Paperback. 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 tuningDetermine a query's Driving Table and Join OrderConstruct Query Diagrams, Data Models, and Join TreesBuild and use Count / Filter / and Reconstruction QueriesIdentify Waste in a Query Execution PlanZero in on Cardinality Divergence using Estimated vs. ActualsUse the ACCESS / FILTER / COVERAGE strategy to build indexes for Problem QueriesExploit THE 2% RULE in analyzing Access method and Join methodClassify queries as Precision Style or Warehouse StyleUnderstand Hash Join mechanics and make Hash Joins go fasterMake HINTS work as Detection Tools rather than clubsAvoid early Database Design flawsManage 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 Techniqueand 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 ORDERChapter 2: Ways to Use a Query Execution PlanChapter 3: The Best Indexes for a QueryChapter 4: JOINSChapter 5: HINTSChapter 6: BASICSChapter 7: ROW COUNTS and RUN TIMESChapter 8: EXADATALAB: Reverse Engineering the QEPAppendix: Know Your ScriptsScripts for analyzing queries and plansScripts for examining an active databaseScripts for looking at metadata showplanshowplanshortshowplanconstraintsshowplancountqueriesshowplandatamodelshowplandrivingtableshowplanfilterqueriesshowplanfrpspreadsheetcodeshowplanindexesshowplannumrowsshowplanquerydiagramshowplantablesshowplantablesuniqueloadplanfromcacheloadplanfromhistshowtopcpushowownershowindexesshowconstraintsshowcolstatsshowhistogramsshowallscanratesshowallworkareas It's all about the Cardinalities Shipping may be from our UK warehouse or from our Australian or US warehouses, depending on stock availability.

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Titel: Oracle SQL Performance Tuning and Optimization (Paperback)
Verlag: Createspace Independent Publishing Platform
Ver�ffentlichungsdatum: 2014
Sprache: Englisch
ISBN-10: 1501022695
ISBN-13: 9781501022692
Bindung: Paperback
Zustand: new

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Inhaltsangabe

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

Rese�a del editor

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

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

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