In Review
The Bonus Week should have been an interesting resolution to your journey through SQL. The first three weeks focus on the ANSI SQL standard, whereas this week mainly introduces extensions to standard SQL. This week also covers material that will help you apply what you have learned about SQL to different environments and different situations.
Bonus Day 1 shows numerous common errors that you might encounter when using SQL to communicate with your relational database.
Bonus Day 2 offers several real-world examples of complex SQL queries. It includes guidelines for constructing complex queries; these guidelines should provide you with an understanding of what you might face on the job as a SQL programmer.
Bonus Day 3 covers Oracle SQL*Plus, ...
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