Обсуждение: "NULL value without indicator"

I typed in "NULL value without indicator" into the
postgresql.org site and received 5 responses, all
having to do with error codes and structures.  Which
is fine and informative.  But,where do I find what
causes this problem and how to solve it?

Thanks,
Lynn

Lynn.Tilby@asu.edu wrote:
> I typed in "NULL value without indicator" into the
> postgresql.org site and received 5 responses, all
> having to do with error codes and structures.  Which
> is fine and informative.  But,where do I find what
> causes this problem and how to solve it?

I've never used ecpg myself, but it looks like the answer is found here
(see 30.6.4. Indicators):
http://www.postgresql.org/docs/current/static/ecpg-variables.html

HTH,

Joe

Joe,

This looks like it will solve the problem.

Thanks,
Lynn

Quoting Joe Conway <mail@joeconway.com>:

> Lynn.Tilby@asu.edu wrote:
> > I typed in "NULL value without indicator" into the
> > postgresql.org site and received 5 responses, all
> > having to do with error codes and structures.  Which
> > is fine and informative.  But,where do I find what
> > causes this problem and how to solve it?
>
> I've never used ecpg myself, but it looks like the answer is found here
>
> (see 30.6.4. Indicators):
> http://www.postgresql.org/docs/current/static/ecpg-variables.html
>
> HTH,
>
> Joe
>
>
>
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