From: Craig Ringer <craig@postnewspapers.com.au>
To: Marcin Krawczyk <jankes.mk@gmail.com>
Cc: pgsql-sql@postgresql.org
Subject: Re: error codes
Date: Thu, 17 Apr 2008 18:43:16 +0800
Message-ID: <480729C4.7040802@postnewspapers.com.au> (raw)
In-Reply-To: <95f6bf9b0804170123w271df42er3b377c1b9a3f0244@mail.gmail.com>
References: <95f6bf9b0804170123w271df42er3b377c1b9a3f0244@mail.gmail.com>
Marcin Krawczyk wrote:
> Hi guys. Does anyone know the error code for '/currval of sequence * is
> not yet defined in this session/' error ? Is there one at all?
A quick JDBC test program shows:
ERROR: currval of sequence "customer_id_seq" is not yet defined in this
session (SQLState: 55000)
which, looking up the error code in the docs:
http://www.postgresql.org/docs/current/static/errcodes-appendix.html
turns out to be:
55000 OBJECT NOT IN PREREQUISITE STATE
... which makes sense, but I wouldn't call blindingly and immediately
obvious.
Here's a trivial little utility for running a statement, catching an
error, and reporting the error along with the Pg error code. Sorry for
the horrible formatting (short lines for email).
--- Put in file `JdbcTest.java' ---
import java.sql.SQLException;
import java.sql.CallableStatement;
import java.sql.Connection;
import java.sql.DriverManager;
class JdbcTest {
public static void main(String[] args)
throws ClassNotFoundException, InterruptedException, SQLException
{
Class.forName("org.postgresql.Driver");
Connection c =
DriverManager.getConnection("jdbc://YOUR_PARAMS_HERE");
try {
CallableStatement st =
c.prepareCall("SELECT currval('customer_id_seq')");
st.execute();
} catch (SQLException ex) {
System.out.println(
"DB error string: " + ex.getMessage()
+ " (SQLState: " + ex.getSQLState() + ")");
}
}
}
---- end ----
You'll need the PostgreSQL JDBC driver.
To compile (assuming you don't use a Java IDE of some sort, but have the
JDK installed) run:
javac -d /out/dir JdbcTest.java
and to run (all on one line):
java -classpath /path/to/postgresql-8.3-603.jdbc4.jar:/out/dir JdbcTest
where /out/dir is wherever you want the generated .class file to be put.
--
Craig Ringer
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To: pgsql-sql@postgresql.org
Cc: craig@postnewspapers.com.au, jankes.mk@gmail.com
Subject: Re: error codes
In-Reply-To: <480729C4.7040802@postnewspapers.com.au>
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