Re: NESTED MINUS?

Thanks Elliott, Jack and Krishna.

Well I don't know... after I received your responses I tried in again and it worked!!! Some missing comma or something.

Elliot, this was only an example query, the really query is a little trickier. I am using the minus because using the "not in" (my first choice by the way), is about 100 times slower than using the minus. I'm sure if I played with the indexes a little, that could improve on that, however minus is VERY fast.

Thanks again

Mike

• Original Message ----- To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com> Sent: Wednesday, February 07, 2001 4:01 PM

> The syntax is only OK without the "table"'s in it. I think you might be
> seeing some extra underscores where they aren't. If I run the sql exactly
> as it is in this message, I get the same error message stated here. Here
is
> the output:
>
> 1 select * from table A where A.f1 in (
> 2 select f1 from table A
> 3 minus
> 4* select f1 from table B)
> SQL> /
> select * from table A where A.f1 in (
> *
> ERROR at line 1:
> ORA-00906: missing left parenthesis
>
> > -----Original Message-----
> > From: Jack C. Applewhite [SMTP:japplewhite_at_inetprofit.com]
> > Sent: Wednesday, February 07, 2001 3:42 PM
> > To: Multiple recipients of list ORACLE-L
> > Subject: RE: NESTED MINUS?
> >
> > Mike,
> >
> > It's not only possible, but I do it all the time. In fact I
> > just did a query against our database that had a Union
> > nested within a Minus nested within an Intersect - not often
> > I get to use all three in the same statement! This
> > particular Select hit several tables of over a million rows
> > each, with very nice performance - even on Win2k!
> >
> > Your problem might be as simple as SQL*Plus getting stupid
> > (it happens). Try moving the initial parenthesis down to in
> > front of the select on the next line. It may not solve your
> > problem, but might. Your syntax is perfectly OK.
> >
> > Jack
> >
> > --------------------------------
> > Jack C. Applewhite
> > Database Administrator/Developer
> > OCP Oracle8 DBA
> > iNetProfit, Inc.
> > Austin, Texas
> > www.iNetProfit.com
> > japplewhite_at_inetprofit.com
> >
> >
> > -----Original Message-----
> > Mike
> > Lanteigne
> > Sent: Wednesday, February 07, 2001 2:13 PM
> > To: Multiple recipients of list ORACLE-L
> >
> >
> > Hi all,
> >
> > can you use the minus operator in nested sql
> > eg
> > select * from table A where A.f1 in (
> > select f1 from table A
> > minus
> > select f1 from table B);
> >
> > I'm getting a "missing right parenthesis" error, so I think
> > it may not be
> > possible!
> >
> > Thanks
> >
> > Mike
> >
> >
> > --
> > Please see the official ORACLE-L FAQ: http://www.orafaq.com
> > --
> > Author: Jack C. Applewhite
> > INET: japplewhite_at_inetprofit.com
> >
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> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> --
> Author: Elliott, Patrick
> INET: Patrick.Elliott_at_bestbuy.com
>
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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Mike Lanteigne
  INET: mikel_at_shec.com

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
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