Inner join Statement

Question

Hi All,
I am using this inner Join Statement
      SELECT *
      FROM vbap AS a INNER JOIN vbak AS b
                     ON avbeln = bvbeln
                     AND amandt = bmandt
      WHERE a~vbeln IN lr_vbeln AND
            a~posnr IN lr_posnr AND
            a~aedat IN lr_aedat AND
          ( b~vbtyp EQ 'A' OR
            b~vbtyp EQ 'B' OR
            b~vbtyp EQ 'G' ).
But when i see the Output, One of the field ERDAT is geeting picked up from VBAK table instead of VBAP table.
Any pointers on how can we select the ERDAT from VBAP using this inner Join.
I dont want to use 2 select stetements.
Regards,
Mayank

Answer 1

In Inner join, it is always advisable to put the header table as First table and secondly, it should be advisable to fetch only the requried fields. I believe that you might not required all the fields of VBAP table.
Select A~Vbeln
          A~vbtyp
          B~posnr
          B~erdat
          into table I_VBAP
          from vbak as A innner Join VBAP as B
          on  a~vbeln = b~vbeln
          where   a~vbeln IN lr_vbeln AND
                      b~posnr IN lr_posnr AND
                      b~aedat IN lr_aedat AND
                     ( a~vbtyp EQ 'A' OR
                       a~vbtyp EQ 'B' OR
                       a~vbtyp EQ 'G' ).