Case
statement. A comparison block always evaluates to either TRUE or FALSE.Diag*
will match all variables that begin with "Diag"String
comparisons are lexicographically ordered, other data types are based on the numeric order of that value. You may only have one left and one right expression when utilizing these operatorsstring(s)
in the left hand expression matches specified pattern(s) in the right hand expression. The pattern may contain the following characters:NULL
here.