Question

New to SQL, so please accept my apologies. A query was created that when

If HBL_CLNT_CAT._HS_EB_CODE1 = 'BF' then value = TBM_BILLGRP._HS_EB_DET1
If HBL_CLNT_CAT._HS_EB_CODE2 = 'BF' then value = TBM_BILLGRP._HS_EB_DET2

However of the _HS_EB_DET# exceeds 100 characters add a ‘*’.

With assistance a query was developed, however it broken the condition rules in that the ‘then statement/action would fail because it was greater number than the condition statement (select _hs_eb_code1 from hbl_cat where hs_eb_code = 'bf' that returns only 1 record).

select
  case when len(format) > 100
       then left(format, 100) + '*'
       else format 
 end as format
from
  ( select 
      case when exists ( select _hs_eb_code1
                         from hbl_cat 
                         where hs_eb_code = 'bf'
                       )
           then tbm_bllgrp._hs_eb_det1 
      end
   ) as format 
     from tbm_bllgrp 

Answer 1

Formatting the code would have helped you find the error. Try this:

select
  case when len(format) > 100
       then left(format, 100) + '*'
       else format 
  end as format
from
  ( select 
      case when exists ( select _hs_eb_code1
                         from hbl_cat 
                         where hs_eb_code = 'bf'
                       )
           then tbm_bllgrp._hs_eb_det1 
      end as format 
     from tbm_bllgrp 
  ) as tmp