Release 10.1A: OpenEdge Development:
Progress 4GL Reference

FIRST-DATA-SOURCE attribute

A handle to the first dynamic Data-source object created in the current OpenEdge session.

Data type: HANDLE

Access: Readable

Applies to: SESSION system handle

Use the NEXT-SIBLING attribute to get the next entry in the chain of dynamic Data-source object handles created in the current OpenEdge session.