In how many ways we can filter this select statement to improve performance

Question

Hi Experts,
This select statement taking 2.5 hrs in production, Can we filter the where condition, to improve the performance.Plz suggest with coding ASAP.
select * from dfkkop into  table t_dfkkop
           where   vtref   like 'EPC%'        and
               ( ( augbd      =  '00000000'   and
                   xragl      = 'X' )
                           or
                 ( augbd between w_clrfr and  w_clrto )  )  and
                   augrd      ne '03'         and
                   zwage_type in s_wtype .
Regards,
Sam.

Answer 1

if it really takes 2.5 hours, try the followingtry to run the SQL trace and
select *
          into table t_dfkkop
          from dfkkop
          where vtref like 'EPC%'
          and augbd = '00000000' and xragl
         and augrd ne '03'
         and zwage_type in s_wtype .
select *
          appending table t_dfkkop
          from dfkkop
          where vtref like 'EPC%'
         and augbd between w_clrfr and w_clrto 
         and augrd ne '03'
         and zwage_type in s_wtype .
Do a DESCRIBE TABLE after the first SELECT and after the second,
or run an SQL Trace.
What is time needed for both parts, how many records come back, which index is used.
Siegfried