Use database inside a stored procedure

Question

I need to make a stored procedure which creates a user in more than one database. Something like this:

USE [database1]

CREATE USER [userLogin] FOR LOGIN [us         


        

Answer 1

If you're writing dynamic SQL with EXEC sp_executesql ('query1') or EXEC ('query2') this will return correct db which you want. If you're writing static SQL or your query outside of dynamic SQL quotes or parantheses it will work on master (where you create stored procedure(default is master)).

CREATE PROCEDURE master.dbo.mysp1
AS

    EXEC ('USE model; SELECT DB_NAME()') -- or sp_executesql N'USE model; SELECT DB_NAME()' 
    --this returns 'model'

GO


CREATE PROCEDURE master.dbo.mysp2
AS

    EXEC ('USE model;') -- or sp_executesql N'USE model;'
    SELECT DB_NAME() 
    -- this returns 'master'

GO