Re: stringtype=unspecified problem

On Thu, 15 Feb 2007, Chris Gamache wrote:

> On 2/14/07, Kris Jurka <books@ejurka.com> wrote:
>> Here you're explicitly saying that it is a VARCHAR, not that you have a
>> String that you're not sure what the real type is.  It would be possible
>> to adjust setNull to check the stringtype setting and use Oid.UNSPECIFIED
>> here, but I'm not sure that would be correct.
>
> We've been batting this around in the office as well. I wish I knew
> what the absolute correct behavior would be in this situation.
>
> An observation that might be insightful is if I can figure out how
>
> setString(1,null);
>
> differs from
>
> setNull(1,java.sql.Types.VARCHAR);
>

What would you expect to happen for these two:

setObject(1, "hi", Types.VARCHAR);
setObject(1, null, Types.VARCHAR);

compared with:

setObject(1, "hi");
setObject(1, null);

By specifying the type you're saying that it really is a VARCHAR, not
indicating that it's an unknown type in a String representation.

Kris Jurka