Question: 8.2 Describe why database redesign is necessary. 8.11 Explain the meaning of the SQL EXISTS comparison operator. 8.18 Explain the process of reverse engineering. 8.25

8.2 Describe why database redesign is necessary.

8.11 Explain the meaning of the SQL EXISTS comparison operator.

8.18 Explain the process of reverse engineering.

8.25 Describe the process of changing a table name.

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