Re: Select for update

This update, sorry forgot to include FOR UPDATE part

UPDATE table1 set status_id=13 WHERE id= ( SELECT id FROM table2 where
status_id=1 LIMIT 1 *FOR UPDATE*) RETURNING id into v_id;

On Wed, May 26, 2021 at 2:27 PM David G. Johnston <
david(dot)g(dot)johnston(at)gmail(dot)com> wrote:

>
> On Wednesday, May 26, 2021, Yambu <hyambu(at)gmail(dot)com> wrote:
>
>> Hello
>>
>> May i know if i run the update below if the row select in SELECT FOR
>> UPDATE will not be available for selection during update?
>>
>> UPDATE table1 set status_id=13 WHERE id= ( SELECT id FROM table2 where
>> status_id=1 LIMIT 1) RETURNING id into v_id;
>>
>
> Which update? The way it works is by locking - Ihe row is available but
> locked and may require waiting.
>
> David J.
>