Review Questions:
1. Explain the syntax of a nested IF statement.
2. In what situations would want to use a nested IF statement?
3. Explain the syntax of an IF THEN ELSIF ladder.
4. How do you compensate for not having curly braces like C language in PL/SQL?
5. How many END IF statements are required in a PL/SQL block?
6. Is END IF always followed by a semi-colon?
7. Write a PL/SQL code to implement an IF THEN ELSIF ladder.

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