Inner join 4 tables

Question

can anyone give example how to join 4 tables?
  SELECT mara~matnr werks xchar mtart matkl meins trame umlmc
         INTO CORRESPONDING FIELDS OF TABLE t_mat
         FROM mara INNER JOIN marc
         ON maramatnr = marcmatnr
         WHERE mara~matnr IN matnr
           AND werks IN werks
           AND mtart IN matart
           AND matkl IN matkla
           AND ekgrp IN ekgrup
           AND mara~lvorm = lvorm.
select mblnr mjahr matnr werks
       from mseg
       into table it_mseg
       for all entries in t_mat
       where matnr = t_mat-matnr
   and werks = t_mat-werks.
select mblnr mjahr budat
       from mkpf
       into table it_mkpf
       for all entries in it_mseg
       where mblnr = it_mseg-mblnr
       and mjahr = it_mseg-mjahr.
i m adding additional field in the selection screen "BUDAT FROM MKPF'..
so look at the above code, how i wrote to get the details of bkpf.
so now i just want one select statement where it picks mara, marc fields along with mkpf-budat.

Answer 1

Consider these 4 tables. MARA , MARC , MARD , MAKT.
then select query will be to join all these 4 tables.
Select AMATNR AMTART BWERKS CEINME CSPEME DMAKTX
          FROM MARA AS A INNER JOIN MARC AS B ON
           AMATNR = BMATNR INNER JOIN MARD AS C ON
           BMATNR = CMATNR INNER JOIN MAKT AS D ON
           CMATNR = DMATNR INTO CORRESPONDING FIELDS OF TABLE 
ITAB WHERE A~MATNR IN SO_MATNR.
Note : SO_MATNR is the variable of selection screen.
Using these select query you can get the field from all 4 tables.
Pradip Pawar.
give points if answer is valuable