How Data Locks Are Respected in Oracle
Q
How Data Locks Are Respected in Oracle?
✍: FYIcenter.com
A
Here are the rules on how data locks are respected:
- All statements ignore data locks owned its own transaction.
- SELECT query statements ignores data locks owned by any transactions.
- INSERT, UPDATE, and DELETE statements in a READ COMMITTED transaction will wait for data locks on their targeted rows by other transactions to be released.
- INSERT, UPDATE, and DELETE statements in a SERIALIZABLE transaction will fail if their targeted rows has data locks owned by other transactions.
2016-10-16, 412👍, 0💬
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