Learn SQL - Part II

了解SQL第二部分 - 教程初學者SQL

+ Get more of what you want with SQL :

+ Unfortunate consequences

+ Another problem, Outerjoin motivation

+ Outerjoin flavors and definitions

+ Outerjoin examples, Outerjoin syntax

+ SQL features covered so far

+ INSERT, DELETE, UPDATE

+ Key declaration, Referential integrity example

+ Referential integrity in SQL

+ Enforcing referential integrity

+ and many more...

This App! Very easy to read and follow step-by-step for everyone!! - Enjoy it

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