Note: In this documentation, the
term “operation” refers to any SAS procedure, statement,
or command.
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.