<!-- CREATE A TABLE WITH PRIMARY KEY -->
CREATE TABLE Student(ID INT, Name varChar(255),Age INT, `Blood Group` varChar(255),Department_name varChar(255),Mobile_number varChar(255), CONSTRAINT student_id primary key(ID));

<!-- CREATE A TABLE WITHOUT PRIMARY KEY -->
CREATE TABLE Grades(student_id INT, GPA INT, Semester varChar(255));

<!-- Insert a student values in student table -->
INSERT INTO student VALUES(1,"Tamim",23,"A+ve","CSE","014265561614");

<!-- INSERT GRADES OF STUDENT IN GRADE TABLE -->
INSERT INTO grades VALUES(1,3.75,"SUMMER");

<!-- SHOWING DATA AFTER INSERTING VALUES IN STUDENT TABLE -->
SELECT * FROM `student` WHERE 1;

<!-- SHOWING DATA AFTER INSERTING VALUES IN GRADE TABLE -->
SELECT * FROM `grades` WHERE 1;

<!-- UPDATE MOBILE NUMBER OF TAMIM IN STUDENT TABLE  -->
UPDATE student SET Mobile_number = "01912345678" WHERE Name = "Tamim";

<!-- ADD A DATA IN GRADES TABLE -->
INSERT INTO grades VALUES(5,2.45,"SUMMER");