教程-Oracle SQL : Mastering Oracle SQL Performance Tuning MP4|Video:h264,1280x720|Audio:AAC,44.1KHz,2Ch Genre:eLearning|Language:English+.VTT|Duration:5.5hours|  BecomeanOracleSQLQueryTuningGURUandsolvecriticalOracleSQLqueryperformanceissuesinproductionenvironment Whatyou'lllearn StepbyStepapproachontroubleshootingbadlyperformingSQLqueries. IdentifyhowinternalOraclecomponentsaffectstheperformanceoftheSQLquery. IdentifypotentialperformancebottlenecksbyreadingtheExplainplanofthequeries. TipsandTrickstomaketheOracleSQLqueryrunfaster. CompareBADvsGOODQuerieswithExamples. UnderstandhowSTATISTICSandCARDINALITYaffectstheperformanceoftheSQLQuery. ImplicationsofJOINSandACCESSMethodsontheperformanceoftheQuery. OraclePerformanceTuningonbothOracle11gandOracle12cEnvironment. Requirements BasicunderstandingofOracleSQLQuerywriting. Noprerequisitesoftwarerequired.YoushouldbeabletousePC/laptopcomfortably. Description ***ThisCoursepurchaseincludesvideolectures,practicefiles,quizzes,&assignments,1-on-1instructorsupport,LIFETIMEaccessanda100%MONEY-BACKGUARANTEE*** PleasenotethatthiscoursewillbecontinuouslygettingupdatedwithmorevideostokeepyouuptodateonOracleSQLTuning.YouwillfindlotofnewlecturecoveringnewfeaturesintheareaofOracleSQLTuning.Bestpartaboutthiscourseisthat,YoucanalsodemandalectureonaspecifictopicofSQLTuning,whichcomesunderthescopeandIwillmakesurethatthesectiononthatTopicisadded. ThiscourseisdesignedtotaketheOracleSQLDevelopers,Analysts,DBAtonextlevelinSQLQueryTuning.YouwillfindVariouswaystooptimizeandtunethequeriesintheProductionEnvironment.TheprofessionalwhowantstostartwiththetuningofOracleSQLqueriesandhavebasicideaofwritingandreadingqueries,willfinditextremelyeasytounderstand. Howmanytimeshaveweseenthis.AProductionbatchjoboraSQLQueryishungorconsumingmoretime.Majorityofthetimeswearecluelessonwhatneedstobedoneorhowithastobetroubleshooted. IwillGuideyouthroughaSTEPbySTEPapproachonhowtotroubleshootthebadlyperformingSQLQueries.WewillalsotalkabouttheOraclecomponentsthatneedtobecheckedandlookedat.ThiscoursewillalsoteachyouhowtointerpretvariouscomponentsandidentifytheactualreasonwhytheSQLQueryistakingtime.Wewillnotstopthere.WewillalsolookatwhatfixescouldbeappliedtomaketheSQLQueryworkfaster. Ihavetakenasystematicapproachinidentifying,analyzingandtroubleshootingbadlyperformingSQLQueryandwillprovideyouwiththeskillsrequiredtowritehighlyefficientOracleSQLqueries. ThereisaseparatesectiononmostcommonlyseenproblemsinSQLQueriesandhaveprovidedTIPSandTRICKSoncorrectingthoseSQLqueries.So,nexttime,youdoaCoderevieworwriteyourowncode,youcanfollowsomeofoftheBESTPracticesmentionedtoproactivelysolvetheSQLPerformanceIssues. Youshouldbeabletocompletethiscourseinaweektime,ifyoudedicate2hoursofyourtimedailyandthisjourneywilltakeyoufromOracleSQLTuningbeginnerstoexpertLevel. ImportantTopicscovered: GatherstatisticsforthebadSQL UnderstandtheCardinalityandExecutionPlan UnderstandtheVariouscomponentsoftheExecutionPlansandinterpretthem UnderstandtheIndexindepthanditsimpactonPerformance GuideOracleOptimizertochooseabetterexecutionPlan. TipsandTrickstotunetheSQLQueries. GainOracleperformancetuningknowledgeonOracle11gandOracle12c Briefly,TheknowledgeofSQLTuningisamustforITprofessionalsandthiscourseisonestopshopforgainingthisnecessaryandin-demandskill. Trustme,Iwillmakesureyouhaveanawesomelearningexperienceandwillholdyourhandandtakeyoustepbystep!!! HappyOracleSQLTuning