[AccessD] sorting query on 'named' collumn and use 'named'collumnin where criteria of a query

Thanks andy.

----- Original Message ----- 
From: "Andy Lacey" <andy at minstersystems.co.uk>
To: "Access Developers discussion and problem solving"
<accessd at databaseadvisors.com>
Sent: Friday, June 18, 2004 3:47 PM
Subject: Re: [AccessD] sorting query on 'named' collumn and use
'named'collumnin where criteria of a query


> Just did a test. If you use a function in the WHERE of the second query
then
> the function will get called for each record, but only for records which
> satisfy your other criteria. If the function appears again in the ORDER BY
> it gets called again but only for records which have been included by the
> WHERE.
>
> You can check this out yourself by putting a Debug.Print in the function
> --
> Andy Lacey
> http://www.minstersystems.co.uk
>
>
>
> --------- Original Message --------
> From: Access Developers discussion and problem solving
> <accessd at databaseadvisors.com>
> To: Access Developers discussion and problem solving
> <accessd at databaseadvisors.com>
> Subject: Re: [AccessD] sorting query on 'named' collumn and use
> 'named'collumn in where criteria of a query
> Date: 18/06/04 13:07
>
> >
> > Which query will run first, the source (sub)query with the functions
(and
> no
> > WHERE statement, so no filtering) or the main query with select and
> > filtering?
> > Because if the query with the calculatins runs first the gain in speed
> maybe
> > will be little, because then the calculations (functions) will run for
all
> > records...
> >
> > Bert-Jan
> >
> > ----- Original Message -----
> > From: "Andy Lacey" <andy at minstersystems.co.uk>
> > To: "Access Developers discussion and problem solving"
> > <accessd at databaseadvisors.com>
> > Sent: Friday, June 18, 2004 10:46 AM
> > Subject: Re: [AccessD] sorting query on 'named' collumn and use
> > 'named'collumn in where criteria of a query
> >
> >
> > > Hi Bert-Jan
> > > No you can't, but what you can do is write a SELECT query which
gets
> you
> > the
> > > fields you want plus the calculated values, then make this the
source
> of
> > > your existing query rather than the original table. Because the
> calculated
> > > values are already in the source you can then refer to them as many
> times
> > as
> > > you like.
> > > --
> > > Andy Lacey
> > > http://www.minstersystems.co.uk
> > >
> > >
> > >
> > > --------- Original Message --------
> > > From: Access Developers discussion and problem solving
> > > <accessd at databaseadvisors.com>
> > > To: accessd at databaseadvisors.com
<accessd at databaseadvisors.com>
> > > Subject: [AccessD] sorting query on 'named' collumn and use 'named'
> > collumn
> > > in where criteria of a query
> > > Date: 18/06/04 07:56
> > >
> > > >
> > > > Dear list,
> > > >
> > > > in qeuries i use a lot of functions to format a value, or to
get
> > > > 'calculated' values, these functions get 'named' collumns
(like
> .... AS
> > > > clientnumber). This works fine.
> > > > However when i want to use this named collumn in the WHERE -
> statement
> > or
> > > in
> > > > the ORDER BY statement and i use the collumn name this doesn't
> work. Ik
> > i
> > > > use the same function again in the WHERE and ORDER BY
statement
> this
> > works
> > > > fine, but it slows down the qeury, because the function has to
> be
> > executed
> > > > more times.
> > > > Can i use the named collums in the WHERE and ORDER BY
statement
> and if
> > so
> > > > how do i do that?
> > > >
> > > > I am working with A2k on WINXP and WIN2kProffesional
> > > >
> > > > Thanks.
> > > >
> > > > Bert-Jan
> > > >
> > > > --
> > > > _______________________________________________
> > > > AccessD mailing list
> > > > AccessD at databaseadvisors.com
> > > > http://databaseadvisors.com/mailman/listinfo/accessd
> > > > Website: http://www.databaseadvisors.com
> > > >
> > > >
> > > >
> > > >
> > > >
> > >
> > > ________________________________________________
> > > Message sent using UebiMiau 2.7.2
> > >
> > > --
> > > _______________________________________________
> > > AccessD mailing list
> > > AccessD at databaseadvisors.com
> > > http://databaseadvisors.com/mailman/listinfo/accessd
> > > Website: http://www.databaseadvisors.com
> >
> > --
> > _______________________________________________
> > AccessD mailing list
> > AccessD at databaseadvisors.com
> > http://databaseadvisors.com/mailman/listinfo/accessd
> > Website: http://www.databaseadvisors.com
> >
> >
> >
> >
> >
> >
>
> ________________________________________________
> Message sent using UebiMiau 2.7.2
>
> -- 
> _______________________________________________
> AccessD mailing list
> AccessD at databaseadvisors.com
> http://databaseadvisors.com/mailman/listinfo/accessd
> Website: http://www.databaseadvisors.com