@@rowcount can be used to verify the success of selected operations : rowcount « System Settings « SQL Server / T-SQL Tutorial

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SQL Server / T-SQL Tutorial » System Settings » rowcount

26. 27. 6. @@rowcount can be used to verify the success of selected operations


After each Transact-SQL statement, the server sets the value of this variable to the total 

number of records affected by it. 



9>      select 1+2

10>      GO



-----------

          3



(1 rows affected)

1>

2>      if @@rowcount = 0

3>         Print "No rows were copied!"

4> GO

1>

26. 27. rowcount
	26. 27. 1.	Using the SET ROWCOUNT Option
	26. 27. 2.	Updating an end user's expiration date.
	26. 27. 3.	adds the account column to the authors table and creates the new bank and brokerage tables.
	26. 27. 4.	if @@ROWCOUNT = 0, return
	26. 27. 5.	if @@ROWCOUNT > 1, rollback
	26. 27. 6.	@@rowcount can be used to verify the success of selected operations
	26. 27. 7.	EXEC and @@ROWCOUNT

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