Program2, Sql Server

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CREATE TABLE student
(
    id INTEGER,
    first_name VARCHAR(20),
    last_name VARCHAR(20),
    age INTEGER,
    city VARCHAR(20),
    fees INTEGER
);

INSERT INTO student(id, first_name, last_name, age, city, fees) VALUES(1, 'Vikas', 'Kumar', 18, 'Delhi', 2000);
INSERT INTO student(id, first_name, last_name, age, city, fees) VALUES(2, 'Neha', 'Jain', 14, 'Alwar', 4500);
INSERT INTO student(id, first_name, last_name, age, city, fees) VALUES(3, 'Girish', 'Sharma', 15, 'Delhi', 3000);

SELECT *
FROM STUDENT;

SELECT COUNT(DISTINCT city) AS no_of_city
FROM student;

SELECT first_name
FROM student 
WHERE fees > (SELECT AVG(fees) FROM student);

SELECT *
FROM student
WHERE fees > (SELECT MIN(fees) FROM student) OR fees < (SELECT Max(fees) FROM student);

SELECT AVG(age) AS avg_age
FROM student;

SELECT id, first_name, age
FROM student
WHERE age NOT BETWEEN 0 AND (SELECT AVG(age) FROM student);

SELECT id, first_name, age
FROM student
WHERE age BETWEEN (SELECT AVG(age) FROM student) AND (SELECT MAX(age) FROM student);

SELECT *
FROM student 
WHERE age = (SELECT MAX(age) FROM student) AND  fees = (SELECT MIN(fees) FROM student);

View schema
Execution time: 0,03 sec, rows selected: 13, rows affected: 3, absolute service time: 0,19 sec