Re: updating before insert

Ed Pasma <[email protected]>
Newsgroups gmane.comp.python.db.pysqlite.user
Message-ID <[email protected]> 
Hello, here is just a side remark to one paragraph.

> The other problem where I  test first (select)I
> should also grab exclusive lock.  Then around all other queries I  
> should place a
> shared lock.

The other queries do not need a shared lock around them. It is taken  
implicitly. So they automatically wait until the exclusive lock is  
released, or until the timeout is expired.

Ed.
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