Questions: Which TCL statement should you use to establish a rollback position for a transaction in case the transaction fails? ROLLBACK COMMIT SET SAVEPOINT

Which TCL statement should you use to establish a rollback position for a transaction in case the transaction fails? ROLLBACK COMMIT SET SAVEPOINT
Transcript text: Which TCL statement should you use to establish a rollback position for a transaction in case the transaction fails? ROLLBACK COMMIT SET SAVEPOINT
failed

Solution

failed
failed

The answer is the fourth one: SAVEPOINT.

Explanation for each option:

  1. ROLLBACK: This statement is used to undo transactions that have not yet been saved to the database. It reverts the database to the last committed state. However, it does not establish a rollback position; it is used to roll back to a previously established position.

  2. COMMIT: This statement is used to save all the transactions to the database. Once a transaction is committed, it cannot be rolled back. Therefore, it does not establish a rollback position.

  3. SET: This is not a Transaction Control Language (TCL) statement. It is generally used in SQL to assign a value to a variable.

  4. SAVEPOINT: This statement is used to set a point within a transaction to which you can later roll back. It establishes a rollback position within a transaction, allowing partial rollbacks.

Summary: To establish a rollback position for a transaction in case the transaction fails, you should use the SAVEPOINT statement.

Was this solution helpful?
failed
Unhelpful
failed
Helpful

Questions asked by other users

failedAnswered
To add a PowerFlex 750-Series drive to an application that does not use Automatic Device Configuration (ADC), which electronic keying option should you choose to allow the replacement of a drive when the selected firmware revision level is not critical to operation? Exact Match Keying Compatible Keying Disabled Keying No Keying
failedAnswered
1. A motif is a. principal idea c. background b. implied meaning d. explanation 2. A sylvan nation, as Norway is said to be, is a. wild c. snowy b. northern d. forested 3. An effigy is a. a printed copy c. a reproduction b. a crude image 4. Surveillance requires careful a. mapping b. observation c. war planning d. documentation 5. The word equity most nearly means a. equivalence c. economical b. compassion d. fairness 6. A person who is agnostic is a. official c. skeptical b. political d. susceptible
failedAnswered
2024/FA World Civilizations I (HIST-2321-V02) 5 Identify the major economic activities that will develop in each of the following areas: - Mesopotamia - Egypt - South Asia - East Asia
failedAnswered
Question 7 10 pts Use Chapter 6, Section 2: Georgia as a Trustee Colony. The colonists that came over on charity could receive how many acres of land? 500 50 5000 250 Question 8 10 pts Use Chapter 6, Section 2: Georgia as a Trustee Colony. Some colonists began to complain about some of the Trustee's regulations.
failedAnswered
Which statement is true of globalization? Business ettiquette and communication norms vary from country to country. Globalization decreases a company's efficiencies. Globalization means it is more difficult to get products except for those produced in your own country. Globalization suppresses innovation.