160+ Mysql MCQ With Online Practice Test

MySQL is an open-source relational database management system (RDBMS) that has been a cornerstone of web applications and data-driven solutions for over two decades. Developed by Oracle, MySQL offers a robust and efficient platform for storing, managing, and retrieving structured data. Its features include support for SQL, high performance, scalability, and extensive community support. MySQL is widely used for web development, e-commerce, content management systems, and more, making it a versatile and trusted database solution for organizations of all sizes, from startups to large enterprises.

Practice Test

51. What is the primary purpose of using indexes in MySQL?

Answer: To optimize query performance

52. Which type of index in MySQL allows for faster retrieval of rows but may slow down INSERT and UPDATE operations?

Answer: B-tree index

53. When is it appropriate to use a full-text index in MySQL?

Answer: When searching for partial text matches

54. Which MySQL statement is used to create an index on a table?


55. In MySQL, which type of join is generally the most efficient when optimizing queries with multiple tables?


56. Which MySQL command is used to analyze and optimize the performance of queries and the tables they involve?


57. When creating composite indexes in MySQL, which column should be listed first in the index definition for the best optimization results?

Answer: The column with the highest cardinality

58. Which storage engine in MySQL is known for its excellent performance with read-heavy workloads and supports MyISAM and MEMORY table types?

Answer: MyISAM

59. In MySQL, which SQL command can be used to remove an index from a table?


60. Which MySQL feature helps avoid full table scans and improve query performance by remembering the results of previous queries?

Answer: Query Cache
Topic Tags