Oracle DBA FAQ - Understanding SQL Transaction Management

A collection of 22 FAQs on Oracle SQL SELECT query statements. Clear answers are provided with tutorial exercises on starting and ending transactions, committing and rolling back transactions, transaction/statement-level read consistency, read committed isolation level, locks and dead locks.

1. What Is a Transaction?
2. How To Start a New Transaction?
3. How To End the Current Transaction?
4. How To Create a Testing Table?
5. How To Commit the Current Transaction?
6. How To Rollback the Current Transaction?
7. What Happens to the Current Transaction If a DDL Statement Is Executed?
8. What Happens to the Current Transaction If the Session Is Ended?
9. What Happens to the Current Transaction If the Session Is Killed?
10. How Does Oracle Handle Read Consistency?
11. What Is a READ WRITE Transaction?
12. What Is a READ ONLY Transaction?
13. How To Set a Transaction To Be READ ONLY?
14. What Are the Restrictions in a READ ONLY Transaction?
15. What Are the General Rules on Data Consistency?
16. What Are Transaction Isolation Levels Supported by Oracle?
17. What Is a Data Lock?
18. How Data Locks Are Respected?
19. How To Experiment a Data Lock?
20. How To View Existing Locks on the Database?
21. What Is a Dead Lock?
22. How Oracle Handles Dead Locks?

----->Answers