Question

I have a query inside my stored procedure:

IF @backup = 0
    BEGIN
       SELECT sql = 'BACKUP DATABASE MyDatabase TO DISK="'+@file+'"';
    END

@file is nvarchar(MAX) and backup is int.

If I execute the stored procedure like:

DECLARE @return_value int

EXEC    @return_value = [dbo].[usp_cp_backup_restore_db]
        @backup = 0,
        @file = N'C:\backupFiles\MyDatabase.bak'

but the result becomes:
BACKUP DATABASE ContentPlatform TO DISK="C:\backupFiles\MyDatabase.bak"

I want to appear BACKUP DATABASE ContentPlatform TO DISK='C:\backupFiles\MyDatabase.bak'
because the correct format is

BACKUP
DATABASE MyDatabase TO
DISK='C:\MyDatabase.bak'

accordingly with http://dwhanalytics.wordpress.com/2011/03/15/sql-serverexclusive-access-could-not-be-obtained-because-the-database-is-in-usethe-tail-of-the-log-for-the-database-has-not-been-backed-up/

Any suggestions ?

Thanks

Answer 1

Instead of using " in your initial strings, use '' instead. SQL knows, if you put two ' next to each other, that you mean ' to appear in the string (as opposed to ending one string and starting another.)

SELECT sql = 'BACKUP DATABASE MyDatabase TO DISK='''+@file+'''';

It looks odd, sure, but it works.