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Database - Advanced SQL

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Exercise

"Example is better than precept."
- (Proverb)
1. 

What type of join is needed when you wish to include rows that do not have matching values?
A. Equi-join
B. Natural join
C. Outer join
D. All of the above.
2. 

What type of join is needed when you wish to return rows that do have matching values?
A. Equi-join
B. Natural join
C. Outer join
D. All of the above.
3. 

Which of the following is true concerning a procedure?
A. You do not create them with SQL.
B. They do not need to have a unique name.
C. They include procedural and SQL statements.
D. They are the same thing as a function.
4. 

A CASE SQL statement is which of the following?
A. A way to establish an IF-THEN-ELSE in SQL.
B. A way to establish a loop in SQL.
C. A way to establish a data definition in SQL.
D. All of the above.
5. 

Which of the following statements is true concerning routines and triggers?
A. Both consist of procedural code.
B. Both have to be called to operate.
C. Both run automatically.
D. Both are stored in the database.

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