On Jun 30, 7:05 pm, mc <[EMAIL PROTECTED]> wrote:
> My problem is as follows:
> I select for something.
> If that row does not exists, I need to insert it.
> I want to avoid the situation where some other client inserts the row
> after I have selected (and found out it does not exist) but
> before I insert it myself.
>
> In direct SQL, I would LOCK the table for WRITE before the select, and
> release the locks after the insert.
>
> Can that be done through SQLAlchemy?

im not a fan of pessimistic locking but you can issue "LOCK TABLE" on
the connection easily enough.


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