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+--- Thread: Validation Rule to Confirm if Field Value Exists in DB Table (/showthread.php?tid=69750)
Validation Rule to Confirm if Field Value Exists in DB Table - natanfelles - 01-12-2018
The is_unique rule checks if a field already have a value to avoid duplicates.
What about a rule to confirm if a value exists in a table field?
That could be used to do relationship and validate for new rows that needs Foreign Keys.