How can I tell if a VARCHAR variable contains a substring?

Question

I thought it was CONTAINS, but that\'s not working for me.

I\'m looking to do this:

IF CONTAINS(@stringVar, \'thisstring\')
   ...
<         


        

Answer 1

The standard SQL way is to use like:

where @stringVar like '%thisstring%'

That is in a query statement. You can also do this in TSQL:

if @stringVar like '%thisstring%'

Answer 2

    IF CHARINDEX('TextToSearch',@TextWhereISearch, 0) > 0 => TEXT EXISTS

    IF PATINDEX('TextToSearch', @TextWhereISearch) > 0 => TEXT EXISTS

    Additionally we can also use LIKE but I usually don't use LIKE.

Answer 3

CONTAINS is for a Full Text Indexed field - if not, then use LIKE

Answer 4

Instead of LIKE (which does work as other commenters have suggested), you can alternatively use CHARINDEX:

declare @full varchar(100) = 'abcdefg'
declare @find varchar(100) = 'cde'
if (charindex(@find, @full) > 0)
    print 'exists'