SQL Escape ' '

Question

I am trying to run a query in SQL 2008 by doing:

@query varchar(max)

SET @query = \'SELECT * FROM Table WHERE [Name] = \' \'Karl\' \' \'

EXEC(@query)
         


        

Answer 1

Try:

DECLARE @query varchar(max)

SET @query = 'SELECT * FROM Table WHERE [Name] = ''Karl'''

PRINT 'when in doubt, print the query out: '+ISNULL(@query,'')
EXEC(@query)

To have a single quote appear, you need to have two adjacent single quotes. You escape a single quote with a single quote, for example:

PRINT ''''     --will print a one single quote
PRINT ''''''   --will print two single quotes
PRINT 'can''t' --will print can't