Sams Teach Yourself SQL in 24 Hours, Third Edition By Ronald R. Plew, Ryan K. Stephens
Table of Contents
Hour 24. Extensions to Standard SQL
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
1:
Is SQL a procedural or non-procedural language?
2:
What are some of the reasons differences in SQL exist?
3:
What are the three basic operations of a cursor, outside of declaring the cursor?
4:
Procedural or non-procedural: With which does the database engine decide how to evaluate and execute SQL statements?
Exercises
Q1:
Try some research about the SQL variations among the various vendors . Go to the following Web sites and review the implementations of SQL that are available:
