[PyKDE] Re: PyQt application freezing on long operations
apaku at gmx.de
Mon Jan 22 22:11:33 GMT 2007
On 22.01.07 21:25:20, Carlos Eduardo wrote:
> Hans-Peter Jansen <hpj <at> urpla.net> writes:
> > You're way to sparse with description of your environment/approaches to give
> > you helpful answers.
> > One nice thing of Qt3 QDataTables is, you don't need to care about the
> > number of rows, at least as long as the database[server] is fast enough to
> > deliver the first bunch of records (500?). Qt manages the "fetch when used"
> > quite effective behind the scenes. I'm using it on tables with 60000
> > records without noticable delays - as long as I don't try to iterate
> > through the result set myself.
> > KR,
> > Pete
> I´m using Python 2.5, Qt4.2.2 and latest PyQt snapshot... i made the application
> DB access using sqlite3 and cx_Oracle modules, for each of them I created a
> class that has the same functionaliti for all DB´s (get tables, make queries,
> get indexes...) .. like a wrapper for underlying drivers.
Why? Qt and PyQt already include a wrapper around different databases.
Yes Oracle isn't available as default, but you could've written your own
database plugin for that instead of re-inventing the wheel for 2
databases. What if you want to add another DB, like MySQL, Postgres
You fill a much-needed gap.
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