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Groups > comp.lang.java.databases > #234
| From | "David Harper" <david.harper@THRWHITE.remove-dii-this> |
|---|---|
| Subject | Re: can I tell resultset |
| Message-ID | <XNfwk.53653$E41.17298@text.news.virginmedia.com> (permalink) |
| Newsgroups | comp.lang.java.databases |
| References | <7a71653a-f208-488c-87a1-7ccc08f11f51@k30g2000hse.googlegroups |
| Date | 2011-04-27 15:22 +0000 |
| Organization | TDS.net |
To: comp.lang.java.databases kishjeff wrote: > Hi. > > I'm using java 1.4.2 JVM talking via thin client to oracle 10.2.0.2 (I > think this db flavor is irrelevant though). > I have a statement that is normal (forward etc from generic > 'java.sql.Connection.createStatement()' invocation). > I'm sure there should be results, but the invocation of: > "while (theResults.next()) " is not returning any rows. > > I'm not sure how to troubleshoot this deeper, i.e. why I'm not getting > any rows back. > > Can someone offer a pointer, advice etc? Have you tried running the query by hand using the command-line client SQL*Plus? Or running a "select count(*) from ..." query using the same table(s) and "where" clause, to count the number of rows which meet the conditions? Those are the first two things that I try when I'm faced with a mysteriously-empty result set. David Harper Cambridge, England --- * Synchronet * The Whitehouse BBS --- whitehouse.hulds.com --- check it out free usenet! --- Synchronet 3.15a-Win32 NewsLink 1.92 Time Warp of the Future BBS - telnet://time.synchro.net:24
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Re: can I tell resultset "David Harper" <david.harper@THRWHITE.remove-dii-this> - 2011-04-27 15:22 +0000
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