Carmen,

1) You *must* use table buffering;
2) You *must* use TABLEUPDATE()s on each of your tables;

3) Also, depending on the actual logic needed, you may (should) use only 1 BEGIN TRANSACTION (*IF* all of the updates are an 'all-or-nothing' situation).

Finally when using transactions, keep in mind that ALL affected records are locked from all users until a END TRANSACTION/ROLLBACK is issued, so the prescribed way to code them is, highly counter-intuitively, along the lines of:

SELECT Table1
APPEND/REPLACE
SELECT Table2
APPEND/REPLACE
SELECT Table3
APPEND/REPLACE

BEGIN TRANSACTION
TABLEUPDATE(....Table1)
TABLEUPDATE(....Table2)
TABLEUPDATE(....Table3)
END TRANSACTION

good luck


>hi,
>
>I have a Visual Foxpro Ver7 program which opens two databases: stock and
>account.
>When an invoice is issued, it will update records to tables in both
>databases using the Begin..End Transaction feature (without Table Buffering). The problem is, it is unstable and sometimes there are records not being appended to the account tables or the index not being synchronised. My suspicion is because I use the
>transaction processing against two different databases incorrectly. Here is a rough
>sample of my updates:
>
>BEGIN TRANSACTION
>Append/Replace tables in Stock DB
>..
>Append/Replace tables in Account DB
>..
>Append/Replace tables in Stock DB
>..
>
>if no error detected
> END TRANSACTION
>else
> ROLLBACK
>endif
>
>I can't seem to find examples in documentation that use more than one
>database. Does anyone know how it is done?? Do I need to nest transactions as such:
>
>SET DATABASES TO STOCK
>BEGIN TRANSACTION
>Append/Replace tables in Stock DB
>..
>SET DATABASES TO ACCOUNT
>BEGIN TRANSACTION
>APPEND/REPLACE TABLES IN STOCK DB
>END TRANSACTION
>..
>..
>Append/Replace tables in Stock DB
>..
>..
>SET DATABASES TO ACCOUNT
>BEGIN TRANSACTION
>APPEND/REPLACE TABLES IN Account DB
>END TRANSACTION
>..
>..
>Append/Replace tables in Stock DB
>..
>IF no error detected
> END TRANSACTION
>ELSE
> ROLLBACK
>ENDIF
>
>Thanks