//Schema SQL (TO CREATE TABLE)
CREATE TABLE student(
student_id INT,
name VARCHAR(20) NOT NULL,
major VARCHAR(20) UNIQUE,
PRIMARY KEY(student_id)
);

//NOT NULL (OPTIONAL) VALUE CAN'T BE NULL
//UNIQUE (OPTIONAL) OTHER ROWS CAN'T HAVE SAME VALUE FOR THIS COL


//QUERY SQL (RUN QUERIES)

//Show table skeletonlayout;
DESCRIBE student;

//Show actual table
SELECT * FROM student;


//Add row
ALTER TABLE student ADD gpa DECIMAL(3,2);

//Remove row
ALTER TABLE student DROP COLUMN gpa;

//Remove table
DROP TABLE student;

//Insert data in table
INSERT INTO student VALUES(1,'Jack','Biology');

//How to leave out unknown data
INSERT INTO student(student_id,major) VALUES(1,'Jack');