Rigorous Mysql Test - 84+ MCQs: MySQL test: Assess Your Database Skills with MySQL Questions and Answers

1. Which SQL statement is used to delete data from a table?

DELETE

UPDATE

INSERT

SELECT

2. In SQL, what is a foreign key?

A key used to sort rows in a table

A key that uniquely identifies a row in a table

A key used to join multiple tables

A key that establishes a link between two tables

3. What is the purpose of the MySQL LIMIT clause?

To limit the number of rows returned by a query

To filter data

To group rows that have the same values

To create a new table

4. In SQL, what is the purpose of the JOIN ON clause?

To specify the columns to be included in the result set

To specify the tables to be joined

To specify the conditions for joining two or more tables

To order the result set

5. Which SQL operator is used to combine rows from two or more tables based on a related column between them?

AND

NOT

JOIN

6. Which SQL statement is used to modify existing records in a table?

INSERT

UPDATE

DELETE

ALTER

7. What is the purpose of the MySQL ROLLBACK statement?

To save changes made during a transaction

To cancel a transaction and undo changes made

To create a new table

To delete data from a table

8. What is the purpose of the MySQL UNION operator?

To combine two or more SELECT statements into a single result set

To perform mathematical calculations

To delete rows from a table

To create a new table

9. Which SQL function is used to find the minimum value in a column?

COUNT()

SUM()

MIN()

MAX()

10. What is the purpose of the MySQL EXPLAIN statement?

To display information about the database schema

To explain the purpose of a query

To create a new table

To execute a stored procedure

MySQL MCQ Test 5