RE: Simple(?) SQL question

[jmmckee@xxxxxxxxxxxxxx]

I may be doing something wrong, or MS-SQL is just a tad different from 
System i.

On our test system, I entered this:

update pre_case as a
   set (a.patient_name) =
       select coalesce(b.patient_name,a.patient_name)
            from demographic as b
           where a.medical_record_no = b.medical_record_no
                  and a.medical_record_no = '990030133'

Here is the error I received:

Server: Msg 156, Level 15, State 1, Line 1
Incorrect syntax near the keyword 'as'.


For testing, I just wanted to modify records associated with a single medical
record.  Likely, that will have to be what will be done on the live 
database. Too much unusual data to do a global change.

So, anybody either see something wrong with what I entered, or perhaps the
statement only works on System i, as written?

It is Friday.  This mess will still be here next week.

John McKee

Quoting Alan Shore <AlanShore@xxxxxxxx>:

> True - if there are millions of records to be processed this could be a
> major factor where processing time is concerned
>
>
>
> Alan Shore
>
> NBTY, Inc
> (631) 244-2000 ext. 5019
> AShore@xxxxxxxx
>
> midrange-l-bounces@xxxxxxxxxxxx wrote on 03/08/2007 04:43:35 PM:
>
> > I'd add:
> >
> > AND A.PATIENT_NAME <> B.PATIENT_NAME
> >
> > To the where clause. Why bother updating a row where no update is
> > needed.
> >
> > -Walden
> >
> > --
> > Walden H Leverich III
> > Tech Software
> > (516) 627-3800 x3051
> > WaldenL@xxxxxxxxxxxxxxx
> > http://www.TechSoftInc.com
> >
> > Quiquid latine dictum sit altum viditur.
> > (Whatever is said in Latin seems profound.)
> >
> >
> > --
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