1. Change the last name of employee 3 to Drexler.

2. Change the salary to 1000 for all employees with a salary less than 900.

3. Make the data additions permanent. Update and delete data in the MY_EMPLOYEE table.

4. Delete Betty Dancs from the MY_EMPLOYEE tabl

5. Commit all pending changes. Control data transaction to the MY_EMPLOYEE table.

6. Populate the table with the last row of sample data by modifying the statements in the script that 
    you created in step 6. Run the statements in the script.

7. Confirm your addition to the table.

8. Mark an intermediate point in the processing of the transaction.

9. Empty the entire table.

10. Confirm that the table is empty.

11. Discard the most recent DELETE operation without discarding the earlier INSERT operation.

12. Confirm that the new row is still intact.