Oracle
1Z0-062 · Question #252
1Z0-062 Question #252: Real Exam Question with Answer & Explanation
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Managing Data and Concurrency
Question
The HR user updates the salary of one of the employees in the non-partitioned EMPLOYEES table, but does not commit the transaction. Which two types of lock exist in this situation?
Options
- Aexclusive lock on the EMPLOYEES table
- Bnull lock on the row being updated
- Cnull lock on the EMPLOYEES table
- Drow level lock on the row being updated
- Eshared lock on the EMPLOYEES table
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Topics
#row locks#table locks#transaction locks#concurrency