Name
ping
Synopsis
$rc = $dbh->ping;
Attempts to determine, in a reasonably efficient way, if the database server is still running and the connection to it is still working. Individual drivers should implement this function in the most suitable manner for their database engine.
The current default implementation always returns true without
actually doing anything. Actually, it returns
"0
but
true“, which is true but zero. That way you
can tell if the return value is genuine or just the default. Drivers
should override this method with one that does the right thing for
their type of database.
Few applications would have use for this method. See the specialized
Apache::DBI module for one example usage.
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