Written by a Senior Database Administrator who has worked with the Oracle RDBMS for thirty years, this is a book which teaches the skill of SQL Tuning for the Oracle Database. Not a list of one-off tricks or tips, nor a glossing over of topics; this book offers an in-depth process covering discovery, analysis, and problem resolution. Learn the science behind SQL Tuning. Learn and apply the FILTERED ROWS PERCENTAGE Cardinality based method of tuning Determine a query's Driving Table and Join Order Construct Query Diagrams, Data Models, and Join Trees Build and use Count / Filter / and Reconstruction Queries Identify Waste in a Query Execution Plan Zero in on Cardinality Divergence using Estimated vs. Actuals Use the ACCESS / FILTER / COVERAGE strategy to build indexes for Problem Queries Exploit THE 2% RULE in analyzing Access method and Join method Classify queries as Precision Style or Warehouse Style Understand Hash Join mechanics and make Hash Joins go faster Make HINTS work as Detection Tools rather than clubs Avoid early Database Design flaws Manage Statistics and deal with common Statistics problems (NDV, Uniform Distribution, Independence, Dynamic Sampling) (Staleness, Skew, Dependence, Defaulting, Out-Of-Bounds, Transiency, Bloat) Perfect your Question Based Analyis Technique and more Included are: a special chapter for EXADATA, a LAB which demonstrates the cardinality based process of SQL Tuning, and twenty three magical SQL scripts that make the process of SQL Tuning easy to do. Learn the skill of SQL Tuning as taught by an expert who does it for a living, and become the go-to specialist in your company. Chapter 1: DRIVING TABLE and JOIN ORDER Chapter 2: Ways to Use a Query Execution Plan Chapter 3: The Best Indexes for a Query Chapter 4: JOINS Chapter 5: HINTS Chapter 6: BASICS Chapter 7: ROW COUNTS and RUN TIMES Chapter 8: EXADATA LAB: Reverse Engineering the QEP Appendix: Know Your Scripts Scripts for analyzing queries and plans Scripts for examining an active database Scripts for looking at metadata showplan showplanshort showplanconstraints showplancountqueries showplandatamodel showplandrivingtable showplanfilterqueries showplanfrpspreadsheetcode showplanindexes showplannumrows showplanquerydiagram showplantables showplantablesunique loadplanfromcache loadplanfromhist showtopcpu showowner showindexes showconstraints showcolstats showhistograms showallscanrates showallworkareas It's all about the Cardinalities
10.1.1 Individual Differences Boyce et al. [39, p. 202] state, “the purpose of measuring user characteristics separately from the search process is to be able to use them to predict performance or to explain differences in performance.
... Midway Continuing Education ; Curt Griffin , Okefenokee Technical Institute ; Sandra Hagman , Forsythe Community College ; Edward Harms , Interactive Business Systems , Inc .; Carolyn Harris , Black Hawk College ; Billie J. Herrin ...
If you have purchased an e-book Site License, you may duplicate and use only within the school and/or district for which you purchased the License. Editor Sara Connolly Managing Editor Elizabeth Morris, Ph.D. Editor-in-Chief Sharon.
A market leader for over 20 years, the collection helps students achieve high-level learning outcomes by engaging them in the way they learn best - through hands-on practice.
Business-oriented problems and cases are included and make the texts ideal for use in courses taught out of Schools of Business.
Database Management Using DBase IV and SQL
Database Management Using DBASE IV and SQL
Robert T. Grauer, Maryann M. Barber. r DATABASE MANAGEMENT THROUGH dBASE Robert T. Grauer Maryann M. Barber.
This book offers full, comprehensive coverage of Microsoft Access. Beyond point-and-click The goal of the Exploring series is to move students beyond the point-and-click, to understanding the why and how behind each skill.
This book will show you a variety of ways to use Gmail with your own domain in a variety of scenarios, from one address on one domain to multiple addresses on multiple domains, so that you can log into Gmail's interface and send and receive ...