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Locking SAS Data Objects

SAS/SHARE Lock Manager Facility

Note:   In this documentation, the term "operation" refers to any SAS procedure, statement, or command.  [cautionend]

The SAS/SHARE lock manager facility enables multiple clients to share the same SAS file concurrently. Using a set of complex locking rules, the lock manager evaluates each incoming client request for access to SAS data objects while monitoring the status of all other client activities. The lock manager grants access to a specific data object by locking the data object, and denies all other requests for the locked data object until an operation has been executed or the lock has been cleared explicitly.

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