@name = $query ->param([ parameter [ newvalue1, newvalue2, ... ] ])
The array to contain the parameter names.
An optional single parameter to fetch. When used with no arguments,
param
returns a list of all known parameter names.
The optional new values to assign to the parameter.
Using named parameters, the syntax is:
or:$query->param(-name=>' parameter ', -value=>' newvalue ');
$query->param(-name=>' parameter ', -values=>' newvalue1 ', ' newvalue2 ', ...);