Exclusive File Lock

This lock is displayed as FX in the LIST.READU output. The exclusive file lock affects other users as follows:

Table 1. Exclusive file locks
Lets other users acquire:	Prevents other users from acquiring:	Is ignored if you already own:
No locks	Shared record lock Update record lock Shared file lock Intent file lock Exclusive file lock	Exclusive file lock

In InfoSphere® DataStage® BASIC an exclusive file lock can be acquired from a shared file lock with a FILELOCK statement and released with a CLOSE, FILEUNLOCK, RELEASE, or STOP statement.