The Sequel to SQLMP4 | Video: AVC 1280x720 | Audio: AAC 44KHz 2ch | Duration:...
Learn the most important parts of the SQL language so you can create tables with constraints, use relationships, and write powerful join queries.
Learn how to use SQL aggregate functions, including COUNT, SUM, and AVG, to do calculations on groups of data.
Add constraints — like NOT NULL, UNIQUE, FOREIGN KEY, and...
