Can I put Read inside loop?

Question

Hi Folks
Can I put Read inside loop?
Performance wise is it acceptable?
Regards,
Sreeram

Answer 1

Hi
there is no problem to put READ statement inside the LOOP
its a better way to put
to avoid SELECT in a LOOP
see this example
i had used that in my program
in the performance point of view it is a good method
LOOP AT IT_SOBID INTO WA_SOBID." where otype eq s_otype and objid eq s_objid.
    READ TABLE IT_HRP1026 WITH KEY OBJID = WA_SOBID-SOBID OTYPE = WA_SOBID-SCLAS INTO WA_HRP1026.
    IF SY-SUBRC EQ 0.
      READ TABLE IT_HRP1000 WITH KEY OBJID = WA_SOBID-SOBID INTO WA_HRP1000.
      WA_OUTPUT-OBJID = WA_HRP1026-OBJID.
      WA_OUTPUT-BEGDA = WA_SOBID-BEGDA.
      WA_OUTPUT-ENDDA = WA_SOBID-ENDDA.
      WA_OUTPUT-AEDTM = WA_HRP1026-AEDTM.
      WA_OUTPUT-UNAME = WA_HRP1026-UNAME.
      WA_OUTPUT-STEXT = WA_HRP1000-STEXT.
      READ TABLE IT_REASON WITH KEY CANCR = WA_HRP1026-CANCR INTO WA_REASON.
      WA_OUTPUT-CANCRT = WA_REASON-CANCRT.
      CLEAR WA_REASON-CANCRT.
      READ TABLE IT_LOCATION1 WITH KEY OBJID = WA_HRP1026-OBJID INTO WA_LOCATION1..
      READ TABLE IT_LSTEXT WITH KEY OBJID = WA_LOCATION1-SOBID OTYPE = 'F' INTO WA_LSTEXT.
             WA_OUTPUT-LSTEXT = WA_LSTEXT-LSTEXT.
             CLEAR WA_LSTEXT-LSTEXT.
      APPEND WA_OUTPUT TO IT_OUTPUT.
      CLEAR WA_OUTPUT.
      CLEAR WA_OUTPUT-CANCRT.
    ENDIF.
  ENDLOOP.
<b>Reward if usefull</b>