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TOTALing a child table
Message
From
17/01/2002 19:46:58
 
General information
Forum:
Visual FoxPro
Category:
Databases,Tables, Views, Indexing and SQL syntax
Miscellaneous
Thread ID:
00606502
Message ID:
00606507
Views:
19
>I have a table, LineItems, which is related into Details:
>I scan through LineItems, and for each related child record, I
>total up a field called CallAct:
>
>
>SELECT LineItems
>SCAN
>
>  nTotal = 0
>
>  SELECT Details
>  IF NOT EOF()
>    DO WHILE NOT EOF()
>      nTotal = nTotal + Details.CallAct
>    ENDDO
>  ENDIF
>
>  REPLACE IN LineItems CallTot WITH nTotal NEXT 1
>
>ENDSCAN
>

>
>Anyone know how I can do this using SQL?

You can probably do it with something like
SELECT ;
  Details.LineItemsForeignKey, ;
  SUM(Details.CallTot) AS CallTot ;
  FROM Details ;
  INTO CURSOR Output ;
  GROUP BY Details.LineItemsForeignKey
Regards. Al

"Violence is the last refuge of the incompetent." -- Isaac Asimov
"Never let your sense of morals prevent you from doing what is right." -- Isaac Asimov

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