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Using sp_getapplock outside a transaction

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Hello, all

According  to  the  documentation  for sp_getapplock
available at

  https://docs.microsoft.com/en-us/sql/relational-databases/system-stored-procedures/sp-getapplock-transact-sql

  lock_owner is  nvarchar(32).   The  value  can  be
  Transaction  (the  default)  or Session.  When the
  lock_owner value is  Transaction,  by  default  or
  specified  explicitly,  sp_getapplock must be exe-
  cuted from within a transaction.

When I try, however, to get a lock owned by the ses-
sion outside a transaction:

  EXEC sp_getapplock 'test', 'Exclusive', @LockOwner = 'Session'
  EXEC sp_releaseapplock 'test'

it fails with:

  The  statement or function must be executed in the
  context of a user transaction.

Does not this behavor it contradict  the  documenta-
tion?

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Using sp_getapplock outside a transaction Anton Shepelev <anton.txt@gmail.com> - 2017-11-25 14:56 +0300

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