Which variable is a handle to a database object?(a) $dbh(b) $sth(c) $fh(d) $hI have been asked this question during an interview for a job.My question is based upon Date and Time Data Types topic in portion Data Type Reference, Operators and Functions of MySQL

Which variable is a handle to a database object?(a) $dbh(b) $sth(c) $f

1.	Which variable is a handle to a database object?(a) $dbh(b) $sth(c) $fh(d) $hI have been asked this question during an interview for a job.My question is based upon Date and Time Data Types topic in portion Data Type Reference, Operators and Functions of MySQL
Answer» The 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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