Release 10.1A: OpenEdge Development:
ADM Reference

UpdatableColumnsByTable

A list of updatable columns in different tables, delimited by CHR(1) instead of a comma, that identifies which columns are from which table in the event of a join.

For example, if the query is a join of customer and order and the Name field from customer and the OrderNum and OrderData field from Order are updatable, then this property value equals Name<CHR(1)>OrderNum,OrderDate.

Data type: CHARACTER

Notes:

Read and Write.
If you want a comma separated list of the updatable columns for the SmartDataObject (SDO), use the UpdatableColumns property.