Hi,

On Mon, Nov 11, 2002 at 02:52:02AM -0700, Mark Stringham wrote:
> I wonder if there is an more efficient way to do the following:
> I have 2 tables -
> 
> The user submits a new record into table A and an id (primary key) is
> created using the auto-increment.
> At the time that the new record is created in table A I need to insert the
> newly created id from table A into a column in table B. Is there a way to do
> this without performing multiple queries to either table?
> 

INSERT INTO A VALUES(NULL, ...);
UPDATE B SET COLUMNA = LAST_INSERT_ID();

or

INSERT INTO A VALUES(NULL, ...);
INSERT INTO B VALUES(LAST_INSERT_ID(), ...);


You need one query per table. LAST_INSERT_ID is kept per connection,
not per table, so you can safely use it like this.

Regards,

Fred.

-- 
Fred van Engen                              XB Networks B.V.
email: [EMAIL PROTECTED]                Televisieweg 2
tel: +31 36 5462400                         1322 AC  Almere
fax: +31 36 5462424                         The Netherlands

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