SELECT id INTO @row_id FROM myTable WHERE <blah blah> LIMIT 1;
Source
http://dev.mysql.com/doc/refman/5.5/en/select-into-statement.html
On Sep 21, 2011, at 2:23 PM, Brandon Phelps wrote:
> Hello all,
>
> I would like to create a stored procedure that does the following:
>
> 1. Accepts 4 values as parameters
> 2. SELECTS 1 record (LIMIT 1) from a table where the 4 parameters match fields in
> that table
> a. If a record was returned then UPDATE the table
> b. If a record was not returned then INSERT into a different table
>
> My main question here is how can I execute a SELECT id FROM ... LIMIT 1 statement
> within a stored procedure then use the returned id field later in the procedure?
>
> Something like this:
>
> @row_id = SELECT id FROM myTable WHERE <blah blah> LIMIT 1;
>
> IF @row_id != nothing THEN
> UPDATE myTable ...
> ELSE
> INSERT INTO anotherTable ...
> END IF
>
> So if no rows were returned from the select I perform the ELSE block, otherwise I
> perform the main IF block.
>
> Thanks!
>
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