11/3/2015 · –> Previously with ALTER statement, to DROP any item you had to check the existence of it with a separate IF EXISTS() statement, and then DROP it within the IF condition, like: IF EXISTS (select * from INFORMATION_SCHEMA.COLUMNS WHERE COLUMN_NAME = ‘vCustomerName’) BEGIN ALTER TABLE Sales.SalesOrder_json DROP COLUMN vCustomerName; END GO, Warning: the ‘check if the stored procedure exists ‘ function will always return ‘ exists ‘, no matter what function name you put in (for T-SQL). It is an unreliable check. – Ryan Battistone Sep 11 ’18 at 21:36, 11/3/2015 · IF EXISTS (select * from INFORMATION_SCHEMA.ROUTINES WHERE ROUTINE_NAME = ‘PersonList_json’) BEGIN DROP PROCEDURE Person.PersonList_json END GO But if you check the ALTER statement with the IF EXISTS option at the top it is doing 7 ALTER, 1/22/2017 · The CREATE OR ALTER statement works with specific types of database objects such as stored procedures, functions, triggers and views. With this new CREATE OR ALTER statement, you do not need to add extra code to your script to check if the object exists in the SYSOBJECTS system table and then drop and re-create.
Either way, it fails. You go out of your way to check if schema.name is a procedure , for no gain. If it exists and it is a procedure , if object_id(N’schema.name’) is not null drop procedure will work. November 6, 2017 at 1:58 PM, Using Sql Server 2012. I have a stored procedure and part of it checks if a username is in a table. If it is, return a 1, if not, return a 2. This is my code: IF EXISTS (SELECT * FROM tblGLUserAccess WHERE GLUserName =’xxxxxxxx’) 1 else 2 However, I keep receiving the below error: Incorrect syntax near ‘1’. Is this even possible with an IF …
Programming a Stored Procedure . If you’re like most casual user of T-SQL then you’re you’ve mostly likely copied some queries into a query windows and ran it to see results. The queries were running from top to bottom, one statement after another, in sequence. In simple terms, the control-of-flow of the execution was top to bottom.
If the procedure doesn’t exist, create it then alter in the correct code. If the procedure does exist, the create fails and the alter updates the code with the new code. It creates a different problem for the administrators, because the create throws a misleading error if the stored procedure already exists.
