Release 10.1A: OpenEdge Development:
Progress 4GL Handbook

Lock table resources

SHARE-LOCKs and EXCLUSIVE-LOCKs use up entries in a lock table maintained by the database manager. The possible number of entries in the lock table defaults to 500. You can change this number using the Lock Table Entries (-L) startup parameter for your OpenEdge session. Progress stops a program if it attempts to access a record that causes it to overflow the lock table.