SQL Practical Questions with Answers | SQL Practice with Solutions

1. Create the following table, “students” and insert the data into the table.

roll_no	name	address	birth_date
1	Liza	Tinsukia	12-02-2002
2	Pritom	Dibrugarh	10-03-2000
3	Arjina	Tinsukia	11-02-2001
4	Monica	Jorhat	03-04-1995
5	Alija	Guwahati	01-01-1995
6	Amisha	Tinsukia	05-02-2011
7	Kishor	Jorhat	01-02-2002
8	Anuj	Tinsukia	02-01-1998
9	Barsha	Dibrugarh	06-03-1996
10	Pahi	Tinsukia	06-02-2012

Write SQL commands for the following on the basis of above table.

(i) Display all records of students from the above table.

(ii) Retrieve all the data of the students.

(iii) Display roll number and name of students.

(iv) Display the details of students who are from ‘Tinsukia’.

(v) List the name and birth date of students in Dibrugarh.

(vi) Delete all the records from the table where address has the value ‘Jorhat’.

(vii) Change the address of roll number 9 from Dibrugarh to Guwahati.

(viii) Change the value of birth date column to ‘5-3-2012’ where the name column has the value ‘Amisha’.

(ix) Change “Guwahati” to “Jorhat” in the address column in students table.

(x) Delete all the data from the students table.

Answer:

2. Write SQL commands for the following on the basis of given table STUDENT.

StudentNo	Class	Name	Game	Grade1	SUPW	Grade2
1	11	Rahul	Cricket	B	Photography	A
2	12	Rajesh	Tennis	A	Gardening	C
3	10	Bipul	Swimming	B	Photography	B
4	11	Priya	Tennis	C	Cooking	A
5	12	Aakash	Basketball	A	Literature	A
6	10	Pratima	Cricket	A	Gardening	C

(i) Display all the student’s records from the table.

(ii) Display the records of students who are studying in class 12.

(iii) Display the name of the students who plays game tennis.

(iv) Display the StudentNo and name of those students who does not play cricket.

(v) Display the name, grade1 and grade2 of the students who are getting grade ‘B’ in either Game or SUPW or both

(vi) Display the name, grade1 and grade2 of the students who are getting grade ‘A’ in both Game and SUPW.

(vii) Display the different games offered in the school.

(viii) Display the name and SUPW of the students whose name starts with ‘P’.

(ix) Display the StudentNo and name of those students who have got same grade in Grade1 and Grade2.

(x) Display all information of students in the alphabetic order of their name.

Answer:

3. Write SQL commands for the following on the basis of table SPORTS.

StudentNo	Class	Name	Game1	Grade1	Game2	Grade2
1	5	Rohit	Cricket	B	Swimming	A
2	6	Debojit	Tennis	A	Skating	C
3	5	Arman	Swimming	B	Football	B
4	8	Manisha	Tennis	C	Tennis	A
5	9	Dhiraj	Basketball	A	Cricket	A
6	10	Isha	Cricket	A	Athletics	C

(i) Display the name, grade1 and grade2 of those students who are getting grade ‘C’ in either Game1 or Game2 or both

(ii) Display the name, game1 and game2 of those students who have same game for both game1 and game2.

(iii) Display the name, grade1 and grade2 of the students who are getting grade ‘B’ in both Game1 and Game2.

(iv) Display the names and games (Game1, Game2) taken by the students whose name starts with ‘D’.

(v) Display the name and class of those students whose name ends with ‘a’. Or, display the name and class of students whose name contains ‘a’ as the last alphabet.

(vi) Display the name of the students having ‘h’ as the third character. Or, display the name of students whose name contains ‘h’ as the third alphabet

(vii) Display the name of the students whose name contains ‘D’ as first alphabet and ‘i’ as third alphabet.

(viii) Write an SQL query to list out the students whose name starts with ‘D’ and ends with ‘t’.

(ix) List out the students whose name length is 4 and starts with ‘I’.

(x) List the names of the students whose name has only 5 characters and starts with ‘A’ and ending with ‘n’.

(xi) Write an SQL query to find those students whose name ends with ‘a’ and six character long.

(xii) Display the names of the students whose name starts either with ‘M’ or with ‘D’.

(xiii) List the students whose names containing the letter ‘a’.

Answer:

4. Create the following table ‘Employee’ and insert the data into the table. Based on the table, solve the following queries.

empID ( Primary Key)	empName	Address	Age	Salary
101	Arpan	Tinsukia	20	20000
102	Rubi	Tinsukia	19	18000
103	Dipannita	Dibrugarh	20	22000
104	Vidya	Tinsukia	20	21000
105	Jirush	Dibrugarh	21	25000
106	Debojit	Tinsukia	25	24000
107	Dipsikha	Jorhat	28	25000
108	Ganesh	Tinsukia	26	35000
109	Lakhya	Dibrugarh	30	45000
110	Laxmi	Guwahati	20	15000

(i) Write the SELECT command to display the details of the employee with empid as 104.

(ii) Write the SELECT command to display all the records of those employees who are getting salary more than 30000.

(iii) Write the SELECT command to display the employee’s records who are getting salary less than 20000.

(iv) List out the employees who are earning salary between 35000 and 45000.

(v) Display the details of employees who are from Tinsukia or Dibrugarh.

(vi) Display the employee ID and name of employees using alias name “Employee ID”, “Employee Name”.

(vii) Display the details of employees who are not from Tinsukia or Dibrugarh.

(viii) List out the employees who are from Tinsukia and draw the salaries between more than 25000.

(ix) Write a SELECT command to display id, name and age of the employees with their age in ascending order.

(x) List out the employees id, name and salary in descending order based on salary column.

Answer:

5. Write SQL commands for the following on the basis of the given table EMPLOYEES.

EmpID (Primary Key)	EmpName	City	JoiningDate	Position	Salary
1	Bishal	Tinsukia	12/08/2020	Manager	50000
2	Chandan	Dibrugarh	10/08/2012	Sr. Eng.	65000
3	Aniket	Duliajan	15/05/2016	Jr. Eng.	55000
4	Utpal	Dibrugarh	25/07/2018	Clerk	30000
5	Kunal	Tinsukia	28/10/2019	Cashier	40000
6	Shruti	Jorhat	18/10/2023	Clerk	30000

(i) Display employee ID, employee name and joining date of employees .

(ii) Fetch details of employees with city column value as ‘Tinsukia’.

(iii) Change the value of salary column to 40000 where the position column has the value ‘clerk’.

(iv) Change the table name Employees to EmployeeDetails.

(v) Select all the records where the value of name starts with ‘A’.

(vi) Select all the records where the value of salary is in range 40000 and 60000.

(vii) Display the total salaries payable to employees.

(viii) Select highest salary from the table.

(ix) Add three columns to the table as i) TA  ii) DA   and iii) Total

(x) Set the value of TA as 15% of the salary, DA as 12% of the salary and total be sum of salary, TA and DA

Answer:

6. Write SQL commands for the following on the basis of table CLUB.

Coach_ID	CoachName	Age	Sports	Pay	Gender	DateOfApp
1	Ankit	25	Karate	15000	M	2020-03-27
2	Arjun	26	Karate	12000	M	2022-02-25
3	Bipon	25	Squash	17000	M	2020-02-25
4	Pratima	22	Basketball	16000	F	2022-03-22
5	Yash	24	Swimming	20000	M	2022-01-12
6	Rajiv	23	Swimming	20000	M	2023-01-11
7	Vinie	22	Squash	16000	F	2024-01-01
8	Neelam	23	Karate	16000	F	2024-03-01
9	Prachi	20	Swimming	15000	F	2023-03-03
10	Raja	25	Basketball	18000	M	2023-05-03

(i) Show all information about the swimming coaches in the club.

(ii) Display the different sports offered in the club.

(iii) List the name of all coaches with their date of appointment. Date of appointment is in descending order.

(iv) Display a report showing coach name, age, pay and bonus (15% of pay) of all the coaches.

(v) Display first 5 records of coaches from the table-CLUB.

(vi) Display first 5 records of Male coaches from the table-CLUB.

(vii) Display 3 records starting from 5^th records from the table-CLUB.

(viii) Display 5 records skipping the first 2 records.

(ix) Display details of coaches from records 4 to 7.

(x) Display the records of top 5 coaches who are getting highest payment.

(xi) Display the records of 5 coaches who are getting lowest payment.

(xii) Display the records coaches who are getting 2^nd highest payment.

(xiii) Display the records coaches who are getting 3^rd highest payment.

Answer:

7. Write SQL commands for the following on the basis of the table employee.

EmpID	Name	Salary
100	Arun Saha	50000
101	Rishiraj Bhattacharjee	40000
102	Subham Kr. Singh	30000
103	Manas Pratim Bhowmick	35000
104	Swapnil Biswas	18000
105	Himanjal Gogoi	22000
106	Rohit Kewat	20000
107	Sashank Kr. Singh	25000

(i) Write a query to get the total salaries payable to employees.

(ii) Write a query to find the name of the employee who earn the maximum salary. Return employee name and maximum salary.

(iii) Write a query to get the name of the employee who draws minimum salary. Display name of employee and minimum salary.

(iv) Write a query to get the average salary payable to employees and number of employees in the employee table.

(v) Write a query to get the highest, lowest, sum and average salary of all employees.

(vi) Write a query to get the number of employees working with the company.

(vii) Find how many employees getting salary more than or equal to 40000.

(viii) Display the difference between the highest and lowest salaries of employees.

(ix) Add four columns to the table Employee as TA, DA, HRA and Total.

(x) Set the value TA as 15% of the salary, DA as 10% of the salary, HRA as 20% of the salary and total be sum of salary, TA, DA and HRA.

Answer:

8. Create the following table EmpDetail and insert the data into the table.

EmpID	FName	LName	PhNo	HireDate	JobID	Salary	DeptID
1	Samuel	Dhan	9045798231	2020-06-10	IT-Prog	30000	101
2	Raja	Gogoi	7545798230	2022-06-10	WebDev	25000	102
3	Rajiv	Kumar	8345798232	2020-06-10	HRM	35000	103
4	Pratima	Sharma	9245798230	2020-06-10	WebDev	25000	102
5	Yash	Swami	7045798234	2023-06-10	IT-Prog	30000	101
6	Sulagna	Sarkar	8045798235	2021-06-10	Sales	18000	104

(i) Write a query to display the names (FName, LName) using alias name “First Name”, “Last Name”.

(ii) Write a query to get unique department id from the EmpDetail table.

(iii) Write a query to get all employee details, display first name in descending order.

(iv) Write a query to get the names (first name, last name), salary, PF of all the employees. (PF is calculated as 12% of salary)

(v) Write a query to get the employee id, names (FName, LName) and salary from the EmpDetail table, salary would be in ascending order.

(vi) Write a query to get the total salary payable to Web Devloper.

(vii) Write a query to get the number of employees working with the company who is working as ‘IT_Prog’.

(viii) Write a query to get the number of jobs available in the EmpDetail table.

(ix) Write a query to get all first name from EmpDetail table in Upper case.

(x) Write a query to get the first three characters of first name from EmpDetail table.

Answer:

9. Write SQL commands for the following on the basis of ‘marks’ table.

RollNo	Subject	Marks
1	English	90
2	English	60
3	English	80
1	Math	80
2	Math	80
3	Math	65
1	Science	70
2	Science	50
3	Science	85

(i) Display roll number and total marks of each student from marks table.

(ii) Display the average marks of each student.

(iii) Display roll number, subject and maximum marks of each student.

(iv) Display roll number subject and minimum marks of each student

(v) Display roll number and total marks of each student where total marks is less than 200.

(vi) Find the highest marks of each subject. Return subject and highest marks.

(vii) Display roll number and percentage of each student.

(viii) Display roll number and total marks of each student and sort it on the basis of total marks.

(ix) Display roll number and the number of subjects enrolled by each student.

(x) Display the subjects with maximum marks of each student where maximum marks is greater than 80.

Answer:

10. Create a table ‘employee’, insert data and write SQL commands for the following.

emp_id	dept_id	name	city	salary
1	104	Sajid	Guwahati	70000
2	104	Ashish	Dibrugarh	40000
3	101	Sweety	Tinsukia	50000
4	103	Arjun	Guwahati	55000
5	101	Dhiraj	Dibrugarh	75000
6	104	Bishal	Dibrugarh	60000
7	103	Rohit	Jorhat	55000
8	102	Shruti	Dibrugarh	50000
9	101	Ganesh	Tinsukia	55000
10	102	Nitul	Tinsukia	40000

(i) Display the dept_id, total, average, maximum and minimum salary for each department’s employees.

(ii) Display dept_id, maximum salary for each department with “dept_id” greater than 102.

(iii) Display the city and number of employees from each city.

(iv) Display the number of employees who are earning salary greater than 55000.

(v) Write a query to get the employee name and maximum salary who are from Tinsukia City.

Answer:

11. Create table EmpData and insert the data in the table.

emp_id	emp_name	working_date	working_hours
1	Kunal	2020-01-20	10
2	Arnav	2020-01-20	8
3	Rahul	2020-01-20	10
4	Binoy	2020-01-20	6
1	Kunal	2020-01-21	12
2	Arnav	2020-01-21	10
4	Binoy	2020-01-21	8
3	Rahul	2020-01-21	6
1	Kunal	2020-01-22	8
2	Arnav	2020-01-22	10

(i) Display employee id, sum and average working hours grouped on the employee id.

(ii) Display employee name, total working hours of each employee and sort it in the descending order of the sum of working hours.

(iii) Display employee name and total working hours of each employee, where total working hours is greater than 20.

(iv) Display only the name of employees whose maximum working hours is greater than or equal to 10.

(v) Write a SQL query to find the highest working hours of each employee. Return employee name and highest working hours.

Answer:

12. Create the following table ‘Customer’ and insert data into the table.

cust_id	cust_name	city	grade
1002	Dipannita Paul	Tinsukia	100
1007	Rishi Das	Tinsukia	200
1005	Priya Baruah	Sivasagar	300
1008	Amit Kumar	Dibrugarh	200
1004	Sajid Ahmed	Guwahati	400
1009	Priya Sharma	Dibrugarh	500
1003	Yashmin Ahmed	Jorhat	100
1001	Rubi Dutta	Tinsukia	200
1006	Minakshi Phukon	Sivasagar	300

(i) Display the customer’s name and city in uppercase letters.

(ii) Display the name of employees with name starting with the letter R.

(iii) Find the highest and lowest grade of the customers in each city. Display city, maximum grade and minimum grade.

(iv) Display only those cities whose maximum grade is greater than 300.

(v) Display the name of cities where city count is greater than or equal to 2.

Answer:

13. Create the table “orders” and add the records in the table.

ord_no	pur_amt	ord_date	cust_id
1001	1500	20/10/2020	103
1009	2500	10/09/2020	101
1002	6500	20/10/2020	102
1004	1100	17/08/2020	101
1007	9500	10/09/2020	103
1005	1500	27/07/2020	104
1008	2020	10/09/2020	102
1010	3000	10/10/2020	104
1003	1800	10/10/2020	101

(i) Display ord_no and ord_date with column heading, “Order Number” and “Order Date”.

(ii) Find the number of orders given by each customer. Display customer id and number of orders.

(iii) Display customer id and the highest purchase amount ordered by each customer.

(iv) Show the customer id and total purchase amount of each customer. Total purchase amount should be in ascending order.

(v) Display order date, sum and average purchase amount grouped on the order date.

Answer:

14. Answer the following:

(i) Create a table “EMP” with the following columns:

EMP_NO, EMP_NAME, JOIN_DATE, JOIN_BASIC

(ii) Insert the data:

EMP_NO	EMP_NAME	JOIN_DATE	JOIN_BASIC
1001	Rishi Das	01-JUN-2022	30000
1002	Bibek Das	01-JUN-2022	25000
1003	Kunal Karmakar	01-JUN-2022	30000
1004	Arnav Dutta	01-JUL-2022	25000
1005	Roktim Gogoi	01-JUL-2022	28000

(iii) Display employee number and employee name from the above table with column heading “Employee Number” and “Employee Name”.

(iv) Display the name of employees with names starting with the letter, R.

(v) To the table EMP, add a new column, DESIG varchar (3).

(vi) Update the table and add data to DESIG column.

EMP_NO	DESIG
1001	EXE
1002	DIR
1003	DIR
1004	MGR
1005	MGR

(vii) Display the different designation of EMP table.

(viii) Retrieve the records of employees whose designation is not DIR or MGR.

(ix) List out the employees whose designation is “MGR” and getting join basic more than 25000.

(x) List out the designation wise maximum join basic of the employees. Return employee name, designation and maximum join basic.

Answer:

15. Answer the following-

(i) Create a table “Salary” with the following columns:

EMP_NO, BASIC_SALARY, COMMISSION, DEDUCTION, SALARY_DATE

(ii) Insert the following data into the “Salary” table.

EMP_NO	BASIC_SALARY	COMMISSION	DEDUCTION	SALARY_DATE
1001	30000	2000	2500	30-JUN-2024
1002	25000	1200	2000	30-JUN-2024
1003	30000	5000	2900	30-JUN-2024
1004	25000	2000	3000	30-JUN-2024
1005	28000	1000	2500	30-JUN-2024
1001	30000	2000	2500	31-JUL-2024
1002	25000	1200	2000	31-JUL-2024
1003	30000	5000	2900	31-JUL-2024
1004	25000	2000	3000	31-JUL-2024
1005	28000	1000	2500	31-JUL-2024

(iii) Display emp_no, basic salary, commission, deduction and net salary, sort net salary in descending order.

NET SALARY=BASIC_SALARY+COMMISSION-DEDUCTION

(iv) Display the basic salary and HRA, HRA is calculated as 10% of basic salary.

(v) Display the emp_no, basic salary and commission of employees whose basic salary + commission is greater than 30000.

(vi) Display total basic salary of each employe and sort it in the descending order of total of basic salary.

(vii) Display the employee number of those employees whose average basic is greater than 20000.

(viii) To the table Salary, add a new column, DEPARTMENT.

(viii) Update the table with department set to SLS, ACC, MKT

EMP_NO	DEPARTMENT
1001	ACC
1002	SLS
1003	SLS
1004	MKT
1005	MKT

Answer: