Using TRY - CATCH to Rollback a Transaction - SQL Server

http://www.eggheadcafe.com/tutorials/aspnet/6a8ef7d5-840e-4629-b53a-1a40e7db601f/using-try--catch-to-rollback-a-transaction--sql-server.aspx


BEGIN

BEGIN TRY --Start the Try Block..

BEGIN TRANSACTION -- Start the transaction..

UPDATE MyChecking SET Amount = Amount - @Amount

WHERE AccountNum = @AccountNum

UPDATE MySavings SET Amount = Amount + @Amount

WHERE AccountNum = @AccountNum

COMMIT TRAN -- Transaction Success!

END TRY
BEGIN CATCH

ROLLBACK TRAN --RollBack in case of Error

-- you can Raise ERROR with RAISEERROR() Statement including the details of the exception

RAISERROR(ERROR_MESSAGE(), ERROR_SEVERITY(), 1)

END CATCH

END