JetBeginTransaction2 Function

Artikkel
08/26/2021

Applies to: Windows | Windows Server

JetBeginTransaction2 Function

The JetBeginTransaction2 function causes a session to enter a transaction and create a new save point. This function can be called more than once in a single session to create additional save points. These save points can be used to selectively to keep or discard changes to the database.

    JET_ERR JET_API JetBeginTransaction2(
      __in          JET_SESID sesid,
      __in          JET_GRBIT grbit
    );

Parameters

sesid

The session to use for this call.

grbit

A group of bits that contain the options to be used for this call, which include zero or more of the following.

Value	Meaning
JET_bitTransactionReadOnly	The transaction will not modify the database. If an update is attempted, that operation will fail with JET_errTransReadOnly. This option is ignored unless it is requested when the given session is not already in a transaction. This option is only available as of Windows XP.

Return Value

This function returns the JET_ERR datatype with one of the following return codes. For more information about the possible ESE errors, see Extensible Storage Engine Errors and Error Handling Parameters.

Return code	Description
JET_errSuccess	The operation completed successfully.
JET_errClientRequestToStopJetService	It is not possible to complete the operation because all activity on the instance associated with the session has ceased as a result of a call to JetStopService.
JET_errInstanceUnavailable	It is not possible to complete the operation because the instance associated with the session has encountered a fatal error that requires that access to all data be revoked to protect the integrity of that data. This error will only be returned by Windows XP and later releases.
JET_errNotInitialized	It is not possible to complete the operation because the instance associated with the session has not been initialized yet.
JET_errRestoreInProgress	It is not possible to complete the operation because a restore operation is in progress on the instance associated with the session.
JET_errSessionSharingViolation	The same session cannot be used for more than one thread at the same time. This error will only be returned by Windows XP and later releases.
JET_errTermInProgress	It is not possible to complete the operation because the instance associated with the session is being shut down.
JET_errTransTooDeep	A new transaction cannot be started because the session is already at the maximum save point depth allowable by the database engine.

On success, the provided session will be inside a transaction. If the session was previously inside of a transaction then a new save point will be created.

On failure, the transactional state of the session will remain unchanged. No change to the database state will occur.

Remarks

For more information about how transactions work, see JetBeginTransaction.

Requirements

Requirement	Value
Client	Requires Windows Vista, Windows XP, or Windows 2000 Professional.
Server	Requires Windows Server 2008, Windows Server 2003, or Windows 2000 Server.
Header	Declared in Esent.h.
Library	Use ESENT.lib.
DLL	Requires ESENT.dll.

Del via

JetBeginTransaction2 Function