From: | Rene Pijlman <rpijlman(at)wanadoo(dot)nl> |
---|---|
To: | "Carterette, Ben" <bcarterette(at)mail(dot)liberty(dot)k12(dot)mo(dot)us> |
Cc: | pgsql-jdbc(at)postgresql(dot)org |
Subject: | Re: select on multiple tables |
Date: | 2001-08-15 23:29:23 |
Message-ID: | v41mnt8ccedcnitlkemhc6es2lv386n0i0@4ax.com |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-jdbc |
On Wed, 15 Aug 2001 16:43:31 -0500, Ben Carterette wrote:
>I have a query like "SELECT * FROM table1, table2" and I want to read values
>out of a ResultSet. What if the two tables have column names in common and
>I can't predict the column numbers? Is there any way to get table1.id and
>table2.id? rs.getString tells me "The column name table1.id not found."
Does this also happen when you explicitly name the columns?
SELECT table1.id, ..., table2.id, ...
FROM table1, table2
Or if that doesn't help, try if a column label with the AS
clause works:
SELECT [ ALL | DISTINCT [ ON ( expression [, ...] ) ] ]
* | expression [ AS output_name ] [, ...]
http://www.postgresql.org/idocs/index.php?sql-select.html
SELECT table.id AS id1, ..., table2.id AS id2
FROM table1, table2
And then rs.getString("id1");
I think both solutions should work. Please let us know if they
don't.
Regards,
René Pijlman
From | Date | Subject | |
---|---|---|---|
Next Message | Barry Lind | 2001-08-15 23:58:42 | Re: [PATCHES] patch for JDBC PreparedStatement |
Previous Message | Carterette, Ben | 2001-08-15 21:43:31 | select on multiple tables |