Primary Key Constraint in MySql

We can create Primary Key constraint in MySql with the help of follwoing syntax:-

create table table_name
(
column_name data_type,
column_name data_type,
....
PRIMARY KEY (COLUMN_NAME)
);

Below is the example:-

CREATE TABLE EMPLOYEE
(
EMP_ID INT,
EMP_NAME VARCHAR(20),
EMP_ADR VARCHAR(20),
PRIMARY KEY(EMP_ID) 
);

Read also:- Constraint in Oracle