Question

I’m running a query on a table that contains values, some of the form “jsFunc(‘H:\\directory\\subdir\\whatever.ext’)”, others of the form “jsFunc(‘\\\\ServerName\\directory\\subdir\\whatever.ext’)” along many other random strings items.

I want to select anything with the form “H:\\directory\\subdir”

heres my query…

SET @s = 'H:\\\\directory';
SELECT * FROM 'db'.'table' WHERE column LIKE CONCAT('%',@s,'%')

which produces no results. I’ve tried this without the variable/concat.

some values that produce results, and some that do not(but I feel they should)

@s = 'H:';              /*   returned rows*/
@s = 'H:\\';            /*no returned rows*/
@s = 'H:\\\\';          /*   returned rows*/
@s = 'H:\\\\directory'; /*no returned rows*/

@s = '\\\\directory';           /*   returned rows*/
@s = '\\\\directory\\\\subdir'; /*no returned rows*/

/* and worse of all... */

@s = 'H:\\\\directory\\\\subdir'; /*no returned rows. these are the rows I want*/

At first I thought the order of escaping operations might be causing the problem, hence the concatted ‘%’ to make sure they were not being escaped, but there doesn’t seem to be a difference. Is there some sort of escape voodoo going on here that I am missing?

Answer 1

u should just do @s = 'H:\\'; select @s;
then u would realized u need to double + double escape in order to achieve the like search
string H:\\ => H:\\\\\\\\