John Bartow
john at winhaven.net
Thu May 8 10:13:48 CDT 2003
I read about this syntax in Access Advisor a couple of years ago. It was something a user wrote in for a tip. Ken Getz (tips editor) had the same reaction that everyone else seems to have - how did you figure this out?! He couldn't find it documented anywhere. I pulled it out from my collection a couple of months ago to review it and now I can't find that issue! When I find it again I will share it and the author's name. JB > -----Original Message----- > From: accessd-bounces at databaseadvisors.com > [mailto:accessd-bounces at databaseadvisors.com]On Behalf Of Wortz, Charles > Sent: Thursday, May 08, 2003 9:01 AM > To: accessd at databaseadvisors.com > Subject: RE: RE: [AccessD] SQL in-line subquery > > > Dave, > > I have to agree with you. From the article you cited, we can see how to > write regular subqueries. So why the special []. syntax exists, and > what does it do that the regular subquery cannot do, still has not been > explained. > > Maybe somebody that is between projects will take the time to > investigate what []. does and will report back to us. Many-to-Many is > always looking for good articles. > > Charles Wortz > Software Development Division > Texas Education Agency > 1701 N. Congress Ave > Austin, TX 78701-1494 > 512-463-9493 > CWortz at tea.state.tx.us > > > > -----Original Message----- > From: davesharpe2 at cox.net [mailto:davesharpe2 at cox.net] > Sent: Thursday 2003 May 08 08:41 > To: accessd at databaseadvisors.com > Subject: Re: RE: [AccessD] SQL in-line subquery > I > Charles, I agree. > > One thing I would like to note that I'm not > sure that I see the significance of the > "[ ]. syntax" ( while I agree that it works ). > > I get the same results using the following > two queries. ( I regret that my client word- > wrapped the examples ) > > ================================ > 1 - Using [ ]. > SELECT > Count(*) AS DaysUnique > FROM > [SELECT DISTINCT po_date FROM LAW70_PURCHORDER]. AS subDistinctDays > > 2 - Using a normal "SubQuery in the From Clause" > SELECT > Count(*) AS DaysUnique > FROM > (SELECT DISTINCT po_date FROM LAW70_PURCHORDER) AS subDistinctDays > > Dave > > > > > From: "Wortz, Charles" <CWortz at tea.state.tx.us> > > Date: 2003/05/08 Thu AM 08:20:49 EDT > > To: <accessd at databaseadvisors.com> > > Subject: RE: [AccessD] SQL in-line subquery > > > > Dave, > > > > Nice article, but it does not discuss the specific type of subquery > > that is the subject of the original questioner; namely, the [ ]. > > syntax for subqueries. > > > > > > Charles Wortz > > -----Original Message----- > > From: dave sharpe [mailto:davesharpe2 at cox.net] > > Sent: Wednesday 2003 May 07 21:42 > > To: accessd at databaseadvisors.com > > Subject: Re: [AccessD] SQL in-line subquery > > > > > > Friends I found this on the subject and thought that > > it might be of benefit to some members of the group. > > > > http://www.nesug.org/Proceedings/nesug98/dbas/p005.pdf > > > > Dave > > > > > > ----- Original Message ----- > > From: Wortz, Charles <mailto:CWortz at tea.state.tx.us> > > To: accessd at databaseadvisors.com > > Sent: Wednesday, May 07, 2003 12:45 PM > > Subject: RE: [AccessD] SQL in-line subquery > > > > Also, about a year ago this subject was brought up with about > the > > same > > amount of information documented. > > > > Charles Wortz > > -----Original Message----- > > From: Charlotte Foust [mailto:cfoust at infostatsystems.com] > > Sent: Wednesday 2003 May 07 11:16 > > To: accessd at databaseadvisors.com > > Subject: RE: [AccessD] SQL in-line subquery > > > > But, Gustav, we just created references to it here! <VBG> > > > > Charlotte Foust > > > > -----Original Message----- > > From: Gustav Brock [mailto:gustav at cactus.dk] > > Sent: Tuesday, May 06, 2003 11:51 PM > > To: accessd at databaseadvisors.com > > Subject: Re: [AccessD] SQL in-line subquery > > > > > > Hi Charlotte > > > > > .. If you ever find it in help, for goodness sake, post the > > reference > > > > > here! > > > > I would say: if you ever find any reference to this, post it > here. > > > > /gustav > _______________________________________________ > AccessD mailing list > AccessD at databaseadvisors.com > http://databaseadvisors.com/mailman/listinfo/accessd > Website: http://www.databaseadvisors.com > >