Fundamentals of
SQL

Totally free education on the Internet

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About this Course

cap03.gif (979 bytes) This course is intended for serious computer hobbyists, IT students, and IT professionals.

The free online textbook for this course is Sams Teach Yourself SQL in 24 Hours, Third Edition. Read the Introduction.

offiste01.jpg (430 bytes) Indicates links that take you away from the Free-Ed.Net site. Use the links on these offsite pages carefully, and use the Back function on your browser to return to the assigments.

Join a Study Group

Learning experiences are always enhanced and enriched by interacting with others in the same "class." Now you can join a virtual classroom where you can share your experiences, answer questions, and find answers to your own questions.

Go to the SQL study group

 

Online Study Aids

Common SQL Commands
Glossary

Lesson 13. Joining Tables in Queries

In this lesson you will learn about:

  • An introduction to the table join
  • The different types of joins
  • How and when joins are used
  • Numerous practical examples of table joins
  • The effects of improperly joined tables
  • Renaming tables in a query using an alias

Reading Assignments

Read the following sections from your free online textbook:

offiste01.jpg (430 bytes) Selecting Data from Multiple Tables
offiste01.jpg (430 bytes) Types of Joins
offiste01.jpg (430 bytes) Join Considerations
 

Learning Activities

  1. Use this search box to refine and expand your understanding of new terms and concepts in the reading assignments.

Custom Search
  1. offiste01.jpg (430 bytes) Read the Summary of the lesson.
  2. offiste01.jpg (430 bytes) Test your understanding with the Q&A .
  3. offiste01.jpg (430 bytes) Visit the online Workshop.
    Return here after completing your Workshop session.

 


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Most recent revision: Thursday, March 20, 2014