October 2002
Beginner
864 pages
18h 41m
English
Content preview from Sams Teach Yourself SQL in 21 Days, Fourth Edition
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Workshop
The Workshop provides quiz questions to help solidify your understanding of the material covered, as well as exercises to provide you with experience in using what you have learned. Try to answer the quiz and exercise questions before checking the answers in Appendix A, “Answers.”
Quiz
| 1: | Is there a limit to the number of columns in a table that can be defined as unique? |
| 2: | What does a check constraint do? |
| 3: | When inserting data into the database, which record must be inserted first, the parent or the child? |
| 4: | When deleting data from the database, which record must be deleted first, the parent or the child? |
Exercises
| 1: | You created the CUST, STOCK, and MEDIA tables today. Perform the DESCRIBE command on each of these tables. Next, determine ... |
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.