Hour 2
Exploring the Components of the SQL Language
What You’ll Learn in This Hour:
▶ An introduction to and brief history of SQL
▶ An overview of the SQL standard
▶ An introduction to some vendor implementations of SQL
▶ The basic components, or sublanguages, that comprise the SQL language
SQL has many components that are simple yet offer flexibility and power for any user communicating with a relational database. This hour provides a broad overview of SQL, to cover some preliminary concepts that you need to know before you jump into hands-on exercises and coding. Be patient with this hour; the “boring” background material helps you build a solid starting foundation.
SQL Definition and History
Every modern business uses and stores ...
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