder();
			StringBuilder	where		= new StringBuilder();
			FbCommand		select		= new FbCommand(this.connection);
			ISQLCursor		cursor		= null;
            DataTable		schema		= BdpMetaDataHelper.GetTables();
			short			resultCols	= 0;

			sql.Append(
				@"SELECT " +
				"rdb$relation_name AS TableName "	+
				"FROM " +
				"rdb$relations");
			
			if (tableName != null && tableName.Length > 0)
			{
				where.AppendFormat("rdb$relation_name = '{0}'", tableName);
			}

			if (where.Length > 0)
			{
				where.Append(" AND ");
			}

			switch (tableType)
			{
				case TableType.SystemTable:
					where.Append("rdb$view_source IS null AND rdb$system_flag = 1");
					break;

				case TableType.View:
					where.Append("rdb$view_source IS NOT null AND rdb$system_flag = 0");
					break;

				case TableType.Table:
				default:
					where.Append("rdb$view_source IS NULL AND rdb$system_flag = 0");
					break;
			}

			if (where.Length > 0)
			{
				sql.AppendFormat(" WHERE {0} ", where.ToString());
			}

			sql.Append(" ORDER BY rdb$system_flag, rdb$owner_name, rdb$relation_name");

			// Prepare and execute the command
			select.Prepare(sql.ToString(), 0);
			select.Execute(out cursor, ref resultCols);

			int recno = 0;

			while (cursor.Next() != -1)
			{
				DataRow row = schema.NewRow();

				row["Recno"]		= recno++;
				row["CatalogName"]	= null;
				row["SchemaName"]	= null;
				row["TableName"]	= ((FbCursor)cursor).GetValue(0).ToString().Trim();
				row["TableType"]	= tableType;

				schema.Rows.Add(row);
			}

			cursor.Release();
			select.Release();

			return schema;
		}
示例#7
0
		private void ExecuteDDL(string sql)
		{
			FbCommand command = new FbCommand(this.connection);
			ISQLCursor cursor = null;
			short numCols = 0;

			command.Prepare(sql, 0);
			command.Execute(out cursor, ref numCols);
			command.Release();
		}