SQL
Master SQL with This Quiz!
Test your knowledge of SQL concepts with our engaging quiz designed for learners and professionals alike. Whether you're brushing up on your skills or preparing for a certification, this quiz covers essential SQL topics such as joins, procedures, and embedded SQL.
- 10 insightful questions
- Multiple-choice format for easy answering
- Receive instant feedback on your answers
1. What type of join is needed when you wish to include rows that do not have matching values?
A. Outer join
B. Equi-join
C. Natural 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. Outer join
B. Equi-join
C. Natural 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.
6. Which of the following is one of the basic approaches for joining tables?
A. Subqueries
B. Union Join
C. Natural join
D. All of the above
7. Which of the following is true concerning systems information in an RDBMS?
A. RDBMS store database definition information in system-created tables.
B. This information can be accessed using SQL.
C. This information often cannot be updated by a user.
D. All of the above.
8. Embedded SQL is which of the following?
A. Hard-coded SQL statements in a program language such as Java.
B. The process of making an application capable of generating specific SQL code on the fly.
C. Hard-coded SQL statements in a procedure.
D. Hard-coded SQL statements in a trigger.
9. How many tables may be included with a join?
A. One
B. Two
C. Three
D. All of the above.
10. The following SQL is which type of join: SELECT CUSTOMER_T. CUSTOMER_ID, ORDER_T. CUSTOMER_ID, NAME, ORDER_ID FROM CUSTOMER_T,ORDER_T ;
A. Equi-join
B. Natural join
C. Outer join
D. Cartesian join
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