The Dbc::close method discards the cursor.
It is possible for the Dbc::close method to return
DB_LOCK_DEADLOCK, signaling that any enclosing transaction should
be aborted. If the application is already intending to abort the
transaction, this error should be ignored, and the application should
After Dbc::close has been called, regardless of its return, the
cursor handle may not be used again.
The Dbc::close method either returns a non-zero error value or throws an exception that
encapsulates a non-zero error value on failure, and returns 0 on success.
The Dbc::close method may fail and throw an exception or return a non-zero error for the following conditions:
- An invalid flag value or parameter was specified.
The cursor was previously closed.
If the operation was selected to resolve a deadlock, the
Dbc::close method will fail and
and either return DB_LOCK_DEADLOCK or
throw a DbDeadlockException exception.
The Dbc::close method may fail and throw an exception or return a non-zero error for errors specified for other Berkeley DB and C library or system methods.
If a catastrophic error has occurred, the Dbc::close method may fail and
either return DB_RUNRECOVERY or throw a
in which case all subsequent Berkeley DB calls will fail in the same way.
Database Cursors and Related Methods
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