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| Date | Fri, 28 Nov 2014 09:36:53 +1100 |
| Subject | Re: Db transactions and locking |
| From | Chris Angelico <rosuav@gmail.com> |
| Cc | Python <python-list@python.org> |
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On Fri, Nov 28, 2014 at 5:02 AM, Ian Kelly <ian.g.kelly@gmail.com> wrote: > On Nov 27, 2014 4:26 AM, "Frank Millman" <frank@chagford.com> wrote: >> All Python database adaptors that I have used start a transaction when you >> open a cursor. I have just re-read DB-API 2.0, and I cannot see anything >> that specifies this behaviour, but AFAICT this is what happens. > > I don't know how others work, but cx_Oracle starts a transaction when you > execute a statement, not when you open a cursor. Is there any material difference here? I mean, sure, you have a transaction, it'll show up in logs and stuff, but without any locks, it's unlikely to have much impact on the system. Unless you're creating and destroying a bunch of unnecessary cursors all the time, of course, but that'd be wasteful for other reasons. ChrisA
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Re: Db transactions and locking Chris Angelico <rosuav@gmail.com> - 2014-11-28 09:36 +1100
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