Testing a DB connection

Andre Garzia andre at andregarzia.com
Wed May 26 12:23:38 CDT 2010


Alex,

I know sqlYoga does that and if the connection died, it tries to reopen it
but I don't know the implementation details.

Andre

On Wed, May 26, 2010 at 1:50 PM, Alex Adams <alex at a2technology.com> wrote:

> Does anyone have a simple technique for testing to see if a DB connection
> is
> still functioning before trying to use it to execute some SQL?
>
> I have an app that accesses hosted databases directly (postgres).  Users
> logon at app startup.  If they let the app sit for long enough, the
> connection to the DB server is dropped.  This is reasonable, but I want a
> simple way of testing to see if the connection has been dropped and if it
> has to reestablish the connection transparently before executing SQL
> statements.
>
> I need a simple isDBStillThere handler.  Is anyone doing anything similar?
>
> Thanks,
> --
> Alex Adams
>
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>
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