What Is NOT NULL Constraint In SQL?

The table column in database can store NULL values by default. SQL NOT NULL constraint prevents insertion NULL value in a table column. Example: MySQL CREATE TABLE country ( country_id BIGINT(11), country_name VARCHAR(200) NOT NULL, country_location VARCHAR(200) NOT NULL, country_zipcode INT(60) );

Posted in: Sql
Have a natural attraction for women cosmetics and replica watches uk clothes, no
more than two for men the most attractive one, is to make their own driving experience, happy and can serve as the facade of the car, another is to highlight the taste edify sentiment rolex replica watch. The replica rolex is undoubtedly the most fashionable accessories, wear a suit to attend the activities, but also get a decent match on the replica watches .