{"id":1461,"date":"2025-07-10T13:19:47","date_gmt":"2025-07-10T13:19:47","guid":{"rendered":"https:\/\/itxperts.co.in\/blog\/?p=1461"},"modified":"2026-02-04T04:47:08","modified_gmt":"2026-02-04T04:47:08","slug":"top-50-mysql-practice-questions-and-answers-for-cbse-cs-ip-board-exam-itxperts","status":"publish","type":"post","link":"https:\/\/itxperts.co.in\/blog\/top-50-mysql-practice-questions-and-answers-for-cbse-cs-ip-board-exam-itxperts\/","title":{"rendered":"Top 50+ MySQL Practice Questions and Answers for CBSE CS\/IP Board Exam – Itxperts"},"content":{"rendered":"\n
<\/blockquote>\n\n\n\n

Scenario-Based Questions<\/strong><\/h3>\n\n\n\n

For the following questions, consider this database schema with four tables: EMPLOYEE<\/strong><\/code>, DEPARTMENT<\/strong><\/code>, GRADE<\/strong><\/code>, and PROJECT<\/strong><\/code>.<\/p>\n\n\n\n

Table: EMPLOYEE<\/span><\/strong><\/p>\n\n\n\n

EMPNO<\/sup><\/td>ENAME<\/sup><\/td>JOB<\/sup><\/td>MGR<\/sup><\/td>HIREDATE<\/sup><\/td>SAL<\/sup><\/td>COMM<\/sup><\/td>DEPTNO<\/sup><\/td><\/tr><\/thead>
7369<\/sup><\/td>SMITH<\/sup><\/td>CLERK<\/sup><\/td>7902<\/sup><\/td>1980-12-17<\/sup><\/td>800<\/sup><\/td>NULL<\/sup><\/td>20<\/sup><\/td><\/tr>
7499<\/sup><\/td>ALLEN<\/sup><\/td>SALESMAN<\/sup><\/td>7698<\/sup><\/td>1981-02-20<\/sup><\/td>1600<\/sup><\/td>300<\/sup><\/td>30<\/sup><\/td><\/tr>
7521<\/sup><\/td>WARD<\/sup><\/td>SALESMAN<\/sup><\/td>7698<\/sup><\/td>1981-02-22<\/sup><\/td>1250<\/sup><\/td>500<\/sup><\/td>30<\/sup><\/td><\/tr>
7566<\/sup><\/td>JONES<\/sup><\/td>MANAGER<\/sup><\/td>7839<\/sup><\/td>1981-04-02<\/sup><\/td>2975<\/sup><\/td>NULL<\/sup><\/td>20<\/sup><\/td><\/tr>
7654<\/sup><\/td>MARTIN<\/sup><\/td>SALESMAN<\/sup><\/td>7698<\/sup><\/td>1981-09-28<\/sup><\/td>1250<\/sup><\/td>1400<\/sup><\/td>30<\/sup><\/td><\/tr>
7698<\/sup><\/td>BLAKE<\/sup><\/td>MANAGER<\/sup><\/td>7839<\/sup><\/td>1981-05-01<\/sup><\/td>2850<\/sup><\/td>NULL<\/sup><\/td>30<\/sup><\/td><\/tr>
7782<\/sup><\/td>CLARK<\/sup><\/td>MANAGER<\/sup><\/td>7839<\/sup><\/td>1981-06-09<\/sup><\/td>2450<\/sup><\/td>NULL<\/sup><\/td>10<\/sup><\/td><\/tr>
7788<\/sup><\/td>SCOTT<\/sup><\/td>ANALYST<\/sup><\/td>7566<\/sup><\/td>1987-04-19<\/td>3000<\/td>NULL<\/td>20<\/td><\/tr>
7839<\/td>KING<\/sup><\/td>PRESIDENT<\/sup><\/td>NULL<\/sup><\/td>1981-11-17<\/sup><\/td>5000<\/sup><\/td>NULL<\/sup><\/td>10<\/sup><\/td><\/tr>
7844<\/sup><\/td>TURNER<\/sup><\/td>SALESMAN<\/sup><\/td>7698<\/sup><\/td>1981-09-08<\/sup><\/td>1500<\/sup><\/td>0<\/sup><\/td>30<\/sup><\/td><\/tr>
7876<\/sup><\/td>ADAMS<\/sup><\/td>CLERK<\/sup><\/td>7788<\/sup><\/td>1987-05-23<\/sup><\/td>1100<\/sup><\/td>NULL<\/sup><\/td>20<\/sup><\/td><\/tr>
7900<\/sup><\/td>JAMES<\/sup><\/td>CLERK<\/sup><\/td>7698<\/sup><\/td>1981-12-03<\/sup><\/td>950<\/sup><\/td>NULL<\/sup><\/td>30<\/sup><\/td><\/tr>
7902<\/sup><\/td>FORD<\/sup><\/td>ANALYST<\/sup><\/td>7566<\/sup><\/td>1981-12-03<\/sup><\/td>3000<\/sup><\/td>NULL<\/sup><\/td>20<\/sup><\/td><\/tr>
7934<\/sup><\/td>MILLER<\/sup><\/td>CLERK<\/td>7782<\/td>1982-01-23<\/td>1300<\/td>NULL<\/td>10<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Table: DEPARTMENT<\/span><\/strong><\/p>\n\n\n\n

DEPTNO<\/td>DNAME<\/td>LOC<\/td><\/tr><\/thead>
10<\/td>ACCOUNTING<\/td>NEW YORK<\/td><\/tr>
20<\/td>RESEARCH<\/td>DALLAS<\/td><\/tr>
30<\/td>SALES<\/td>CHICAGO<\/td><\/tr>
40<\/td>OPERATIONS<\/td>BOSTON<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Table: GRADE<\/span><\/strong> (Represents Salary Grade)<\/p>\n\n\n\n

GRADE<\/td>LOSAL<\/td>HISAL<\/td><\/tr><\/thead>
1<\/td>700<\/td>1200<\/td><\/tr>
2<\/td>1201<\/td>1400<\/td><\/tr>
3<\/td>1401<\/td>2000<\/td><\/tr>
4<\/td>2001<\/td>3000<\/td><\/tr>
5<\/td>3001<\/td>9999<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\n\n\n\n

Section 1: Basic SELECT Queries<\/span><\/strong><\/h3>\n\n\n\n
    \n
  1. Q:<\/strong> Display all information about all employees. <\/strong>
    A:<\/strong> SELECT * FROM EMPLOYEE;<\/code><\/li>\n\n\n\n
  2. Q:<\/strong> Display the employee number, name, and salary of all employees. <\/strong>
    A:<\/strong> SELECT EMPNO, ENAME, SAL FROM EMPLOYEE;<\/code><\/li>\n\n\n\n
  3. Q:<\/strong> Display the unique job titles from the EMPLOYEE<\/code> table.<\/strong>
    A:<\/strong> SELECT DISTINCT JOB FROM EMPLOYEE;<\/code><\/li>\n\n\n\n
  4. Q:<\/strong> Display the employee name and their annual salary (SAL * 12). <\/strong>
    A:<\/strong> SELECT ENAME, SAL * 12 AS AnnualSalary FROM EMPLOYEE;<\/code><\/li>\n\n\n\n
  5. Q:<\/strong> Display the details of all employees from department number 10.<\/strong>
    A:<\/strong> SELECT * FROM EMPLOYEE WHERE DEPTNO = 10;<\/code><\/li>\n\n\n\n
  6. Q:<\/strong> Display the name and job of employees who are ‘CLERK’. <\/strong>
    A:<\/strong> SELECT ENAME, JOB FROM EMPLOYEE WHERE JOB = 'CLERK';<\/code><\/li>\n\n\n\n
  7. Q:<\/strong> Display the name of employees whose name starts with ‘S’.<\/strong>
    A:<\/strong> SELECT ENAME FROM EMPLOYEE WHERE ENAME LIKE 'S%';<\/code><\/li>\n\n\n\n
  8. Q:<\/strong> Display the name of employees where the second letter of their name is ‘L’. <\/strong>
    A:<\/strong> SELECT ENAME FROM EMPLOYEE WHERE ENAME LIKE '_L%';<\/code><\/li>\n\n\n\n
  9. Q:<\/strong> Display the name of employees who have ‘AR’ in their name. <\/strong>
    A:<\/strong> SELECT ENAME FROM EMPLOYEE WHERE ENAME LIKE '%AR%';<\/code><\/li>\n\n\n\n
  10. Q:<\/strong> Display the details of employees who were hired in the year 1981. <\/strong>
    A:<\/strong> SELECT * FROM EMPLOYEE WHERE HIREDATE LIKE '1981%';<\/code><\/li>\n\n\n\n
  11. Q:<\/strong> Display the name and salary of employees who earn more than 2500. <\/strong>
    A:<\/strong> SELECT ENAME, SAL FROM EMPLOYEE WHERE SAL > 2500;<\/code><\/li>\n\n\n\n
  12. Q:<\/strong> Display the details of employees who are not ‘MANAGER’. <\/strong>
    A:<\/strong> SELECT * FROM EMPLOYEE WHERE JOB != 'MANAGER';<\/code> or SELECT * FROM EMPLOYEE WHERE JOB <> 'MANAGER';<\/code><\/li>\n\n\n\n
  13. Q:<\/strong> Display the details of employees who have a commission. <\/strong>
    A:<\/strong> SELECT * FROM EMPLOYEE WHERE COMM IS NOT NULL;<\/code><\/li>\n\n\n\n
  14. Q:<\/strong> Display the details of employees who do not have a manager. <\/strong>
    A:<\/strong> SELECT * FROM EMPLOYEE WHERE MGR IS NULL;<\/code><\/li>\n\n\n\n
  15. Q:<\/strong> Display the names of all employees from department 30 who are ‘SALESMAN’. <\/strong>
    A:<\/strong> SELECT ENAME FROM EMPLOYEE WHERE DEPTNO = 30 AND JOB = 'SALESMAN';<\/code><\/li>\n\n\n\n
  16. Q:<\/strong> Display the names of all ‘CLERK’s and ‘ANALYST’s. <\/strong>
    A:<\/strong> SELECT ENAME, JOB FROM EMPLOYEE WHERE JOB IN ('CLERK', 'ANALYST');<\/code><\/li>\n\n\n\n
  17. Q:<\/strong> Display the names of employees whose salary is between 1000 and 2000. <\/strong>
    A:<\/strong> SELECT ENAME, SAL FROM EMPLOYEE WHERE SAL BETWEEN 1000 AND 2000;<\/code><\/li>\n<\/ol>\n\n\n\n
    \n\n\n\n

    Section 2: Ordering and Grouping<\/span><\/strong><\/h3>\n\n\n\n
      \n
    1. Q:<\/strong> Display employee details sorted by their name in alphabetical order.<\/strong>
      A:<\/strong> SELECT * FROM EMPLOYEE ORDER BY ENAME;<\/code><\/li>\n\n\n\n
    2. Q:<\/strong> Display employee details sorted by department number, and then by salary in descending order.<\/strong>
      A:<\/strong> SELECT * FROM EMPLOYEE ORDER BY DEPTNO, SAL DESC;<\/code><\/li>\n\n\n\n
    3. Q:<\/strong> Display the total number of employees. <\/strong>
      A:<\/strong> SELECT COUNT(*) FROM EMPLOYEE;<\/code><\/li>\n\n\n\n
    4. Q:<\/strong> Find the total salary paid to all employees. <\/strong>
      A:<\/strong> SELECT SUM(SAL) FROM EMPLOYEE;<\/code><\/li>\n\n\n\n
    5. Q:<\/strong> Find the average salary of all employees. <\/strong>
      A:<\/strong> SELECT AVG(SAL) FROM EMPLOYEE;<\/code><\/li>\n\n\n\n
    6. Q:<\/strong> Find the maximum and minimum salary from the EMPLOYEE<\/code> table. <\/strong>
      A:<\/strong> SELECT MAX(SAL), MIN(SAL) FROM EMPLOYEE;<\/code><\/li>\n\n\n\n
    7. Q:<\/strong> Count the number of employees in each department. <\/strong>
      A:<\/strong> SELECT DEPTNO, COUNT(*) FROM EMPLOYEE GROUP BY DEPTNO;<\/code><\/li>\n\n\n\n
    8. Q:<\/strong> Find the average salary for each job type. <\/strong>
      A:<\/strong> SELECT JOB, AVG(SAL) FROM EMPLOYEE GROUP BY JOB;<\/code><\/li>\n\n\n\n
    9. Q:<\/strong> Find the total salary for each department. <\/strong>
      A:<\/strong> SELECT DEPTNO, SUM(SAL) FROM EMPLOYEE GROUP BY DEPTNO;<\/code><\/li>\n\n\n\n
    10. Q:<\/strong> Display the department numbers that have more than 3 employees. <\/strong>
      A:<\/strong> SELECT DEPTNO, COUNT(*) FROM EMPLOYEE GROUP BY DEPTNO HAVING COUNT(*) > 3;<\/code><\/li>\n\n\n\n
    11. Q:<\/strong> Display the jobs where the average salary is more than 2000. <\/strong>
      A:<\/strong> SELECT JOB, AVG(SAL) FROM EMPLOYEE GROUP BY JOB HAVING AVG(SAL) > 2000;<\/code><\/li>\n<\/ol>\n\n\n\n
      \n\n\n\n

      Section 3: Joins and Subqueries<\/span><\/strong><\/h3>\n\n\n\n
        \n
      1. Q:<\/strong> Display the employee name and their department name.<\/strong>
        A:<\/strong> SELECT E.ENAME, D.DNAME FROM EMPLOYEE E, DEPARTMENT D WHERE E.DEPTNO = D.DEPTNO;<\/code> or SELECT E.ENAME, D.DNAME FROM EMPLOYEE E JOIN DEPARTMENT D ON E.DEPTNO = D.DEPTNO;<\/code><\/em><\/li>\n\n\n\n
      2. Q:<\/strong> Display the employee name, department name, and location for all employees. <\/strong>
        A:<\/strong> SELECT E.ENAME, D.DNAME, D.LOC FROM EMPLOYEE E JOIN DEPARTMENT D ON E.DEPTNO = D.DEPTNO;<\/em><\/code><\/li>\n\n\n\n
      3. Q:<\/strong> Display the name of the employee and the name of their manager. <\/strong>
        A:<\/strong> SELECT E1.ENAME AS Employee, E2.ENAME AS Manager FROM EMPLOYEE E1 JOIN EMPLOYEE E2 ON E1.MGR = E2.EMPNO;<\/em><\/code><\/li>\n\n\n\n
      4. Q:<\/strong> Display the employee name, salary, and salary grade. <\/strong>
        A:<\/strong> SELECT E.ENAME, E.SAL, G.GRADE FROM EMPLOYEE E JOIN GRADE G ON E.SAL BETWEEN G.LOSAL AND G.HISAL;<\/code><\/li>\n\n\n\n
      5. Q:<\/strong> Display the employee name for those working in ‘NEW YORK’. <\/strong>
        A:<\/strong> SELECT E.ENAME FROM EMPLOYEE E JOIN DEPARTMENT D ON E.DEPTNO = D.DEPTNO WHERE D.LOC = 'NEW YORK';<\/code><\/li>\n\n\n\n
      6. Q:<\/strong> Find the name of the department where ‘SMITH’ works.<\/strong>
        A:<\/strong> SELECT D.DNAME FROM DEPARTMENT D JOIN EMPLOYEE E ON D.DEPTNO = E.DEPTNO WHERE E.ENAME = 'SMITH';<\/code><\/li>\n\n\n\n
      7. Q:<\/strong> Display the names of employees who earn more than ‘ALLEN’. (Subquery)<\/strong>
        A:<\/strong> SELECT ENAME FROM EMPLOYEE WHERE SAL > (SELECT SAL FROM EMPLOYEE WHERE ENAME = 'ALLEN');<\/code><\/li>\n\n\n\n
      8. Q: Display the names of employees who work in the same department as ‘SCOTT’. <\/strong>
        A:<\/strong> SELECT ENAME FROM EMPLOYEE WHERE DEPTNO = (SELECT DEPTNO FROM EMPLOYEE WHERE ENAME = 'SCOTT');<\/code><\/li>\n\n\n\n
      9. Q:<\/strong> Display the names of employees who have the same job as ‘JONES’. <\/strong>
        A:<\/strong> SELECT ENAME FROM EMPLOYEE WHERE JOB = (SELECT JOB FROM EMPLOYEE WHERE ENAME = 'JONES');<\/code><\/li>\n\n\n\n
      10. Q:<\/strong> Display the names of managers who manage more than 2 employees. <\/strong>
        A:<\/strong> SELECT MGR, COUNT(*) FROM EMPLOYEE GROUP BY MGR HAVING COUNT(*) > 2;<\/code><\/li>\n<\/ol>\n\n\n\n
        \n\n\n\n

        Section 4: Functions (String, Numeric, Date)<\/span><\/strong><\/h3>\n\n\n\n
          \n
        1. Q:<\/strong> Display the employee names in lowercase. <\/strong>
          A:<\/strong> SELECT LOWER(ENAME) FROM EMPLOYEE;<\/code> or SELECT LCASE(ENAME) FROM EMPLOYEE;<\/code><\/li>\n\n\n\n
        2. Q:<\/strong> Display the first three characters of each employee’s name. <\/strong>
          A:<\/strong> SELECT SUBSTRING(ENAME, 1, 3) FROM EMPLOYEE;<\/code> or SELECT LEFT(ENAME, 3) FROM EMPLOYEE;<\/code><\/li>\n\n\n\n
        3. Q:<\/strong> Display the length of each employee’s name. <\/strong>
          A:<\/strong> SELECT ENAME, LENGTH(ENAME) FROM EMPLOYEE;<\/code><\/li>\n\n\n\n
        4. Q:<\/strong> Display the salary of each employee rounded to the nearest thousand. <\/strong>
          A:<\/strong> SELECT ENAME, SAL, ROUND(SAL, -3) FROM EMPLOYEE;<\/code><\/li>\n\n\n\n
        5. Q:<\/strong> Display the remainder of dividing the salary by 1000 for each employee. <\/strong>
          A:<\/strong> SELECT ENAME, SAL, MOD(SAL, 1000) FROM EMPLOYEE;<\/code><\/li>\n\n\n\n
        6. Q:<\/strong> Display the current date and time. <\/strong>
          A: SELECT NOW();<\/code><\/li>\n\n\n\n
        7. Q:<\/strong> Display the year each employee was hired. <\/strong>
          A:<\/strong> SELECT ENAME, YEAR(HIREDATE) FROM EMPLOYEE;<\/code><\/li>\n\n\n\n
        8. Q:<\/strong> Display the name of the month each employee was hired. <\/strong>
          A:<\/strong> SELECT ENAME, MONTHNAME(HIREDATE) FROM EMPLOYEE;<\/code><\/li>\n\n\n\n
        9. Q:<\/strong> Display the number of years each employee has been with the company (assuming the current year is 2025). <\/strong>
          A:<\/strong> SELECT ENAME, 2025 - YEAR(HIREDATE) AS YearsOfService FROM EMPLOYEE;<\/code><\/li>\n<\/ol>\n\n\n\n
          \n\n\n\n

          Section 5: DDL and DML<\/span><\/strong><\/h3>\n\n\n\n
            \n
          1. Q:<\/strong> Write the SQL command to create the DEPARTMENT<\/code> table with DEPTNO<\/code> as the primary key. A:<\/strong>SQLCREATE TABLE DEPARTMENT ( DEPTNO INT PRIMARY KEY, DNAME VARCHAR(50), LOC VARCHAR(50) );<\/code><\/li>\n\n\n\n
          2. Q:<\/strong> Add a new column PINCODE<\/code> of type INT<\/code> to the DEPARTMENT<\/code> table. <\/strong>
            A:<\/strong> ALTER TABLE DEPARTMENT ADD PINCODE INT;<\/code><\/li>\n\n\n\n
          3. Q:<\/strong> Insert a new record for department 50, ‘HR’, located in ‘HOUSTON’ into the DEPARTMENT<\/code> table. <\/strong>
            A:<\/strong> INSERT INTO DEPARTMENT (DEPTNO, DNAME, LOC) VALUES (50, 'HR', 'HOUSTON');<\/code><\/li>\n\n\n\n
          4. Q:<\/strong> Update the location of the ‘SALES’ department to ‘ATLANTA’. <\/strong>
            A:<\/strong> UPDATE DEPARTMENT SET LOC = 'ATLANTA' WHERE DNAME = 'SALES';<\/code><\/li>\n\n\n\n
          5. Q:<\/strong> Delete the ‘OPERATIONS’ department from the table.<\/strong>
            A:<\/strong> DELETE FROM DEPARTMENT WHERE DNAME = 'OPERATIONS';<\/code><\/li>\n<\/ol>\n\n\n\n
            \n\n\n\n

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            Scenario-Based Questions For the following questions, consider this database schema with four tables: EMPLOYEE, DEPARTMENT, GRADE, and PROJECT. Table: EMPLOYEE EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO 7369 SMITH CLERK 7902 1980-12-17 800 NULL 20 7499 ALLEN SALESMAN 7698 1981-02-20 1600 300 30 7521 WARD SALESMAN 7698 1981-02-22 1250 500 30 7566 JONES MANAGER […]<\/p>\n","protected":false},"author":1,"featured_media":1462,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"googlesitekit_rrm_CAow44u0DA:productID":"","footnotes":""},"categories":[159,122],"tags":[14],"class_list":["post-1461","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-learn-mysql","category-mysql-worksheet","tag-mysql-commands"],"acf":[],"yoast_head":"\nTop 50+ MySQL Practice Questions and Answers for CBSE CS\/IP Board Exam - Itxperts - Itxperts<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/itxperts.co.in\/blog\/top-50-mysql-practice-questions-and-answers-for-cbse-cs-ip-board-exam-itxperts\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Top 50+ MySQL Practice Questions and Answers for CBSE CS\/IP Board Exam - Itxperts - Itxperts\" \/>\n<meta property=\"og:description\" content=\"Scenario-Based Questions For the following questions, consider this database schema with four tables: EMPLOYEE, DEPARTMENT, GRADE, and PROJECT. 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