Обсуждение: null date fields

Its every time a big problem when porting data from
another databases to PostgreSQL.

I ever need translate null date fields to "NULL" string,
instead the normal '' sintaxe.

Considering this table:

CREATE TABLE order (order_id int4, sale date);


This causes error:

INSERT INTO order (order_id, sales) VALUES (1,'');

And I need write codes for translate the porting to:

INSERT INTO order (order_id, sales) VALUES (1,NULL);


Has any place to change this in configuration directory ?


((I need say that´s my English is soo poor ?? :-))

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Marco Tulio
Desenvolvimento de sistemas para Internet


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Marco Tulio writes:

> Its every time a big problem when porting data from
> another databases to PostgreSQL.
>
> I ever need translate null date fields to "NULL" string,
> instead the normal '' sintaxe.

It's not normal, it's wrong.

> Has any place to change this in configuration directory ?

No.  You probably want to convince that other database to follow the
standard.

--
Peter Eisentraut   peter_e@gmx.net