SQL Tips: Using MERGE SQL statement in SQL 2008

... And still one more from the same generous source ... SQL Server 2008's new MERGE statement allows you to insert, update, or delete data based on certain join conditions in the same statement. MERGE SalesArchive AS SA USING (     SELECT         CustomerID,         LoadDate = MIN(CONVERT(VARCHAR(8), GETDATE(), 112)),         TotalSalesAmount = SUM(SaleAmount),         TotalSalesCount = COUNT(*)     FROM SalesFeed     GROUP BY CustomerID ) AS SalesFeedCTE (CustomerID, LoadDate, TotalSalesAmount, TotalSalesCount) ON (SA.CustomerID = SalesFeedCTE.CustomerID AND SA.SalesDate = SalesFeedCTE.LoadDate ) WHEN NOT MATCHED THEN INSERT (CustomerID, SalesDate, TotalSalesAmount, TotalSalesCount, CreationDate, UpdatedDate)     VALUES( SalesFeedCTE.CustomerID, SalesFeedCTE.LoadDate, SalesFeedCTE.TotalSalesAmount, SalesFeedCTE.TotalSalesCount, GETDATE(), GETDATE()) WHEN MATCHED THEN UPDATE     SET SA.TotalSalesAmount = SA.TotalSalesAmount + SalesFeedCTE.TotalSalesAmount,             SA.TotalSalesCount = SA.TotalSalesCount + SalesFeedCTE.TotalSalesCount,             SA.UpdatedDate = GETDATE(); Also, there is a new ability to pass a table variable to the stored procedures: DECLARE @MyTable TABLE (Col1 INT, Col2 Varchar(100)) EXEC MySP @Par1 = @MyTable OUTPUT

SQL Tips: Using Regular Expressions in SQL Query

One more; courtesy of our greate DBA - K. Fridman: DECLARE @RegExp VARCHAR(100) SET @RegExp = '%[^a-zA-Z0-9._-]%' SELECT * FROM Clients WHERE PATINDEX(@RegExp, UserName) > 0

SQL Tips: Search String In All SP's

This is nice one; courtesy of our great DBA - Kostya Fridman: SELECT name, OBJECT_DEFINITION(object_id) FROM sys.procedures WHERE OBJECT_DEFINITION(object_id) LIKE '%Search String%'