-- This Test Yourself Practice Exams includes: -- Full coverage of both SQL Server 7 Database Administration and SQL Server 7 Database Design official exam objectives (exam 70-28 & 70-29).-- More than 800 sample exam questions with in-depth answers.-- Exam Watch warnings point out troublesome exam questions and issues and shows readers how to be prepared.-- Special "How to Take an MCDBA Exam" section.-- New and Expanded Test Yourself format. Within each topical chapter, questions and answer sets will now be identified by official exam objective, and a Quick-Review instructional text will be included for each section so candidates can review AND practice.-- Improved Answers. These books are taking a new approach to the questions and answers. While still offering as much detailed information for the correct answer, the answers are now expanded to show why the incorrect choices are wrong. This not only shows how to do things, but also how not do things and why.
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Test yourself--don't let the real test be your first test! More questions - more content: the best self-testing program available. Based on Microsoft's MCDBA SQL Server 7 Database Design and Database Administration exams. Covers all Microsoft-defined exam objectives for Exams 70-028 and 70-029. Comprehensive coverage features more than 700 practice exam questions-grouped by official exam objective; answers provide in-depth explanations - and show why the incorrect choices are wrong, as shown below: You have found that performance is degrading on a stored procedure that builds product summaries from your order detail records. You have run the SQL Server Query Analyzer and noticed that a composite index is no longer being used. Warnings about out of date or missing statistics are not appearing on the graphical execution plan. What should you do to give the query optimizer better information about the composite index? A: Run the Index Tuning Wizard. B: Run CREATE STATISTICS for all columns in the composite index. C: Run UPDATE STATISTICS. D: Drop the index and re-create it. Correct: B: Statistics are automatically created for only the first column of a composite index. The query optimizer may be seeing that the cost of using the composite index may be too high given the distribution of values in the first column. Adding statistics for the other columns in the composite index will allow the query optimizer to more accurately determine whether the index should be used to process the query. Incorrect: A: is incorrect because the Index Tuning Wizard will not create new statistics. C is incorrect because statistics are up-to-date. Running UPDATE STATISTICS is unlikely to change the query optimizer's strategy based on the distribution of data in the first column of the composite index. D is wrong because re-creating the index will just update the statistics for the first column.About the Author:
Syngress Media, Inc. (Norwell, MA) is an independent company committed to creating the very best book, software and Internet based exam preparation tools. They have published over 20 certification study guides and over a dozen Personal Testing Centers. All of these products are created by leading content experts, many of whom are also full-time trainers.
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Book Description Osborne Publishing, 1999. Paperback. Book Condition: Used: Good. Bookseller Inventory # SONG0072121815
Book Description Osborne Publishing, 1999. Book Condition: Good. Brian Wells; Beth Young (illustrator). A+ Customer service! Satisfaction Guaranteed! Book is in Used-Good condition. Pages and cover are clean and intact. Used items may not include supplementary materials such as CDs or access codes. May show signs of minor shelf wear and contain limited notes and highlighting. Bookseller Inventory # 0072121815-2-4
Book Description McGraw-Hill Professional Publishing. Paperback. Book Condition: Good. Light shelf wear and minimal interior marks. Bookseller Inventory # G0072121815I3N00
Book Description Osbourne/McGraw-Hill, 2000. Paperback. Book Condition: VERY GOOD. 2000. Osbourne/McGraw-Hill. American. Softback. Book - VG, minor wear to extremities. 9x7.5. 604pp. Some b/w illus. Bookseller Inventory # 534919