Library /sys$common/syshlp/CDDLHELP.HLB — VALID_FOR_DATATRIEVE_IF, Example
In the following example, the VALID FOR DATATRIEVE IF clause causes
VAX DATATRIEVE to accept only positive integers for the field
TRANSACTION_COUNT.
TRANSACTION_COUNT DATATYPE IS UNSIGNED WORD
VALID FOR DTR IF
"TRANSACTION_COUNT > 0".