MySQL Questions and Answers
MySQL database questions with answers focus on SQL queries, data manipulation, and database design — essential skills for any software developer. These programming questions and answers with explanations cover SELECT, JOIN, GROUP BY, indexes, and stored procedures. Practicing MySQL aptitude test questions improves your ability to write efficient queries and solve practical database problems. Ideal for TCS, Infosys, and Accenture placement preparation, these MCQs and exercises strengthen your command over relational database concepts, ensuring success in both programming interviews and technical assessments.
MySQL
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36 questions
31. The USE command?
- Is used to load code from another file
- Has been deprecated and should be avoided for security reasons
- Is a pseudonym for the SELECT command
- Should be used to choose the database you want to use once you've connected to MySQL
32. Given an employees table as follows: emp_id emp_name 1 Brush 2 Jerrin what value will be return by below query ? Select count(*) from employees
- 3
- 2
- 1
- none of the above
33. The main MySQL program that does all the data handling is called?
- mysql.exe
- mysql
- mysqld
- httpd
34. A SELECT command without a WHERE clause returns?
- All the records from a table that match the previous WHERE clause
- All the records from a table, or information about all the records
- SELECT is invalid without a WHERE clause
- Nothing
35. MySQL Access security is controlled through?
- The ID that the user logged into the server through, and priveliges set up for that account.
- MySQL login accounts, and priveliges set for each account
- The normal login security is sufficient for MySQL, and it does not have any extra controls of its own.
- A table of valid IP addresses, and priveliges set up for each IP address
36. In a SELECT with a GROUP BY clause, a WHERE clause, and a HAVING clause, the WHERE conditions are applied before the HAVING conditions.
- True
- Fasle
- Either True or False
- None of the above