private static void AnalyzeUpdateStmt(TUpdateSqlStatement stmt) { Console.WriteLine(string.Format("Table name: {0}", stmt.TargetTable.ToString())); Console.WriteLine("set clause:"); for (int i = 0; i < stmt.ResultColumnList.Count; i++) { TResultColumn resultColumn = stmt.ResultColumnList.getResultColumn(i); TExpression expression = resultColumn.Expr; Console.WriteLine(string.Format("\tColumn: {0}\tvalue: {1}", expression.LeftOperand.ToString(), expression.RightOperand.ToString())); } if (stmt.WhereClause != null) { Console.WriteLine("Where clause: {0}", stmt.WhereClause.Condition.ToString()); } }
public virtual void testRemoveSetClauseInUpdate() { parser.sqltext = "UPDATE BLA SET A=2, B=3 WHERE X=5"; Assert.IsTrue(parser.parse() == 0); TUpdateSqlStatement updateSqlStatement = (TUpdateSqlStatement)parser.sqlstatements.get(0); TResultColumnList setClauses = updateSqlStatement.ResultColumnList; setClauses.removeElementAt(0); // System.out.println(scriptGenerator.generateScript(updateSqlStatement, true)); Assert.IsTrue(testScriptGenerator.verifyScript(EDbVendor.dbvoracle , updateSqlStatement.ToScript() , "UPDATE bla\n" + "SET b=3\n" + "WHERE x = 5" )); }
private void removeObjectFromSetClause(TCustomSqlStatement stmt, TObjectName column) { if (stmt is TUpdateSqlStatement) { TUpdateSqlStatement update = (TUpdateSqlStatement)stmt; if (update.ResultColumnList != null) { for (int i = 0; i < update.ResultColumnList.Count; i++) { TResultColumn resultcolumn = update.ResultColumnList.getResultColumn(i); if (resultcolumn.startToken.posinlist <= column.startToken.posinlist && resultcolumn.endToken.posinlist >= column.endToken.posinlist) { update.ResultColumnList.removeResultColumn(i); break; } } } } }
public virtual void testOracleBindVariable() { parser.sqltext = "UPDATE Art SET Desc=:Desc WHERE ID=:ID"; Assert.IsTrue(parser.parse() == 0); TUpdateSqlStatement updateStmt = (TUpdateSqlStatement)parser.sqlstatements.get(0); TResultColumn setClause = updateStmt.ResultColumnList.getResultColumn(0); TExpression assignment = setClause.Expr; // create a vairable TObjectName bindVar = new TObjectName(new TSourceToken(":bindVar"), EDbObjectType.variable); TExpression newVariable = new TExpression(EExpressionType.simple_object_name_t); newVariable.ObjectOperand = bindVar; //set new varaible assignment.RightOperand = newVariable; //Console.WriteLine(updateStmt.ToScript()); Assert.IsTrue(testScriptGenerator.verifyScript(EDbVendor.dbvoracle , updateStmt.ToScript() , "UPDATE Art SET Desc=:bindVar WHERE ID=:ID" )); }
private void analyzeSqlStatement(procedureInfo procedureInfo, TCustomSqlStatement stmt) { if (stmt is TMssqlBlock) { TMssqlBlock block = (TMssqlBlock)stmt; if (block.BodyStatements != null) { for (int i = 0; i < block.BodyStatements.size(); i++) { analyzeSqlStatement(procedureInfo, block.BodyStatements.get(i)); } } } else if (stmt is TMssqlIfElse) { TMssqlIfElse ifElse = (TMssqlIfElse)stmt; if (ifElse.Stmt != null) { analyzeSqlStatement(procedureInfo, ifElse.Stmt); } if (ifElse.Condition != null) { } if (ifElse.ElseStmt != null) { analyzeSqlStatement(procedureInfo, ifElse.ElseStmt); } } else if (stmt is TMssqlDeclare) { TMssqlDeclare declareStmt = (TMssqlDeclare)stmt; if (declareStmt.Subquery != null && declareStmt.Subquery.ToString().Trim().Length > 0) { analyzeSqlStatement(procedureInfo, declareStmt.Subquery); } } else if (stmt is TMssqlExecute && ((TMssqlExecute)stmt).ModuleName != null) { TMssqlExecute executeStmt = (TMssqlExecute)stmt; operateInfo operateInfo = new operateInfo(); operateInfo.objectType = objectType.SP; operateInfo.objectUsed = executeStmt.ModuleName.ToString().Trim(); operateInfo.usageType = usageType.Exec; procedureInfo.operates.Add(operateInfo); } else if (stmt is TCreateTableSqlStatement) { TCreateTableSqlStatement createStmt = (TCreateTableSqlStatement)stmt; TColumnDefinitionList columns = createStmt.ColumnList; operateInfo operateInfo = new operateInfo(); operateInfo.objectType = objectType.Table; operateInfo.objectUsed = createStmt.TargetTable.ToString().Trim(); operateInfo.usageType = usageType.Create; for (int i = 0; i < columns.size(); i++) { TColumnDefinition column = columns.getColumn(i); operateInfo.columns.Add(column.ColumnName.ToString()); } procedureInfo.operates.Add(operateInfo); } else if (stmt is TInsertSqlStatement) { TInsertSqlStatement insertStmt = (TInsertSqlStatement)stmt; TObjectNameList columns = insertStmt.ColumnList; operateInfo operateInfo = new operateInfo(); operateInfo.objectType = objectType.Table; operateInfo.objectUsed = insertStmt.TargetTable.ToString().Trim(); operateInfo.usageType = usageType.Insert; if (columns != null) { for (int i = 0; i < columns.size(); i++) { TObjectName column = columns.getObjectName(i); operateInfo.columns.Add(column.ToString()); } } procedureInfo.operates.Add(operateInfo); // if (insertStmt.ExecStmt != null) // { // analyzeSqlStatement(procedureInfo, insertStmt.ExecStmt); // } } else if (stmt is TUpdateSqlStatement) { TUpdateSqlStatement updateStmt = (TUpdateSqlStatement)stmt; TResultColumnList columns = updateStmt.ResultColumnList; operateInfo operateInfo = new operateInfo(); operateInfo.objectType = objectType.Table; operateInfo.objectUsed = updateStmt.TargetTable.ToString().Trim(); operateInfo.usageType = usageType.Update; for (int i = 0; i < columns.size(); i++) { TResultColumn column = columns.getResultColumn(i); operateInfo.columns.Add(column.Expr.LeftOperand.ToString()); } procedureInfo.operates.Add(operateInfo); } else if (stmt is TDeleteSqlStatement) { TDeleteSqlStatement deleteStmt = (TDeleteSqlStatement)stmt; operateInfo operateInfo = new operateInfo(); operateInfo.objectType = objectType.Table; operateInfo.objectUsed = deleteStmt.TargetTable.ToString().Trim(); operateInfo.usageType = usageType.Delete; procedureInfo.operates.Add(operateInfo); } else if (stmt is TMssqlDropTable) { TMssqlDropTable dropStmt = (TMssqlDropTable)stmt; operateInfo operateInfo = new operateInfo(); operateInfo.objectType = objectType.Table; operateInfo.objectUsed = dropStmt.TargetTable.ToString().Trim(); operateInfo.usageType = usageType.Drop; procedureInfo.operates.Add(operateInfo); } else if (stmt is TDropTableSqlStatement) { TDropTableSqlStatement dropStmt = (TDropTableSqlStatement)stmt; operateInfo operateInfo = new operateInfo(); operateInfo.objectType = objectType.Table; operateInfo.objectUsed = dropStmt.TableName.ToString().Trim(); operateInfo.usageType = usageType.Drop; procedureInfo.operates.Add(operateInfo); } else if (stmt is TSelectSqlStatement) { TSelectSqlStatement selectStmt = (TSelectSqlStatement)stmt; List <columnInfo> columnInfos = new List <columnInfo>(); List <tableInfo> tableInfos = new List <tableInfo>(); tableTokensInStmt(columnInfos, tableInfos, selectStmt); LinkedHashMap <tableInfo, List <columnInfo> > columnMap = new LinkedHashMap <tableInfo, List <columnInfo> >(); for (int i = 0; i < columnInfos.Count; i++) { columnInfo column = columnInfos[i]; tableInfo table = column.table; if (columnMap.ContainsKey(table)) { List <columnInfo> columns = (List <columnInfo>)columnMap[table]; bool flag = false; foreach (columnInfo temp in columns) { if (temp.ToString().Equals(column.ToString(), StringComparison.CurrentCultureIgnoreCase)) { flag = true; break; } } if (!flag) { columns.Add(column); } } else { List <columnInfo> columns = new List <columnInfo>(); columnMap[table] = columns; columns.Add(column); } } for (int i = 0; i < tableInfos.Count; i++) { operateInfo operateInfo = new operateInfo(); operateInfo.objectType = objectType.Table; operateInfo.objectUsed = tableInfos[i].ToString(); if (tableInfos[i].stmt is TSelectSqlStatement && ((TSelectSqlStatement)tableInfos[i].stmt).IntoClause != null) { operateInfo.usageType = usageType.Insert; } else { operateInfo.usageType = usageType.Read; } if (columnMap.ContainsKey(tableInfos[i])) { foreach (columnInfo column in (List <columnInfo>)columnMap[tableInfos[i]]) { operateInfo.columns.Add(column.ToString()); operateInfo.objectUsed = column.table.ToString(); } } procedureInfo.operates.Add(operateInfo); } } }
public static void doIt() { TGSqlParser sqlparser = new TGSqlParser(EDbVendor.dbvmssql); sqlparser.sqltext = "select employee_id,last_name,sal\n" + "from employees\n" + "where department_id = 90\n" + "group by employee_id having sal>10\n" + "order by last_name;"; sqlparser.parse(); TSelectSqlStatement select = (TSelectSqlStatement)sqlparser.sqlstatements.get(0); gudusoft.gsqlparser.nodes.TTable table = select.tables.getTable(0); TObjectName o; Console.WriteLine("Select statement, find out what clause a TObjectName belongs to:"); for (int i = 0; i < table.LinkedColumns.size(); i++) { o = table.LinkedColumns.getObjectName(i); Console.WriteLine(o.ToString() + "\t\t\tlocation:" + o.Location); } sqlparser.sqltext = "insert into emp e1 (e1.lastname,job) values('scott',10);"; sqlparser.parse(); TInsertSqlStatement insert = (TInsertSqlStatement)sqlparser.sqlstatements.get(0); table = insert.tables.getTable(0); Console.WriteLine("\n\nInsert statement, find out what clause a TObjectName belongs to:"); for (int i = 0; i < table.LinkedColumns.size(); i++) { o = table.LinkedColumns.getObjectName(i); Console.WriteLine(o.ToString() + "\t\t\tlocation:" + o.Location); } sqlparser.sqltext = "update employees\n" + "set department_ID = 70\n" + "where employee_id = 113;"; sqlparser.parse(); TUpdateSqlStatement update = (TUpdateSqlStatement)sqlparser.sqlstatements.get(0); table = update.tables.getTable(0); Console.WriteLine("\n\nUpdate statement, find out what clause a TObjectName belongs to:"); for (int i = 0; i < table.LinkedColumns.size(); i++) { o = table.LinkedColumns.getObjectName(i); Console.WriteLine(o.ToString() + "\t\t\tlocation:" + o.Location); } sqlparser.sqltext = "delete from employees E\n" + "where employee_id = \n" + "(select employee_sal\n" + "from emp_history\n" + "where employee_id = e.employee_id);"; sqlparser.parse(); TDeleteSqlStatement delete = (TDeleteSqlStatement)sqlparser.sqlstatements.get(0); table = delete.tables.getTable(0); Console.WriteLine("\n\nDelete statement, find out what clause a TObjectName belongs to:"); for (int i = 0; i < table.LinkedColumns.size(); i++) { o = table.LinkedColumns.getObjectName(i); Console.WriteLine(o.ToString() + "\t\t\tlocation:" + o.Location); } // subquery in where clause select = (TSelectSqlStatement)delete.Statements.get(0); gudusoft.gsqlparser.nodes.TTable table1 = select.tables.getTable(0); Console.WriteLine("\nSubquery in delete statement, find out what clause a TObjectName belongs to:"); for (int i = 0; i < table1.LinkedColumns.size(); i++) { o = table1.LinkedColumns.getObjectName(i); Console.WriteLine(o.ToString() + "\t\t\tlocation:" + o.Location); } }