Perhaps call a UDF from that REPLACE line that utilizes SQL?
REPLACE MyTotal with CalculateTotal(MyCommonField) ALL IN MySummaryTable
FUNCTION CalculateTotal(tcField as String) as Number
LOCAL ARRAY laSum[1]
SELECT SUM(MyFieldToSum) ;
FROM MyDetailTable ;
WHERE MyCommonField = tcField ;
INTO ARRAY laSum
RETURN NVL(laSum[1],0)
ENDFUNC && CalculateTotal(tcField as String) as Number
On 2014-07-29 19:21, Fernando D. Bozzo wrote:
In this case you need an Update-SQL. I don't remember exact syntax when
combined with a Select-SQL, but is something like this:
UPDATE stocktable SET qty = ( select SUM(qty) as ttl FROM invtable
where
invtable.stockcode=stocktable.code )
Look at Example 3 in this link:
http://msdn.microsoft.com/en-us/library/8hwekas8%28v=vs.80%29.aspx
Regards.-
2014-07-30 1:15 GMT+02:00 Sytze de Boer <sytze.k...@gmail.com>:
I want to the fastest possible qty update to the stocktable with
information from another table
The tables are stand-alone tables
On Wed, Jul 30, 2014 at 11:10 AM, Fernando D. Bozzo
<fdbo...@gmail.com>
wrote:
> You can use a Select-SQL as a subquery for another Select-SQL, but a
> REPLACE or DELETE commands, not being SQL, can't use subqueries, except
you
> use it inside a function called as part of the REPLACE/DELETE expression
> condition (but it can complicate things too much).
>
> Sometimes it's better to have more readability, even if this implies the
> use of more than 1 line of code.
>
> What are you exactly want to do?
>
>
>
> 2014-07-30 1:00 GMT+02:00 Sytze de Boer <sytze.k...@gmail.com>:
>
> > I seem to recall a similar line of code where I could something like
> > sele stocktable
> > delete for (select sum(qty) as ttl, stockcode from othertable)
> >
> > I was hoping to do this in 1 line, but as Tracy said, maybe a scan will
> > have to suffice
> >
> > scan
> > select SUM(qty) as ttl,stockcode FROM invtable where
> > stockcode=stocktable.code
> > if ttl=0
> > sele stocktable
> > delete
> > endif
> > endscan
> >
> >
> >
> > On Wed, Jul 30, 2014 at 10:52 AM, Fernando D. Bozzo <fdbo...@gmail.com
>
> > wrote:
> >
> > > Hi Sytze:
> > >
> > > You can't use _tally this way. You are assuming too much using like
> this,
> > > and this system variable is updated with every VFP command that
> operates
> > on
> > > records, as Select-SQL, REPLACE, UPDATE, and the like.
> > > In your example, _tally is updated *after* REPLACE is executed with
the
> > > number of records affected, but can be affected also with the
> Select-SQL
> > at
> > > the same time.
> > >
> > > You didn't mention what the error is, but you can't use a Select-SQL
> as a
> > > function or expression, because it is a command. You should decompose
> > this,
> > > may be using this Select-SQL inside a function, but the _tally
> behaviour
> > > can be erratic in this use case.
> > >
> > >
> > > Best regards.-
> > >
> > >
> > >
> > > 2014-07-30 0:22 GMT+02:00 Sytze de Boer <sytze.k...@gmail.com>:
> > >
> > > > Friends
> > > > Can someone point out me error here please
> > > >
> > > > select stocktable
> > > > REPLACE ALL qty WITH IIF(_tally>0,select SUM(qty) as ttl,stockcode
> FROM
> > > > invtable where stockcode=stocktable.code,ttl,0))
> > > >
> > > > --
> > > > Kind regards,
> > > > Sytze de Boer
> > > > Kiss Software
> > > >
> > > >
> > > > --- StripMime Report -- processed MIME parts ---
> > > > multipart/alternative
> > > > text/plain (text body -- kept)
> > > > text/html
> > > > ---
> > > >
[excessive quoting removed by server]
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