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In this isolation level, uncommitted updates may be lost, which makes a transaction unrestorable (cannot be rolled back) because the data are committed before the end of the transaction. CUBRID does not support this isolation level because this can cause the updates made by the user to be lost. However, if this isolation level is specified, CUBRID provides an appropriate level to the user application.

The following are the rules of this isolation level:

  • A transaction does not overwrite an object being modified by another transaction.

Note A transaction can be restored in all supported isolation levels because updates are not committed before the end of the transaction.