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RE: One more: rowcounts with DODS standalone!: msg#00018java.enhydra.general
Ok! I understand now that the method works as a switch modifying the SQL statement. I looked a bit at the source code of the Query classes generated and I get the impression that the caching mechanism isn't involved. Will the result still be cached? Thanks for your help! Axel --- Madl Alfred <A.Madl@xxxxxxxxxxx> schrieb: > When using selectCount() you simply switch the SQL > clause from SELECT T1.* > FROM.... to SELECT count(*) FROM... > > Everyting else is working the same as with normal > queries... > > Alfred > > -----Original Message----- > From: Axel Wilhelm Berle [mailto:axelberle@xxxxxxxx] > > Sent: Mittwoch, 17. Dezember 2003 13:07 > To: enhydra@xxxxxxxxxxx > Cc: Madl Alfred > Subject: One more: rowcounts with DODS standalone! > > Thanks Alfred, > > That was exactly what I needed! By accident I > stumbled > over the selectCount() method which seems to be the > solution to another problem we are facing: how to > count the number of rows of a query! > > My question is: does selectCount() cache the > results? > Or is it recalculated all the times it is called? > > > Thanks in advance! > > Axel > > > > > > > Subject: AW: Enhydra: Browsing of tables with DODS > Date: Tue, 16 Dec 2003 22:26:01 +0100 > From: "Madl Alfred" <A.Madl@xxxxxxxxxxx> > To: <enhydra@xxxxxxxxxxx> > Reply-To: enhydra@xxxxxxxxxxx > > Hi ! > > xxxQuery classes support "readSkip" and > "setDatabaseLimit" methods to > do > that ! "databaseLimitExceeded" even tells you, if > there would be more > data following... > > Greetings. > > Alfred > > -----Urspr=FCngliche Nachricht----- > Von: Axel Wilhelm Berle > [mailto:axelberle@xxxxxxxx]=20 > Bereitgestellt: Dienstag, 16. Dezember 2003 15:03 > Bereitgestellt in: Enhydra > Unterhaltung: Enhydra: Browsing of tables with DODS > Betreff: Enhydra: Browsing of tables with DODS > > > Hi! > > I have a practical question concerning browsing of > tables with DODS (standalone). I need to retrieve > the > contents of a table in pages. In the old version of > DODS I constructed manually a query using the SQL > OFFSET and LIMIT feature. > > What would be the best DODS way to browse a table, > page for page, without the need to get the entire > table at once and throw away the unneeded parts? > > Thanks in advance, > > Axel > > > Axel Wilhelm Berle > > e-mail: axelberle@xxxxxxxx > Tel: (office) +55 16 618.0090 > (mobile) +55 16 9964.6343 > > > > ===== > Axel Wilhelm Berle > > e-mail: axelberle@xxxxxxxx > Tel: (office) +55 16 618.0090 > (mobile) +55 16 9964.6343 > > __________________________________________________________________ > > Gesendet von Yahoo! Mail - http://mail.yahoo.de > Logos und Klingeltöne fürs Handy bei > http://sms.yahoo.de > > ATTACHMENT part 2 application/x-pkcs7-signature name=smime.p7s ===== Axel Wilhelm Berle e-mail: axelberle@xxxxxxxx Tel: (office) +55 16 618.0090 (mobile) +55 16 9964.6343 __________________________________________________________________ Gesendet von Yahoo! Mail - http://mail.yahoo.de Logos und Klingeltöne fürs Handy bei http://sms.yahoo.de
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