sql server - can I use a variable for the integer expression in a left sql function -


i have following query:

    select top 2500 *      table     left join table b     on a.employee_id = b.employee_id     left(a.employee_rc,6) in             (              select employeeid, access                 accesslist                employeeid = '#client.id#'             )

the sub select in where clause can return 1 or several access values, ex:

  • js1234 blkhsa
  • js1234 hdf48r7
  • js1234 bln6

in primary where clause need able change integer expression 6 5 or 4 or 7 depending on length of values returned in sub select. @ loss if right way go it. have tried using or statements slows down query.

try using exists instead:

   select top 2500 *    table left join         table b         on a.employee_id = b.employee_id    exists (select 1                  accesslist                  employeeid = '#client.id#' ,                        a.employee_rc concat(employeeid, '%')                  ) ;

i don't see how original query worked. subquery returning 2 columns , isn't allowed in sql in.


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