Обсуждение: BUG - possible UPDATE bug in multi-record?

Using this style of command through an SQL tool it
decrements each row in the list by 1 cent.

UPDATE GeneralLedger
SET CBalPer0 = CBalPer0 + (-0.01),
PBalPer0 = PBalPer0 + (-0.01)
WHERE AccountSequence IN (56,54,3,2)

(I only use the brackets to handle sign of amount
as in next example)


Trying to execute it through ODBC...

    Amount = -0.01
    AccountSequence = "(56,54,3,2)"
    SQL= "UPDATE GeneralLedger " & _
         "SET CBalPer0 = CBalPer0 + (" & Amount & "), " & _
         "PBalPer0 = PBalPer0 + (" & Amount & ") " & _
         "WHERE AccountSequence IN " & AccountSequenceList

    myConnection.Execute(SQL)

...causes movements in other accounts and incorrect balances!

I am trying with 2 separate UPDATE statements...

    SQL= "UPDATE GeneralLedger " & _
         "SET CBalPer0 = CBalPer0 + (" & Amount & "), " & _
         "WHERE AccountSequence IN " & AccountSequenceList

    myConnection.Execute(SQL)

    SQL= "UPDATE GeneralLedger " & _
         "SET PBalPer0 = PBalPer0 + (" & Amount & ") " & _
         "WHERE AccountSequence IN " & AccountSequenceList

    myConnection.Execute(SQL)

...and yes this does work.

--
Keith Gray

Technical Development Manager
Heart Consulting Services P/L
mailto:keith@heart.com.au

Keith Gray wrote:
>
> Using this style of command through an SQL tool it
> decrements each row in the list by 1 cent.
>
> UPDATE GeneralLedger
> SET CBalPer0 = CBalPer0 + (-0.01),
> PBalPer0 = PBalPer0 + (-0.01)
> WHERE AccountSequence IN (56,54,3,2)
>
> (I only use the brackets to handle sign of amount
> as in next example)
>
> Trying to execute it through ODBC...

Please start the postmaster with -d option and
see what queries are issued at backend ?

>
>         Amount = -0.01
>         AccountSequence = "(56,54,3,2)"

Isn't it * AccountSequenceList = "(56,54,3,2)" * ?

regards,
Hiroshi Inoue

>         SQL= "UPDATE GeneralLedger " & _
>              "SET CBalPer0 = CBalPer0 + (" & Amount & "), " & _
>              "PBalPer0 = PBalPer0 + (" & Amount & ") " & _
>              "WHERE AccountSequence IN " & AccountSequenceList
>
>         myConnection.Execute(SQL)
>
> ...causes movements in other accounts and incorrect balances!
>
> I am trying with 2 separate UPDATE statements...
>
>         SQL= "UPDATE GeneralLedger " & _
>              "SET CBalPer0 = CBalPer0 + (" & Amount & "), " & _
>              "WHERE AccountSequence IN " & AccountSequenceList
>
>         myConnection.Execute(SQL)
>
>         SQL= "UPDATE GeneralLedger " & _
>              "SET PBalPer0 = PBalPer0 + (" & Amount & ") " & _
>              "WHERE AccountSequence IN " & AccountSequenceList
>
>         myConnection.Execute(SQL)
>
> ...and yes this does work.
>
> --
> Keith Gray