You have just removed 1,700 rows from a table that were no longer needed. In order to save the changes you've made to the database, which of the following statements are used?
A. commit
B. set transaction
C. rollback
D. savepoint
Answer: A. commit
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A ____ is an environment in which you can create programs by dragging components such as buttons and labels onto a screen and arranging them visually.
A. visual development environment B. virtual development environment C. visual design environment D. virtual design environment
_____ measures the time between submitting a request for information and the fulfillment of the request.
A. Bandwidth B. Turnaround time C. Throughput D. Frequency
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