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 12. Understanding Dates and Times

In this lesson you will learn about:

  • Understanding dates and time
  • How date and time are stored
  • Typical date and time formats
  • How to use date functions
  • How to use date conversions

Note

As you know by now, there are many different SQL implementations. This book shows the ANSI standard and the most common nonstandard functions, commands, and operators. Oracle is used for the examples. Even in Oracle, the date can be stored in different formats. You must check your particular implementation for the date storage. No matter how it is stored, your implementation should have functions that convert date formats.

-- From the introduction to Hour 12 of your textbook

Reading Assignments

Read the following sections from your free online textbook:

offiste01.jpg (430 bytes) How Is a Date Stored?
offiste01.jpg (430 bytes) Date Functions
offiste01.jpg (430 bytes) Date Conversions
 

Learning Activities

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

Google
  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: Tuesday, August 07, 2007