Networking
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 Reference Item| Description
               |
 DBUNLOCK()    | Release all locks for the current workarea
 DBUNLOCKALL() | Release all locks for all workareas
 FLOCK()       | Lock an open and shared database file
 NETERR()      | Determine if a network command has failed
 NETNAME()     | Return the current workstation identification
 RLOCK()       | Lock the current record in the active work area
 SET EXCLUSIVE | Establish shared or exclusive USE of database files
 UNLOCK        | Release file record locks set by the current user
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