Supported Transaction Isolation Levels in Oracle


What Are Transaction Isolation Levels Supported by Oracle in Oracle?



Oracle supports two transaction isolation levels:

  • READ COMMITTED (the default option). If the transaction contains DML that requires row locks held by another transaction, then the DML statement waits until the row locks are released.
  • SERIALIZABLE. If a serializable transaction contains data manipulation language (DML) that attempts to update any resource that may have been updated in a transaction uncommitted at the start of the serializable transaction, then the DML statement fails.


⇒Understanding SQL Transaction Management in Oracle

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2019-08-19, 1246👍, 0💬