Thread: JDBC and MetaData and Primary Keys... oh my?

JDBC and MetaData and Primary Keys... oh my?

From
William Swaney
Date:
Hello All,

I'm sorry if this has come up before, but I tried searching the archives
and didn't see my question.

I'm using Postgres 6.5.1 on Linux with the appropriate JDBC driver for
jdk 1.2.x.

What I'm having trouble with is some of the JDBC DatabaseMetaData
methods.  Specifically, if I try the following:

primaryKeysResultSet = myDBMetaData.getPrimaryKeys( catalog, schema,
tableName );

The result returned is always empty.  Let's assume, I hope, that I
defined the table properly, eg:

create table test_table (column1        int4,column2        Varchar(25),PRIMARY KEY (column1)
);

Does anyone know if this should work?  If so, what should values for
catalog and schema be?  I get similar empty results when looking for
indexes.  Listing the tables in a database works fine though.

Any help is really appreciated!

Bill



-- 
Upon seeing the box was too small, Schroedinger's Elephant breathed a
sigh of relief.


RE: JDBC and MetaData and Primary Keys... oh my?

From
Peter Mount
Date:
As we don't use catalog's nor schemas yet (there's discussions about them on
hackers at the moment), you can set them to null.

It should give some result. I'll add it to the list of things to check.

Peter

--
Peter Mount
Enterprise Support
Maidstone Borough Council
Any views stated are my own, and not those of Maidstone Borough Council


-----Original Message-----
From: William Swaney [mailto:william@digitalsesame.com]
Sent: Wednesday, June 28, 2000 8:21 AM
To: pgsql-interfaces@postgresql.org
Subject: [INTERFACES] JDBC and MetaData and Primary Keys... oh my?


Hello All,

I'm sorry if this has come up before, but I tried searching the archives
and didn't see my question.

I'm using Postgres 6.5.1 on Linux with the appropriate JDBC driver for
jdk 1.2.x.

What I'm having trouble with is some of the JDBC DatabaseMetaData
methods.  Specifically, if I try the following:

primaryKeysResultSet = myDBMetaData.getPrimaryKeys( catalog, schema,
tableName );

The result returned is always empty.  Let's assume, I hope, that I
defined the table properly, eg:

create table test_table (column1        int4,column2        Varchar(25),PRIMARY KEY (column1)
);

Does anyone know if this should work?  If so, what should values for
catalog and schema be?  I get similar empty results when looking for
indexes.  Listing the tables in a database works fine though.

Any help is really appreciated!

Bill



-- 
Upon seeing the box was too small, Schroedinger's Elephant breathed a
sigh of relief.