Release 10.1A: OpenEdge Development:
ADM Reference

hasForeignKeyChanged

Function that determines whether or not the dataSource Foreign fields are different from the current ForeignValues.

Location: data.p

Parameters: None

Returns: LOGICAL

Notes:

Returns TRUE if the dataSource Foreign fields are different from the current ForeignValues. If TRUE, the query needs to be reopened.
This function is an important part of the logic used with the dataAvailable when RESET is specified.
Returns FALSE if the dataSource has uncommitted changes.
Used by SmartBusinessObject (SBO) commitTransaction.