Constraints (NOT NULL, UNIQUE, DEFAULT, PRIMARY KEY, CHECK) in SQL with examples | SQL Tutorial
• NOT NULL - Ensures that a column cannot have a NULL value
• UNIQUE - Ensures that all values in a column are different
PRIMARY KEY - A combination of a NOT NULL and UNIQUE. Uniquely identifies each row in a table
• CHECK - Ensures that all values in a column satisfies a specific condition
DEFAULT - Sets a default value for a column when no value is specified
Please like and subscribe us.
On this page of the site you can watch the video online Constraints (NOT NULL, UNIQUE, DEFAULT, PRIMARY KEY, CHECK) in SQL with examples | SQL Tutorial with a duration of hours minute second in good quality, which was uploaded by the user Let's Learn Pro 08 January 2020, share the link with friends and acquaintances, this video has already been watched 126 times on youtube and it was liked by 4 viewers. Enjoy your viewing!
