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Welcome to the World of SQL

Oct 4, 2002

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This chapter is from the book 

Sams Teach Yourself SQL in 24 Hours, 3rd Edition

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Workshop

The following workshop is composed of a series of quiz questions and practical exercises. The quiz questions are designed to test your overall understanding of the current material. The practical exercises are intended to afford you the opportunity to apply the concepts discussed during the current hour, as well as build upon the knowledge acquired in previous hours of study. Please take time to complete the quiz questions and exercises before continuing. Refer to Appendix C, "Answers to Quizzes and Exercises," for answers.

Quiz

What does the acronym SQL stand for?
What are the six main categories of SQL commands?
What are the four transactional control commands?
What is the main difference between client/server and Web technologies as they related to database access?
If a field is defined as NULL, does that mean that something has to be entered into that field?

Exercises

Identify the categories in which the following SQL commands fall:

create table
delete
select
insert
alter table
update

Study the following tables and pick out the column that would be a good candidate for the primary key:

`EMPLOYEE_TBL`	`INVENTORY_TBL`	`EQUIPMENT_TBL`
`name`	`item`	`model`
`phone`	`description`	`year`
`start date`	`quantity`	`serial number`
`address`	`item number`	`equipment number`
`employee number`	`location`	`assigned to`

Refer to Appendix B, "Using MySQL for Exercises." Download and install MySQL on your computer to prepare for hands-on exercises in the following hours of instruction.

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