Select Statment Error (SQL)

Question

Dear Friends,
  LOOP AT IT_ZSD012_001 INTO WA_ZSD012_001.
    SELECT  A~MATNR A~LABST A~UMLME A~INSME A~EINME A~SPEME A~RETME B~MTART
      APPENDING TABLE IT_INVENTORY
      FROM  MARD AS A
      INNER JOIN MARA AS B ON B~MATNR EQ A~MATNR
      WHERE A~MATNR = '1.1.1'
      and   A~WERKS EQ  WA_ZSD012_001-PARAM_1
      AND   A~LGORT EQ  WA_ZSD012_001-VALUE
      AND   A~LABST GT 0
      OR    ( A~UMLME GT 0
      OR    A~INSME GT 0
      OR    A~EINME GT 0
      OR    A~SPEME GT 0
      OR    A~RETME GT 0 )
      AND   B~MTART IN ('ZFG1' , 'ZFG4' , 'ZR12' ).
  ENDLOOP.
this is my code (select statement)
but this is not working, when i execute this so many materials came to the itab it should come only "1.1.1"
my requirement is i want to get data from MARD agaist WERKS, LGORT and also MARA-MTART in that groups.
its came with zero inventory, i want to avid them how can i do this.
hope you can understand what i an said?
Thanks in advanced

Answer 1

Hi Nelson,
For better performance try to avoid using join statements. Use for all entries instead.
Never use select staments in Loops.
try your code following way
if it_zsd012_001 is not initial.
   select matnr labst umlme insme einme speme retme
      from mard
      appending table it_inventory
      for all entries in it_asd012_001
      where matnr = '1.1.1'
      and   werks = it_asd012_001-param_1
      and   lgort = it_asd012_001-value
      and  (labst gt 0 or insme gt 0 or einme gt 0 or speme gt 0 or retme gt 0).
       if sy-subrc eq o.
            select mtart from mara
                   into table it_mara
                    for all entries in it_inventory
                    where matnr = it_enventoty-matnr
                    and   mtart in ('ZFG1' , 'ZFG4' , 'ZR12' ).
        endif.
        endif.
"Then just merge two table into third one.
Hope it will help to solve your query,
Pratik