1.

The variable that is a handle to a database object is ______________(a) $dbh(b) $sth(c) $fh(d) $h

Answer» Correct choice is (a) $dbh

For explanation I would say: The variable named ‘$dbh’ is a handle to an open file. ‘$h’ is a generic handle and the meaning depends on context. ‘$dbh’ is a handle to a database object. ‘$sth’ is a handle to a query object.


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