mysql - Can I define Data Domain for an attribute in a table in MySql

Question

How can I define data domain for an attribute in mysql table. For example I want 'male' or 'female' values in gender attribute of student table not any other than these. Is it possible in mysql?

Answer 1

Yes it is possible, use ENUM data-type.

An ENUM is a string object with a value chosen from a list of permitted values that are enumerated explicitly in the column specification at table creation time.

e.g.

CREATE TABLE shirts (
    name VARCHAR(40),
    size ENUM('x-small', 'small', 'medium', 'large', 'x-large')
);

For more information look here.