Select Data from BSIS table taking too long

Question

Hi
I have to develop a report to give the  details of Extended Withholding Tax (EWT)  for a list of Expenses GL.
Each expense GL is  linked to another Gl which is the EWT Tax GL Account. This is maintained in a Ztable.
I havae wirtten the following code. It takes a lot of time to extract a data.
This give me the GL i require
SELECT * FROM ZSECCO_GL_EWT INTO CORRESPONDING FIELDS OF TABLE IT_GL
 WHERE BUKRS    = P_BUKRS
 AND   WT_QSCOD = P_QSCOD.
Then I select  only the distinct documents No, from BSIS table  fro the hkonts  in the above internal table
SELECT DISTINCT BUKRS GJAHR BELNR  FROM BSIS INTO CORRESPONDING FIELDS OF
TABLE IT_BSIS_GL
 FOR ALL ENTRIES IN IT_GL
 WHERE BUKRS = P_BUKRS AND  HKONT = IT_GL-HKONT  AND GJAHR = P_GJAHR.
Here I   once again select the   document details based on the document No. from above internal table
This query takes a lot of time
SELECT * FROM BSIS INTO CORRESPONDING FIELDS OF TABLE IT_BSIS
 FOR ALL ENTRIES IN IT_BSIS_GL
 WHERE  BUKRS = P_BUKRS AND GJAHR = P_GJAHR
    AND BELNR = IT_BSIS_GL-BELNR.
Please Help

Answer 1

Hi,
Check note 992803; it could be that there is insufficient or missing index for BSIS table.
Regards,
Eli