Thanks for that guys. 

-----Original Message-----
From: Neven MacEwan [mailto:[EMAIL PROTECTED]] 
Sent: Tuesday, 2 October 2001 10:56
To: Multiple recipients of list delphi
Subject: Re: [DUG]: Update SQL Syntax


My thoughts exactly, safest

UPDATE SHDayD
SET Department = (select max(Department) from product where SHDayD.ScanCode
=
Product.ScanCode)

Neven

----- Original Message -----
From: "Myles Penlington" <[EMAIL PROTECTED]>
To: "Multiple recipients of list delphi" <[EMAIL PROTECTED]>
Sent: Tuesday, October 02, 2001 10:46 AM
Subject: RE: [DUG]: Update SQL Syntax


> Also this will work, but need to be careful that only a singleton is 
> returned, so may need some more qualification in the select part.
>
> UPDATE SHDayD
> SET Department = (select Department from product where SHDayD.ScanCode 
> =
> Product.ScanCode)
>
> Myles.
>
>
> -----Original Message-----
> From: David Brennan [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, 2 October 2001 10:41 a.m.
> To: Multiple recipients of list delphi
> Subject: Re: [DUG]: Update SQL Syntax
>
>
>
>
> > What is the syntax for an update query if I want to reference 
> > another
> table
> > ?
> >
> > I.E
> >
> > UPDATE SHDayD
> > SET Department = Product.Department
> > WHERE (ScanCode = Product.ScanCode)
> >
> Depends a bit on which version of SQL you are using but the following
would
> work on SQL Server:
>
> UPDATE SHDayD
> SET Department = Product.Department
> FROM Product
> WHERE (SHDayD.ScanCode = Product.ScanCode)
>
> David.
>
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