Albert,
This Fails if vDatum has not already been dimensioned.
clear var vDatum -- clear the variable
SET VAR vdatum = (IFNULL(.vdatum,(.#DATE - 2),.vdatum))
-ERROR- Column or variable vdatum not found (2515)
-ERROR- Expression cannot be evaluated. (2179)
That was the reason for the method I posted. It has Always been that if good
programming practice wasn't employed as in setting the variable like:
Set var vDatum SomeDataType
Immediately prior to checking if it had a value of some kind, cause it would
always fail as above. In the absence of good practice (which I confess I
ignored for many years), I just used the expression:
SET VAR vcheckvar = .vTestVar
set var vCheckVar = (IFEQ('.',(SGET(.vcheckvar,1,1)), 'Not Exist', 'Exists'))
to check for the leading dot if the variable had not been dimensioned and being
too pigheaded to use the correct method as above...
