<setvar [flags] $var $values>
setvar function sets the (single) variable named by
$values. It can be used in the rare situations
where the name of a variable cannot be determined until run time.
APPEND- values are appended to the end of the variable's current value list (and are cast to that type)
NOMSG- no putmsg will be issued if the value cannot be set
setvar function sets the single variable named by
$values, and returns nothing.
<SQL MAX=1 "select Name, Value from test where id=$id">
<setvar $Name $Value>
setvar function was added May 7 1997.
If a variable named in a
setvar call is not directly used in
the script (i.e. is not explicitly referenced with
it will not have any values since it is unknown.