Re: Problem asking columns allowing NULL values

Can you send me a small test program to demonstrate the problem?

Dave
On Tue, 2003-04-08 at 13:23, . wrote:
> Hello,
> I'm trying to ask a PostgreSQL server, using its JDBC driver, if the columns of
> a table allow NULL values. To do so, I look at the value of the field
> columnNullable (class ResultSetMetaData). Simply put, if I have a ResultSet
> "rs" filled with rows from a query, I do the following:
>
>
>
> ResultSetMetaData rsmeta = rs.getMetaData();
>
> if (rsmeta.columnNullable == 1)
> System.out.printl("null values allowed");
> else
> System.out.printl("null values NOT allowed");
>
>
>
> The result says that *all* columns allow NULL values, although I've defined
> several of them with the clause "NOT NULL" (I've checked that this columns does
> really not allow NULL values, trying INSERT statements with psql).
>
> I'm using the last stable release of the JDBC driver. Somebody else have
> suffered the same problem? Or I'm doing something wrong? I'd be very grateful
> if somebody could help me.
>
>
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--
Dave Cramer <Dave(at)micro-automation(dot)net>