-- create a table
CREATE TABLE students (
  s_id INTEGER PRIMARY KEY,
  s_bame varchar(10) unique,
  DOB date NOT NULL,
  catagery char(5) default "A"
);
-- insert some values
INSERT INTO students VALUES (101, 'Ajay', '1990-02-04', 'D');
-- fetch some values
-- SELECT * FROM students WHERE gender = 'F';