Saving all output to "!!{outputDirectory}!!/udf_isnull.q.raw". Enter "record" with no arguments to stop it.
>>>  !run !!{qFileDirectory}!!/udf_isnull.q
>>>  DESCRIBE FUNCTION isnull;
'tab_name'
'isnull a - Returns true if a is NULL and false otherwise'
1 row selected 
>>>  DESCRIBE FUNCTION EXTENDED isnull;
'tab_name'
'isnull a - Returns true if a is NULL and false otherwise'
1 row selected 
>>>  !record