Re: JDBC2 driver failure

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От Wadhwa, Amit
Тема Re: JDBC2 driver failure
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Msg-id D84C5C69F2723B43BD7AAFA63D4012BA64EF3B@blrx2kmbgl101.blr.amer.dell.com
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Ответ на JDBC2 driver failure  (Haig Ehramdjian <haige@cae.com>)
Список pgsql-jdbc
use a different statement object for the nested resultset.
ie.
ResultSet rs = null;
ResultSet rs2 = null;
Statement stmt = con.createStatement();
Statement stmt2 = con.createStatement();

rs = stmt.executeQuery("myQuery");

while (rs.next()) {
    //some processing
    String query = "blahblah";
    rs2 = stmt2.executeQuery(query);
}
-----Original Message-----
From: Haig Ehramdjian [mailto:haige@cae.com]
Sent: Wednesday, March 26, 2003 1:58 AM
To: Mailing List: PGSQL (E-mail)
Subject: [JDBC] JDBC2 driver failure


Hello,

I have some code that does the following:

ResultSet rs = stmt.executeQuery("myQuery");

while (rs.next()) {
    //some processing
    String query = "blahblah";
    ResultSet rs2 = stmt.executeQuery(query);
}

All the processing up to rs2 works fine, but the instant I try to get the
result set,
I get the following errors in my catalina.out log file on Tomcat4:

java.lang.NullPointerException
        at org.postgresql.jdbc2.ResultSet.next(ResultSet.java:113)
        at
org.apache.commons.dbcp.DelegatingResultSet.next(DelegatingResultSet.java)

Any ideas? This is part of an in-house app I'm building and seems to be the
last stumbling block.

Thanks a lot,
Haig Ehramdjian


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