Joinsql
mysql下载 时间:2021-03-01 阅读:()
SQLServerSQLClassOutlineTheBasicsofSQLIntroductionSettingYourDefaultDatabaseSELECT*(AllColumns)inaTableFullyQualifyingaDatabase,SchemaandTableSELECTSpecificColumnsinaTableCommasintheFrontorBackPlaceyourCommasinfrontforbetterDebuggingCapabilitiesSorttheDatawiththeORDERBYKeywordORDERBYDefaultstoAscendingUsetheNameortheNumberinyourORDERBYStatementTwoExamplesofORDERBYusingDifferentTechniquesChangingtheORDERBYtoDescendingOrderNULLValuessortFirstinAscendingMode(Default)NULLValuessortLastinDescendingMode(DESC)MajorSortvs.
MinorSortsMultipleSortKeysusingNamesvs.
NumbersSortsareAlphabetical,NOTLogicalUsingACASEStatementtoSortLogicallyAnOrderbyThatUsesanExpressionHowtoALIASaColumnNameAliasingaColumnNamewithSpacesorReservedWordsAMissingCommacanbyMistakebecomeanAliasCommentsusingDoubleDashesareSingleLineCommentsCommentsforMulti-LinesCommentsforMulti-LinesasDoubleDashesperLineAGreatTechniqueforCommentstoLookforSQLErrorssp_helpattheDatabaseLevelsp_helpattheObjectLevelGettingSystemInformationGettingAdditionalSystemInformationTheWHEREClauseTheWHEREClauselimitsReturningRowsDoubleQuotedAliasesareforReservedWordsandSpacesUsingAColumnALIASInAWHEREClauseUsingAColumnALIASInAnORDERBYClauseInWhatOrderDoesSQLServerProcessAQueryCharacterDataneedsSingleQuotesintheWHEREClauseCharacterDataneedsSingleQuotes,butNumbersDon'tDeclaringaVariableComparisonsagainstaNullValueNULLmeansUNKNOWNDATAsoEqual(=)won'tWorkUseISNULLorISNOTNULLwhendealingwithNULLsNULLisUNKNOWNDATAsoNOTEqualwon'tWorkUseISNULLorISNOTNULLwhendealingwithNULLsUsingGreaterThanorEqualTo(>=)ANDintheWHEREClauseTroubleshootingANDORintheWHEREClauseTroubleshootingOrTroubleshootingCharacterDataUsingDifferentColumnsinanANDStatementQuiz–HowmanyrowswillreturnAnswertoQuiz–HowmanyrowswillreturnWhatistheOrderofPrecedenceUsingParenthesestochangetheOrderofPrecedenceUsinganINListinplaceofORTheINListisanExcellentTechniqueINListvs.
ORbringsthesameResultsTheINListCanUseCharacterDataUsingaNOTINListNullValuesinaNOTINListBringBackNoRowsATechniqueforHandlingNullswithaNOTINListBETWEENisInclusiveNOTBETWEENisAlsoInclusiveLIKEcommandUnderscoreisWildcardforoneCharacterLIKEcommandusingaRangeofValuesLIKEcommandusingaNOTRangeofValuesLIKECommandWorksDifferentlyonCharVsVarcharTroubleshootingLIKECommandonCharacterDataIntroducingtheRTRIMCommandQuiz–WhatDataisLeftJustifiedandwhatisRightNumbersareRightJustifiedandCharacterDataisLeftAnswer–WhatDataisLeftJustifiedandwhatisRightAnExampleofDatawithLeftandRightJustificationAVisualofCHARACTERDatavs.
VARCHARDataRTRIMcommandRemovesTrailingspacesonCHARDataUsingLikewithanANDClausetoFindMultipleLettersUsingLikewithanORClausetoFindEitherLettersDeclaringaVariableandusingitwiththeLIKECommandEscapeCharacterintheLIKECommandchangesWildcardsEscapeCharactersTurnoffWildcardsintheLIKECommandQuiz–TurnoffthatWildcardANSWER–ToFindthatWildcardDistinct,GroupByandTOPTheDistinctCommandDistinctvs.
GROUPBYQuiz–HowmanyrowscomebackfromtheDistinctAnswer–HowmanyrowscomebackfromtheDistinctTOPCommandTOPCommandisbrilliantwhenORDERBYisused!
TOPCommandwithPERCENTTOPCommandwithPERCENTTheTOPCommandWITHTIESTheTOPCommandUsingaVariableTheTOP1CommandforaRandomSampleAggregationQuiz–YoucalculatetheAnswerSetinyourownMindAnswer–YoucalculatetheAnswerSetinyourownMindThe3RulesofAggregationThereareFiveAggregatesQuiz–HowmanyrowscomebackAnswer–HowmanyrowscomebackTroubleshootingAggregatesGROUPBYwhenAggregatesandNormalColumnsMixGROUPBYdeliversonerowperGroupCount_BigLimitingRowsandImprovingPerformancewithWHEREWHEREClauseinAggregationlimitsunneededCalculationsKeywordHAVINGtestsAggregatesaftertheyaretotaledCHECKSUM_AGGtoCheckIfaTableHasChangedUsingDistinctWithintheAggregateGroupbyGroupingSetsGroupbyRollupAnswerSetforGroupbyRollupQueryCreatingaCubeAnswerSetforCubeQueryAnEasyExampleofCreatingaCubeQuiz-GROUPBYGROUPINGSETSChallengeAnswerToQuiz-GROUPBYGROUPINGSETSChallengeGettingtheAverageValuesperColumnAverageValuesperColumnforallColumnsinaTableJoinFunctionsATwo-TableJoinUsingTraditionalSyntaxAtwo-tablejoinusingNon-ANSISyntaxwithTableAliasYouCanFullyQualifyAllColumnsAtwo-tablejoinusingANSISyntaxBothQuerieshavethesameResultsandPerformanceQuiz–CanYouFinishtheJoinSyntaxAnswertoQuiz–CanYouFinishtheJoinSyntaxQuiz–CanYouFindtheErrorAnswertoQuiz–CanYouFindtheErrorSuperQuiz–CanYouFindtheDifficultErrorAnswertoSuperQuiz–CanYouFindtheDifficultErrorQuiz–Whichrowsfrombothtableswon'treturnAnswertoQuiz–WhichrowsfrombothtablesWon'tReturnLEFTOUTERJOINLEFTOUTERJOINResultsRIGHTOUTERJOINRIGHTOUTERJOINExampleandResultsFULLOUTERJOINFULLOUTERJOINResultsWhichTablesaretheLeftandwhichTablesareRightAnswer-WhichTablesaretheLeftandwhicharetheRightINNERJOINwithAdditionalANDClauseANSIINNERJOINwithAdditionalANDClauseANSIINNERJOINwithAdditionalWHEREClauseOUTERJOINwithAdditionalWHEREClauseOUTERJOINwithAdditionalANDClauseOUTERJOINwithAdditionalANDClauseResultsQuiz–WhyisthisconsideredanINNERJOINEvaluationOrderforOuterQueriesTheDREADEDProductJoinTheDREADEDProductJoinResultsTheHorrifyingCartesianproductJoinTheANSICartesianJoinwillERRORQuiz–DotheseJoinsReturntheSameAnswerSetAnswer–DotheseJoinsReturntheSameAnswerSetTheCROSSJOINTheCROSSJOINAnswerSetTheSelfJoinTheSelfJoinwithANSISyntaxQuiz–WillbothqueriesbringbackthesameAnswerSetAnswer–WillbothqueriesbringbackthesameAnswerSetQuiz–WillbothqueriesbringbackthesameAnswerSetAnswer–WillbothqueriesbringbackthesameAnswerSetHowwouldyoujointhesetwotablesAnAssociativeTableisaBridgethatJoinsTwoTablesQuiz–Canyouwritethe3-TableJoinAnswertoquiz–Canyouwritethe3-TableJoinQuiz–Canyouwritethe3-TableJointoANSISyntaxAnswer–Canyouwritethe3-TableJointoANSISyntaxQuiz–CanyouPlacetheONClausesattheEndAnswer–CanyouPlacetheONClausesattheEndThe5-TableJoin–LogicalInsuranceModelQuiz-WriteaFiveTableJoinUsingANSISyntaxAnswer-WriteaFiveTableJoinUsingANSISyntaxQuiz-WriteaFiveTableJoinUsingNon-ANSISyntaxAnswer-WriteaFiveTableJoinUsingNon-ANSISyntaxQuiz–Re-WritethisputtingtheONclausesattheENDAnswer–Re-WritethisputtingtheONclausesattheENDDateFunctionsCurrent_TimestampGetdateDateandTimeKeywordsSYSDATETIMEOFFSETProvidestheTimezoneOffsetSYSDATETIMEOFFSETProvidestheTimezoneOffsetUsingbothCASTandCONVERTinLiteralValuesUsingBothCASTandCONVERTinLiteralValuesUsingbothCASTandCONVERTinLiteralValuesTheDATEADDFunctionTheDATEDIFFFunctionDATEADDFunctionARealWorldExampleforDateAddUsingtheOrderTableDATEPARTFunctionDATEPARTFunctionExamplesYEAR,MONTH,andDAYFunctionsABetterTechniqueforYEAR,MONTH,andDAYFunctionsDATENAMEFunctionDateFormattingTimeFormattingISDATEFunctionTemporaryTablesTherearethreetypesofTemporaryTablesinTEMPDBTablesinTEMPDBarenotyouronlyTemporaryStorageWhatisTEMPDBCreatingaPrivateTemporaryTableYouPopulateaPrivateTemporaryTablewithanINSERT/SELECTTheThreeStepstoUseaPrivateTemporaryTableCreatingaGlobalTemporaryTableYouPopulateaGlobalTemporaryTablewithanINSERT/SELECTTheThreeStepstoUseaGlobalTemporaryTableCreatingaDirectTemporaryTableYouPopulateaDirectTemporaryTablewithanINSERT/SELECTTheThreeStepstoUseaDirectTemporaryTableCREATINGADerivedTableNamingtheDerivedTableAliasingtheColumnNamesintheDerivedTableMultipleWaystoAliastheColumnsinaDerivedTableCREATINGaDerivedTableusingtheWITHCommandTheSameDerivedQueryshownThreeDifferentWaysMULTIPLEDerivedTablesusingtheWITHCommandColumnAliasCanDefaultForNormalColumnsMostDerivedTablesAreUsedToJoinToOtherTablesAJoinExampleShowingDifferentColumnAliasStylesTheThreeComponentsofaDerivedTableVisualizeThisDerivedTableOurJoinExampleWiththeWITHSyntaxQuiz-AnswertheQuestionsAnswertoQuiz-AnswertheQuestionsCleverTricksonAliasingColumnsinaDerivedTableADerivedTablelivesonlyforthelifetimeofasinglequeryAnExampleofTwoDerivedTablesinaSingleQueryRECURSIVEDerivedTableHierarchyRECURSIVEDerivedTableQueryRECURSIVEDerivedTableDefinitionWITHRECURSIVEDerivedTableSeedingWITHRECURSIVEDerivedTableLoopingRECURSIVEDerivedTableLoopinginSlowMotionRECURSIVEDerivedTableLoopingContinuedRECURSIVEDerivedTableLoopingContinuedRECURSIVEDerivedTableEndstheLoopingRECURSIVEDerivedTableDefinitionRECURSIVEDerivedTableAnswerSetUsingaTableVariableSub-queryFunctionsAnINListismuchlikeaSubqueryAnINListNeverhasDuplicates–JustlikeaSubqueryAnINListIgnoresDuplicatesTheSubqueryTheThreeStepsofHowaBasicSubqueryWorksTheseareEquivalentQueriesTheFinalAnswerSetfromtheSubqueryQuiz-AnswertheDifficultQuestionAnswertoQuiz-AnswertheDifficultQuestionShouldyouuseaSubqueryofaJoinQuiz-WritetheSubqueryAnswertoQuiz-WritetheSubqueryQuiz-WritetheMoreDifficultSubqueryAnswertoQuiz-WritetheMoreDifficultSubqueryQuiz–WritetheExtremeSubqueryAnswertoQuiz–WritetheExtremeSubqueryQuiz-WritetheSubquerywithanAggregateAnswertoQuiz-WritetheSubquerywithanAggregateQuiz-WritetheCorrelatedSubqueryAnswertoQuiz-WritetheCorrelatedSubqueryTheBasicsofaCorrelatedSubqueryTheTopQueryalwaysrunsfirstinaCorrelatedSubqueryCorrelatedSubqueryExamplevs.
aJoinwithaDerivedTableQuiz-ASecondChancetoWriteaCorrelatedSubqueryAnswer-ASecondChancetoWriteaCorrelatedSubqueryQuiz-AThirdChancetoWriteaCorrelatedSubqueryAnswer-AThirdChancetoWriteaCorrelatedSubqueryQuiz-LastChancetoWriteaCorrelatedSubqueryAnswer–LastChancetoWriteaCorrelatedSubqueryQuiz–WritetheExtremeCorrelatedSubqueryAnswerToQuiz–WritetheExtremeCorrelatedSubqueryQuiz-WritetheNOTSubqueryAnswertoQuiz-WritetheNOTSubqueryQuiz-WritetheSubqueryusingaWHEREClauseAnswer-WritetheSubqueryusingaWHEREClauseQuiz–WritetheTripleSubqueryAnswertoQuiz–WritetheTripleSubqueryQuiz–HowmanyrowsreturnonaNOTINwithaNULLAnswer–HowmanyrowsreturnonaNOTINwithaNULLHowtohandleaNOTINwithPotentialNULLValuesUsingaCorrelatedExistsHowaCorrelatedExistsmatchesupTheCorrelatedNOTExistsTheCorrelatedNOTExistsAnswerSetQuiz–HowmanyrowscomebackfromthisNOTExistsAnswer–HowmanyrowscomebackfromthisNOTExistsWindowFunctionsOLAPTheRow_NumberCommandQuiz–HowdidtheRow_NumberResetQuiz–HowdidtheRow_NumberResetUsingaDerivedTableandRow_NumberOrderedAnalyticsOVERRANKandDENSERANKRANKDefaultstoAscendingOrderGettingRANKtoSortinDESCOrderRANK()OVERandPARTITIONBYCSUM–RowsUnboundedPrecedingExplainedCSUM–MakingSenseoftheDataCSUM–MakingEvenMoreSenseoftheDataCSUM–TheMajorandMinorSortKey(s)TheANSICSUM–GettingaSequentialNumberTroubleshootingtheANSIOLAPonaGROUPBYResetwithaPARTITIONBYStatementPARTITIONBYonlyResetsaSingleOLAPnotALLofthemCURRENTROWANDUNBOUNDEDFOLLOWINGDifferentWindowingOptionsMovingSumhasaMovingWindowHowANSIMovingSUMHandlestheSortQuiz–HowisthatTotalCalculatedAnswertoQuiz–HowisthatTotalCalculatedMovingSUMevery3-rowsVsaContinuousAveragePartitionbyResetsanANSIOLAPTheMovingWindowisCurrentRowandPrecedingHowMovingAverageHandlestheSortMovingAverageMovingAverageQuiz–HowisthatTotalCalculatedAnswertoQuiz–HowisthatTotalCalculatedQuiz–Howisthat4thRowCalculatedAnswertoQuiz–Howisthat4thRowCalculatedMovingAverageevery3-rowsVsaContinuousAveragePartitionbyResetsanANSIOLAPMovingDifferenceusingANSISyntaxMovingDifferenceusingANSISyntaxwithPartitionByCOUNTOVERforaSequentialNumberCOUNTOVERwithoutRowsUnboundedPrecedingQuiz–WhatcausedtheCOUNTOVERtoResetAnswertoQuiz–WhatcausedtheCOUNTOVERtoResetTheMAXOVERCommandMAXOVERwithPARTITIONBYResetMAXOVERWithoutRowsUnboundedPrecedingTheMINOVERCommandTroubleshootingMINOVERFindingaValueofaColumnintheNextRowwithMINTheCSUMforEachProduct_IdandtheNextStartDateQuiz–FillintheBlankAnswer–FillintheBlankHowNtileWorksNtileNtileContinuedNtilePercentileAnotherNtileExampleUsingTertiles(PartitionsofFour)NTILENTILEUsingaValueof10NTILEwithaPartitionUsingFIRST_VALUEFIRST_VALUEFIRST_VALUEafterSortingbytheHighestValueFIRST_VALUEwithPartitioningUsingLAST_VALUELAST_VALUEUsingLAGandLEADUsingLEADUsingLEADWithandOffsetof2LEADLEADWithPartitioningUsingLAGLAGLAGwithPartitioningCUME_DISTSUM(SUM(n))WorkingwithStringsTheASCIIFunctionTheCHARFunctionTheUNICODEFunctionTheNCHARFunctionTheLENFunctionTheDATALENGTHFunctionConcatenationTheRTRIMandLTRIMCommandtrimsSpacesTheSUBSTRINGCommandUsingSUBSTRINGtomovebackwardsHowSUBSTRINGWorkswithaStartingPositionof-1HowSUBSTRINGWorkswithanEndingPositionof0ConcatenationandSUBSTRINGSUBSTRINGandDifferentAliasingTheLEFTandRIGHTFunctionsFourConcatenationsTogetherTheDATALENGTHFunctionandRTRIMAVisualoftheTRIMCommandUsingConcatenationCHARINDEXFunctionFindsaLetter(s)PositioninaStringTheCHARINDEXCommandisbrilliantwithSUBSTRINGTheCHARINDEXCommandUsingaLiteralPATINDEXFunctionPATINDEXFunctiontoFindaCharacterPatternSOUNDEXFunctiontoFindaSoundDIFFERENCEFunctiontoQuantileaSoundTheREPLACEFunctionLENandREPLACEFunctionsforNumberofOccurrencesREPLICATEFunctionSTUFFFunctionSTUFFwithoutDeletingFunctionUPPERandlowerFunctionsChapter12-InterrogatingtheDataQuiz–WhatwouldtheAnswerbeAnswertoQuiz–WhatwouldtheAnswerbeTheNULLIFCommandQuiz–FillintheAnswersfortheNULLIFCommandAnswer–FillintheAnswersfortheNULLIFCommandTheCOALESCECommand–FillIntheAnswersTheCOALESCEAnswerSetCOALESCEisEquivalenttoThisCASEStatementTheBasicsofCAST(ConvertandStore)SomeGreatCAST(ConvertandStore)ExamplesSomeGreatCAST(ConvertandStore)ExamplesARoundingExampleQuiz-CASTExamplesAnswertoQuiz-CASTExamplesQuiz-TheBasicsoftheCASEStatementsAnswertoQuiz-TheBasicsoftheCASEStatementsUsinganELSEintheCaseStatementUsinganELSEasaSafetyNetRulesforaValuedCaseStatementRulesforaSearchedCaseStatementValuedCaseVs.
ASearchedCaseQuiz-ValuedCaseStatementAnswer-ValuedCaseStatementQuiz-SearchedCaseStatementAnswer-SearchedCaseStatementQuiz-WhenNOELSEispresentinCASEStatementAnswer-WhenNOELSEispresentinCASEStatementQuiz-WhenanAliasisNOTusedinaCASEStatementAnswer-WhenanAliasisNOTusedinaCASEStatementCombiningSearchedCaseandValuedCaseATrickforgettingaHorizontalCaseNestedCasePutaCASEintheORDERBYTableCreateandDataTypesCreatingaTablethatisaHeapHeapPageExtentsCreatingaTableThatHasaClusteredIndexClusteredIndexPageWhenDoICreateaClusteredIndexB-TreesTheBuildingofaB-TreeforaClusteredIndex(1of3)TheBuildingofaB-TreeforaClusteredIndex(2of3)TheBuildingofaB-TreeforaClusteredIndex(3of3)TheRowOffsetArrayistheGuidanceSystemforEveryRowTheRowOffsetArrayProvidesTwoSearchOptions(1of2)TheRowOffsetArrayProvidesTwoSearchOptions(2of2)TheRowOffsetArrayHelpswithInsertsAddinganIndexWhenDoICreateaNonClusteredIndexB-TreeforNonClusteredIndexonaClusteredTable(1of2)B-TreeforNonClusteredIndexonaClusteredTable(2of2)AddingaNonClusteredIndextoaHeapB-TreeforNonClusteredIndexonaHeapTable(1of2)B-TreeforaNonClusteredIndexonaHeapTable(2of2)SELECTINTOSELECTINTOAPrimaryKeyConstraintTheDifferencebetweenaPrimarykeyvs.
UniqueConstraintPrimaryKeyForeignKeyConstraintsMoreInformationaboutForeignKeyConstraintsCheckConstraintDefaultValuesIdentityColumnsComputedColumnsCompressionROWVERSIONViewFunctionsTheFundamentalsofViewsCreatingaSimpleViewtoRestrictSensitiveColumnsCreatingaSimpleViewtoRestrictRowsBasicRulesforViewsHowtoModifyaViewWhyBotherToALTERAViewTwoExceptionstotheORDERBYRuleinsideaViewHowtoGetHELPwithaViewHowtoGetHELPwithaViewViewssometimesCREATEDforFormattingorRowSecurityCreatingaViewtoJoinTablesTogetherYouSelectFromaViewAnotherWaytoAliasColumnsinaViewCREATETheStandardWayMostAliasingisdoneWhatHappensWhenBothAliasingOptionsArePresentResolvingAliasingProblemsinaViewCREATEAnswertoResolvingAliasingProblemsinaViewCREATEAggregatesonViewAggregatesAlteringaTableAlteringaTableafteraViewhasbeencreatedAViewthatErrorsafterAnALTERTroubleshootingaViewUpdatingDatainaTablethroughaViewLoadingDatathroughaViewMaintenanceRestrictionsonaTablethroughaViewDataManipulationLanguage(DML)INSERTSyntax#1INSERTExamplewithSyntax1INSERTSyntax#2INSERTExamplewithSyntax2INSERTExamplewithSyntax3INSERT/SELECTCommandINSERT/SELECTExampleusingAllColumns(*)INSERT/SELECTExamplewithLessColumnsTheUPDATECommandBasicSyntaxTwoUPDATEExamplesSubqueryUPDATECommandSyntaxExampleofSubqueryUPDATECommandJoinUPDATECommandSyntaxExampleofanUPDATEJoinCommandFastUPDATETheDELETECommandBasicSyntaxTwoDELETEExamplestoDELETEALLRowsinaTableToDELETEortoTRUNCATETRUNCATEisDifferentfromDELETEADELETEExampleDeletingonlySomeoftheRowsWanttoknowHowManyRowswerejustchangedSubqueryandJoinDELETECommandSyntaxExampleofSubqueryDELETECommandExampleofJoinDELETECommandMERGEINTOMERGEINTOMERGEINTOMERGEINTOMERGEINTOMERGEINTOExamplethatMatchesMERGEINTOExamplethatdoesNOTMatchUserDefinedFunctions(UDFs)UserDefinedFunctions(UDFs)UserDefinedFunctionExampleReplaceReplaceUserDefinedTypes(UDTs)SetOperatorsFunctionsRulesofSetOperatorsINTERSECTExplainedLogicallyINTERSECTExplainedLogicallyUNIONExplainedLogicallyUNIONExplainedLogicallyUNIONALLExplainedLogicallyUNIONALLExplainedLogicallyEXCEPTExplainedLogicallyAnotherEXCEPTExampleEXCEPTExplainedLogicallyinReverseOrderAnEqualAmountofColumnsinbothSELECTListColumnsintheSELECTlistshouldbefromthesameDomainTheTopQueryhandlesallAliasesTheBottomQuerydoestheORDERBYGreatTrick:PlaceyourSetOperatorinaDerivedTableUNIONVsUNIONALLUsingUNIONALLandLiteralsAGreatExampleofhowEXCEPTworksUSINGMultipleSETOperatorsinaSingleRequestChangingtheOrderofPrecedencewithParenthesesBuildingGroupingSetsUsingUNIONThreeGroupingSetsUsingaUNIONStoredProceduresCreatingaStoredProcedureExecutingaStoredProcedureThereareThreeWaystoExecuteaStoredProcedureDroppingaStoredProcedurePassinganInputParametertoaStoredProcedureExecutingWithPositionalParametersvs.
NamedParametersPassinganOutputParametertoaStoredProcedureChangingaStoredProcedurewithanALTERAnswerSetfortheAlteredStoredProcedureDisplayingaStoredProcedure'sDefinitionEncryptingaStoredProcedure'sDefinitionUsingaStoredProceduretoDeleteaRowADifferentMethodtoDeleteaRowDeletingaRowUsinganInputParameterUsingLoopsinStoredProceduresStoredProcedureWorkshopLoopingwithaWHILEStatementStatisticalAggregateFunctionsTheStatsTableAboveistheStats_Tabledatainwhichwewilluseinourstatisticalexamples.
TheVARandVARPFunctionsAVARExampleAVARPExampleTheSTDEVandSTDEVPFunctionsASTDEVExampleASTDEVPExampleNexusNexusisNowAvailableontheMicrosoftAzureCloudNexusQueriesEveryMajorSystemSetupofNexusisaseasyaspieSetupofNexusisaseasyas1,2,3NexusDataVisualizationNexusDataVisualizationNexusDataVisualizationShowsWhatTablesCanBeJoinedNexusisdoingaFive-TableJoinNexusGeneratestheSQLAutomaticallyNexusDeliverstheReportCross-SystemJoinsfromTeradata,OracleandSQLServerTheTaboftheSuperJoinBuilderThe9TabsoftheSuperJoinBuilder–ObjectsTab1SelectingColumnsintheObjectsTabThe9TabsoftheSuperJoinBuilder–ColumnsTab2RemovingColumnsfromtheReportintheColumnsTabThe9TabsoftheSuperJoinBuilder–SortingTab3The9TabsoftheSuperJoinBuilder–JoinsTab4The9TabsoftheSuperJoinBuilder–WhereTab5UsingtheWHERETabForAdditionalWHEREorANDThe9TabsoftheSuperJoinBuilder–SQLTab6The9TabsoftheSuperJoinBuilder–AnswerSetTab7The9TabsoftheSuperJoinBuilder–AnalyticsTab9AnalyticsTabAnalyticsTab–OLAPExampleAnalyticsTab–OLAPExampleofSQLGeneratedAnalyticsTab–GroupingSetsExampleAnalyticsTab–GroupingSetsAnswerSetNexusDataMovementMovingaSingleTabletoaDifferentSystemTheSingleTableDataMovementScreenMovinganEntireDatabasetoaDifferentSystemTheDatabaseMoverScreenTheDatabaseMoverOptionsTabConvertingDDLTableStructuresConvertingDDLTableStructuresConvertingDDLTableStructuresHoundDogCompressionHoundDogCompressiononTeradata
MinorSortsMultipleSortKeysusingNamesvs.
NumbersSortsareAlphabetical,NOTLogicalUsingACASEStatementtoSortLogicallyAnOrderbyThatUsesanExpressionHowtoALIASaColumnNameAliasingaColumnNamewithSpacesorReservedWordsAMissingCommacanbyMistakebecomeanAliasCommentsusingDoubleDashesareSingleLineCommentsCommentsforMulti-LinesCommentsforMulti-LinesasDoubleDashesperLineAGreatTechniqueforCommentstoLookforSQLErrorssp_helpattheDatabaseLevelsp_helpattheObjectLevelGettingSystemInformationGettingAdditionalSystemInformationTheWHEREClauseTheWHEREClauselimitsReturningRowsDoubleQuotedAliasesareforReservedWordsandSpacesUsingAColumnALIASInAWHEREClauseUsingAColumnALIASInAnORDERBYClauseInWhatOrderDoesSQLServerProcessAQueryCharacterDataneedsSingleQuotesintheWHEREClauseCharacterDataneedsSingleQuotes,butNumbersDon'tDeclaringaVariableComparisonsagainstaNullValueNULLmeansUNKNOWNDATAsoEqual(=)won'tWorkUseISNULLorISNOTNULLwhendealingwithNULLsNULLisUNKNOWNDATAsoNOTEqualwon'tWorkUseISNULLorISNOTNULLwhendealingwithNULLsUsingGreaterThanorEqualTo(>=)ANDintheWHEREClauseTroubleshootingANDORintheWHEREClauseTroubleshootingOrTroubleshootingCharacterDataUsingDifferentColumnsinanANDStatementQuiz–HowmanyrowswillreturnAnswertoQuiz–HowmanyrowswillreturnWhatistheOrderofPrecedenceUsingParenthesestochangetheOrderofPrecedenceUsinganINListinplaceofORTheINListisanExcellentTechniqueINListvs.
ORbringsthesameResultsTheINListCanUseCharacterDataUsingaNOTINListNullValuesinaNOTINListBringBackNoRowsATechniqueforHandlingNullswithaNOTINListBETWEENisInclusiveNOTBETWEENisAlsoInclusiveLIKEcommandUnderscoreisWildcardforoneCharacterLIKEcommandusingaRangeofValuesLIKEcommandusingaNOTRangeofValuesLIKECommandWorksDifferentlyonCharVsVarcharTroubleshootingLIKECommandonCharacterDataIntroducingtheRTRIMCommandQuiz–WhatDataisLeftJustifiedandwhatisRightNumbersareRightJustifiedandCharacterDataisLeftAnswer–WhatDataisLeftJustifiedandwhatisRightAnExampleofDatawithLeftandRightJustificationAVisualofCHARACTERDatavs.
VARCHARDataRTRIMcommandRemovesTrailingspacesonCHARDataUsingLikewithanANDClausetoFindMultipleLettersUsingLikewithanORClausetoFindEitherLettersDeclaringaVariableandusingitwiththeLIKECommandEscapeCharacterintheLIKECommandchangesWildcardsEscapeCharactersTurnoffWildcardsintheLIKECommandQuiz–TurnoffthatWildcardANSWER–ToFindthatWildcardDistinct,GroupByandTOPTheDistinctCommandDistinctvs.
GROUPBYQuiz–HowmanyrowscomebackfromtheDistinctAnswer–HowmanyrowscomebackfromtheDistinctTOPCommandTOPCommandisbrilliantwhenORDERBYisused!
TOPCommandwithPERCENTTOPCommandwithPERCENTTheTOPCommandWITHTIESTheTOPCommandUsingaVariableTheTOP1CommandforaRandomSampleAggregationQuiz–YoucalculatetheAnswerSetinyourownMindAnswer–YoucalculatetheAnswerSetinyourownMindThe3RulesofAggregationThereareFiveAggregatesQuiz–HowmanyrowscomebackAnswer–HowmanyrowscomebackTroubleshootingAggregatesGROUPBYwhenAggregatesandNormalColumnsMixGROUPBYdeliversonerowperGroupCount_BigLimitingRowsandImprovingPerformancewithWHEREWHEREClauseinAggregationlimitsunneededCalculationsKeywordHAVINGtestsAggregatesaftertheyaretotaledCHECKSUM_AGGtoCheckIfaTableHasChangedUsingDistinctWithintheAggregateGroupbyGroupingSetsGroupbyRollupAnswerSetforGroupbyRollupQueryCreatingaCubeAnswerSetforCubeQueryAnEasyExampleofCreatingaCubeQuiz-GROUPBYGROUPINGSETSChallengeAnswerToQuiz-GROUPBYGROUPINGSETSChallengeGettingtheAverageValuesperColumnAverageValuesperColumnforallColumnsinaTableJoinFunctionsATwo-TableJoinUsingTraditionalSyntaxAtwo-tablejoinusingNon-ANSISyntaxwithTableAliasYouCanFullyQualifyAllColumnsAtwo-tablejoinusingANSISyntaxBothQuerieshavethesameResultsandPerformanceQuiz–CanYouFinishtheJoinSyntaxAnswertoQuiz–CanYouFinishtheJoinSyntaxQuiz–CanYouFindtheErrorAnswertoQuiz–CanYouFindtheErrorSuperQuiz–CanYouFindtheDifficultErrorAnswertoSuperQuiz–CanYouFindtheDifficultErrorQuiz–Whichrowsfrombothtableswon'treturnAnswertoQuiz–WhichrowsfrombothtablesWon'tReturnLEFTOUTERJOINLEFTOUTERJOINResultsRIGHTOUTERJOINRIGHTOUTERJOINExampleandResultsFULLOUTERJOINFULLOUTERJOINResultsWhichTablesaretheLeftandwhichTablesareRightAnswer-WhichTablesaretheLeftandwhicharetheRightINNERJOINwithAdditionalANDClauseANSIINNERJOINwithAdditionalANDClauseANSIINNERJOINwithAdditionalWHEREClauseOUTERJOINwithAdditionalWHEREClauseOUTERJOINwithAdditionalANDClauseOUTERJOINwithAdditionalANDClauseResultsQuiz–WhyisthisconsideredanINNERJOINEvaluationOrderforOuterQueriesTheDREADEDProductJoinTheDREADEDProductJoinResultsTheHorrifyingCartesianproductJoinTheANSICartesianJoinwillERRORQuiz–DotheseJoinsReturntheSameAnswerSetAnswer–DotheseJoinsReturntheSameAnswerSetTheCROSSJOINTheCROSSJOINAnswerSetTheSelfJoinTheSelfJoinwithANSISyntaxQuiz–WillbothqueriesbringbackthesameAnswerSetAnswer–WillbothqueriesbringbackthesameAnswerSetQuiz–WillbothqueriesbringbackthesameAnswerSetAnswer–WillbothqueriesbringbackthesameAnswerSetHowwouldyoujointhesetwotablesAnAssociativeTableisaBridgethatJoinsTwoTablesQuiz–Canyouwritethe3-TableJoinAnswertoquiz–Canyouwritethe3-TableJoinQuiz–Canyouwritethe3-TableJointoANSISyntaxAnswer–Canyouwritethe3-TableJointoANSISyntaxQuiz–CanyouPlacetheONClausesattheEndAnswer–CanyouPlacetheONClausesattheEndThe5-TableJoin–LogicalInsuranceModelQuiz-WriteaFiveTableJoinUsingANSISyntaxAnswer-WriteaFiveTableJoinUsingANSISyntaxQuiz-WriteaFiveTableJoinUsingNon-ANSISyntaxAnswer-WriteaFiveTableJoinUsingNon-ANSISyntaxQuiz–Re-WritethisputtingtheONclausesattheENDAnswer–Re-WritethisputtingtheONclausesattheENDDateFunctionsCurrent_TimestampGetdateDateandTimeKeywordsSYSDATETIMEOFFSETProvidestheTimezoneOffsetSYSDATETIMEOFFSETProvidestheTimezoneOffsetUsingbothCASTandCONVERTinLiteralValuesUsingBothCASTandCONVERTinLiteralValuesUsingbothCASTandCONVERTinLiteralValuesTheDATEADDFunctionTheDATEDIFFFunctionDATEADDFunctionARealWorldExampleforDateAddUsingtheOrderTableDATEPARTFunctionDATEPARTFunctionExamplesYEAR,MONTH,andDAYFunctionsABetterTechniqueforYEAR,MONTH,andDAYFunctionsDATENAMEFunctionDateFormattingTimeFormattingISDATEFunctionTemporaryTablesTherearethreetypesofTemporaryTablesinTEMPDBTablesinTEMPDBarenotyouronlyTemporaryStorageWhatisTEMPDBCreatingaPrivateTemporaryTableYouPopulateaPrivateTemporaryTablewithanINSERT/SELECTTheThreeStepstoUseaPrivateTemporaryTableCreatingaGlobalTemporaryTableYouPopulateaGlobalTemporaryTablewithanINSERT/SELECTTheThreeStepstoUseaGlobalTemporaryTableCreatingaDirectTemporaryTableYouPopulateaDirectTemporaryTablewithanINSERT/SELECTTheThreeStepstoUseaDirectTemporaryTableCREATINGADerivedTableNamingtheDerivedTableAliasingtheColumnNamesintheDerivedTableMultipleWaystoAliastheColumnsinaDerivedTableCREATINGaDerivedTableusingtheWITHCommandTheSameDerivedQueryshownThreeDifferentWaysMULTIPLEDerivedTablesusingtheWITHCommandColumnAliasCanDefaultForNormalColumnsMostDerivedTablesAreUsedToJoinToOtherTablesAJoinExampleShowingDifferentColumnAliasStylesTheThreeComponentsofaDerivedTableVisualizeThisDerivedTableOurJoinExampleWiththeWITHSyntaxQuiz-AnswertheQuestionsAnswertoQuiz-AnswertheQuestionsCleverTricksonAliasingColumnsinaDerivedTableADerivedTablelivesonlyforthelifetimeofasinglequeryAnExampleofTwoDerivedTablesinaSingleQueryRECURSIVEDerivedTableHierarchyRECURSIVEDerivedTableQueryRECURSIVEDerivedTableDefinitionWITHRECURSIVEDerivedTableSeedingWITHRECURSIVEDerivedTableLoopingRECURSIVEDerivedTableLoopinginSlowMotionRECURSIVEDerivedTableLoopingContinuedRECURSIVEDerivedTableLoopingContinuedRECURSIVEDerivedTableEndstheLoopingRECURSIVEDerivedTableDefinitionRECURSIVEDerivedTableAnswerSetUsingaTableVariableSub-queryFunctionsAnINListismuchlikeaSubqueryAnINListNeverhasDuplicates–JustlikeaSubqueryAnINListIgnoresDuplicatesTheSubqueryTheThreeStepsofHowaBasicSubqueryWorksTheseareEquivalentQueriesTheFinalAnswerSetfromtheSubqueryQuiz-AnswertheDifficultQuestionAnswertoQuiz-AnswertheDifficultQuestionShouldyouuseaSubqueryofaJoinQuiz-WritetheSubqueryAnswertoQuiz-WritetheSubqueryQuiz-WritetheMoreDifficultSubqueryAnswertoQuiz-WritetheMoreDifficultSubqueryQuiz–WritetheExtremeSubqueryAnswertoQuiz–WritetheExtremeSubqueryQuiz-WritetheSubquerywithanAggregateAnswertoQuiz-WritetheSubquerywithanAggregateQuiz-WritetheCorrelatedSubqueryAnswertoQuiz-WritetheCorrelatedSubqueryTheBasicsofaCorrelatedSubqueryTheTopQueryalwaysrunsfirstinaCorrelatedSubqueryCorrelatedSubqueryExamplevs.
aJoinwithaDerivedTableQuiz-ASecondChancetoWriteaCorrelatedSubqueryAnswer-ASecondChancetoWriteaCorrelatedSubqueryQuiz-AThirdChancetoWriteaCorrelatedSubqueryAnswer-AThirdChancetoWriteaCorrelatedSubqueryQuiz-LastChancetoWriteaCorrelatedSubqueryAnswer–LastChancetoWriteaCorrelatedSubqueryQuiz–WritetheExtremeCorrelatedSubqueryAnswerToQuiz–WritetheExtremeCorrelatedSubqueryQuiz-WritetheNOTSubqueryAnswertoQuiz-WritetheNOTSubqueryQuiz-WritetheSubqueryusingaWHEREClauseAnswer-WritetheSubqueryusingaWHEREClauseQuiz–WritetheTripleSubqueryAnswertoQuiz–WritetheTripleSubqueryQuiz–HowmanyrowsreturnonaNOTINwithaNULLAnswer–HowmanyrowsreturnonaNOTINwithaNULLHowtohandleaNOTINwithPotentialNULLValuesUsingaCorrelatedExistsHowaCorrelatedExistsmatchesupTheCorrelatedNOTExistsTheCorrelatedNOTExistsAnswerSetQuiz–HowmanyrowscomebackfromthisNOTExistsAnswer–HowmanyrowscomebackfromthisNOTExistsWindowFunctionsOLAPTheRow_NumberCommandQuiz–HowdidtheRow_NumberResetQuiz–HowdidtheRow_NumberResetUsingaDerivedTableandRow_NumberOrderedAnalyticsOVERRANKandDENSERANKRANKDefaultstoAscendingOrderGettingRANKtoSortinDESCOrderRANK()OVERandPARTITIONBYCSUM–RowsUnboundedPrecedingExplainedCSUM–MakingSenseoftheDataCSUM–MakingEvenMoreSenseoftheDataCSUM–TheMajorandMinorSortKey(s)TheANSICSUM–GettingaSequentialNumberTroubleshootingtheANSIOLAPonaGROUPBYResetwithaPARTITIONBYStatementPARTITIONBYonlyResetsaSingleOLAPnotALLofthemCURRENTROWANDUNBOUNDEDFOLLOWINGDifferentWindowingOptionsMovingSumhasaMovingWindowHowANSIMovingSUMHandlestheSortQuiz–HowisthatTotalCalculatedAnswertoQuiz–HowisthatTotalCalculatedMovingSUMevery3-rowsVsaContinuousAveragePartitionbyResetsanANSIOLAPTheMovingWindowisCurrentRowandPrecedingHowMovingAverageHandlestheSortMovingAverageMovingAverageQuiz–HowisthatTotalCalculatedAnswertoQuiz–HowisthatTotalCalculatedQuiz–Howisthat4thRowCalculatedAnswertoQuiz–Howisthat4thRowCalculatedMovingAverageevery3-rowsVsaContinuousAveragePartitionbyResetsanANSIOLAPMovingDifferenceusingANSISyntaxMovingDifferenceusingANSISyntaxwithPartitionByCOUNTOVERforaSequentialNumberCOUNTOVERwithoutRowsUnboundedPrecedingQuiz–WhatcausedtheCOUNTOVERtoResetAnswertoQuiz–WhatcausedtheCOUNTOVERtoResetTheMAXOVERCommandMAXOVERwithPARTITIONBYResetMAXOVERWithoutRowsUnboundedPrecedingTheMINOVERCommandTroubleshootingMINOVERFindingaValueofaColumnintheNextRowwithMINTheCSUMforEachProduct_IdandtheNextStartDateQuiz–FillintheBlankAnswer–FillintheBlankHowNtileWorksNtileNtileContinuedNtilePercentileAnotherNtileExampleUsingTertiles(PartitionsofFour)NTILENTILEUsingaValueof10NTILEwithaPartitionUsingFIRST_VALUEFIRST_VALUEFIRST_VALUEafterSortingbytheHighestValueFIRST_VALUEwithPartitioningUsingLAST_VALUELAST_VALUEUsingLAGandLEADUsingLEADUsingLEADWithandOffsetof2LEADLEADWithPartitioningUsingLAGLAGLAGwithPartitioningCUME_DISTSUM(SUM(n))WorkingwithStringsTheASCIIFunctionTheCHARFunctionTheUNICODEFunctionTheNCHARFunctionTheLENFunctionTheDATALENGTHFunctionConcatenationTheRTRIMandLTRIMCommandtrimsSpacesTheSUBSTRINGCommandUsingSUBSTRINGtomovebackwardsHowSUBSTRINGWorkswithaStartingPositionof-1HowSUBSTRINGWorkswithanEndingPositionof0ConcatenationandSUBSTRINGSUBSTRINGandDifferentAliasingTheLEFTandRIGHTFunctionsFourConcatenationsTogetherTheDATALENGTHFunctionandRTRIMAVisualoftheTRIMCommandUsingConcatenationCHARINDEXFunctionFindsaLetter(s)PositioninaStringTheCHARINDEXCommandisbrilliantwithSUBSTRINGTheCHARINDEXCommandUsingaLiteralPATINDEXFunctionPATINDEXFunctiontoFindaCharacterPatternSOUNDEXFunctiontoFindaSoundDIFFERENCEFunctiontoQuantileaSoundTheREPLACEFunctionLENandREPLACEFunctionsforNumberofOccurrencesREPLICATEFunctionSTUFFFunctionSTUFFwithoutDeletingFunctionUPPERandlowerFunctionsChapter12-InterrogatingtheDataQuiz–WhatwouldtheAnswerbeAnswertoQuiz–WhatwouldtheAnswerbeTheNULLIFCommandQuiz–FillintheAnswersfortheNULLIFCommandAnswer–FillintheAnswersfortheNULLIFCommandTheCOALESCECommand–FillIntheAnswersTheCOALESCEAnswerSetCOALESCEisEquivalenttoThisCASEStatementTheBasicsofCAST(ConvertandStore)SomeGreatCAST(ConvertandStore)ExamplesSomeGreatCAST(ConvertandStore)ExamplesARoundingExampleQuiz-CASTExamplesAnswertoQuiz-CASTExamplesQuiz-TheBasicsoftheCASEStatementsAnswertoQuiz-TheBasicsoftheCASEStatementsUsinganELSEintheCaseStatementUsinganELSEasaSafetyNetRulesforaValuedCaseStatementRulesforaSearchedCaseStatementValuedCaseVs.
ASearchedCaseQuiz-ValuedCaseStatementAnswer-ValuedCaseStatementQuiz-SearchedCaseStatementAnswer-SearchedCaseStatementQuiz-WhenNOELSEispresentinCASEStatementAnswer-WhenNOELSEispresentinCASEStatementQuiz-WhenanAliasisNOTusedinaCASEStatementAnswer-WhenanAliasisNOTusedinaCASEStatementCombiningSearchedCaseandValuedCaseATrickforgettingaHorizontalCaseNestedCasePutaCASEintheORDERBYTableCreateandDataTypesCreatingaTablethatisaHeapHeapPageExtentsCreatingaTableThatHasaClusteredIndexClusteredIndexPageWhenDoICreateaClusteredIndexB-TreesTheBuildingofaB-TreeforaClusteredIndex(1of3)TheBuildingofaB-TreeforaClusteredIndex(2of3)TheBuildingofaB-TreeforaClusteredIndex(3of3)TheRowOffsetArrayistheGuidanceSystemforEveryRowTheRowOffsetArrayProvidesTwoSearchOptions(1of2)TheRowOffsetArrayProvidesTwoSearchOptions(2of2)TheRowOffsetArrayHelpswithInsertsAddinganIndexWhenDoICreateaNonClusteredIndexB-TreeforNonClusteredIndexonaClusteredTable(1of2)B-TreeforNonClusteredIndexonaClusteredTable(2of2)AddingaNonClusteredIndextoaHeapB-TreeforNonClusteredIndexonaHeapTable(1of2)B-TreeforaNonClusteredIndexonaHeapTable(2of2)SELECTINTOSELECTINTOAPrimaryKeyConstraintTheDifferencebetweenaPrimarykeyvs.
UniqueConstraintPrimaryKeyForeignKeyConstraintsMoreInformationaboutForeignKeyConstraintsCheckConstraintDefaultValuesIdentityColumnsComputedColumnsCompressionROWVERSIONViewFunctionsTheFundamentalsofViewsCreatingaSimpleViewtoRestrictSensitiveColumnsCreatingaSimpleViewtoRestrictRowsBasicRulesforViewsHowtoModifyaViewWhyBotherToALTERAViewTwoExceptionstotheORDERBYRuleinsideaViewHowtoGetHELPwithaViewHowtoGetHELPwithaViewViewssometimesCREATEDforFormattingorRowSecurityCreatingaViewtoJoinTablesTogetherYouSelectFromaViewAnotherWaytoAliasColumnsinaViewCREATETheStandardWayMostAliasingisdoneWhatHappensWhenBothAliasingOptionsArePresentResolvingAliasingProblemsinaViewCREATEAnswertoResolvingAliasingProblemsinaViewCREATEAggregatesonViewAggregatesAlteringaTableAlteringaTableafteraViewhasbeencreatedAViewthatErrorsafterAnALTERTroubleshootingaViewUpdatingDatainaTablethroughaViewLoadingDatathroughaViewMaintenanceRestrictionsonaTablethroughaViewDataManipulationLanguage(DML)INSERTSyntax#1INSERTExamplewithSyntax1INSERTSyntax#2INSERTExamplewithSyntax2INSERTExamplewithSyntax3INSERT/SELECTCommandINSERT/SELECTExampleusingAllColumns(*)INSERT/SELECTExamplewithLessColumnsTheUPDATECommandBasicSyntaxTwoUPDATEExamplesSubqueryUPDATECommandSyntaxExampleofSubqueryUPDATECommandJoinUPDATECommandSyntaxExampleofanUPDATEJoinCommandFastUPDATETheDELETECommandBasicSyntaxTwoDELETEExamplestoDELETEALLRowsinaTableToDELETEortoTRUNCATETRUNCATEisDifferentfromDELETEADELETEExampleDeletingonlySomeoftheRowsWanttoknowHowManyRowswerejustchangedSubqueryandJoinDELETECommandSyntaxExampleofSubqueryDELETECommandExampleofJoinDELETECommandMERGEINTOMERGEINTOMERGEINTOMERGEINTOMERGEINTOMERGEINTOExamplethatMatchesMERGEINTOExamplethatdoesNOTMatchUserDefinedFunctions(UDFs)UserDefinedFunctions(UDFs)UserDefinedFunctionExampleReplaceReplaceUserDefinedTypes(UDTs)SetOperatorsFunctionsRulesofSetOperatorsINTERSECTExplainedLogicallyINTERSECTExplainedLogicallyUNIONExplainedLogicallyUNIONExplainedLogicallyUNIONALLExplainedLogicallyUNIONALLExplainedLogicallyEXCEPTExplainedLogicallyAnotherEXCEPTExampleEXCEPTExplainedLogicallyinReverseOrderAnEqualAmountofColumnsinbothSELECTListColumnsintheSELECTlistshouldbefromthesameDomainTheTopQueryhandlesallAliasesTheBottomQuerydoestheORDERBYGreatTrick:PlaceyourSetOperatorinaDerivedTableUNIONVsUNIONALLUsingUNIONALLandLiteralsAGreatExampleofhowEXCEPTworksUSINGMultipleSETOperatorsinaSingleRequestChangingtheOrderofPrecedencewithParenthesesBuildingGroupingSetsUsingUNIONThreeGroupingSetsUsingaUNIONStoredProceduresCreatingaStoredProcedureExecutingaStoredProcedureThereareThreeWaystoExecuteaStoredProcedureDroppingaStoredProcedurePassinganInputParametertoaStoredProcedureExecutingWithPositionalParametersvs.
NamedParametersPassinganOutputParametertoaStoredProcedureChangingaStoredProcedurewithanALTERAnswerSetfortheAlteredStoredProcedureDisplayingaStoredProcedure'sDefinitionEncryptingaStoredProcedure'sDefinitionUsingaStoredProceduretoDeleteaRowADifferentMethodtoDeleteaRowDeletingaRowUsinganInputParameterUsingLoopsinStoredProceduresStoredProcedureWorkshopLoopingwithaWHILEStatementStatisticalAggregateFunctionsTheStatsTableAboveistheStats_Tabledatainwhichwewilluseinourstatisticalexamples.
TheVARandVARPFunctionsAVARExampleAVARPExampleTheSTDEVandSTDEVPFunctionsASTDEVExampleASTDEVPExampleNexusNexusisNowAvailableontheMicrosoftAzureCloudNexusQueriesEveryMajorSystemSetupofNexusisaseasyaspieSetupofNexusisaseasyas1,2,3NexusDataVisualizationNexusDataVisualizationNexusDataVisualizationShowsWhatTablesCanBeJoinedNexusisdoingaFive-TableJoinNexusGeneratestheSQLAutomaticallyNexusDeliverstheReportCross-SystemJoinsfromTeradata,OracleandSQLServerTheTaboftheSuperJoinBuilderThe9TabsoftheSuperJoinBuilder–ObjectsTab1SelectingColumnsintheObjectsTabThe9TabsoftheSuperJoinBuilder–ColumnsTab2RemovingColumnsfromtheReportintheColumnsTabThe9TabsoftheSuperJoinBuilder–SortingTab3The9TabsoftheSuperJoinBuilder–JoinsTab4The9TabsoftheSuperJoinBuilder–WhereTab5UsingtheWHERETabForAdditionalWHEREorANDThe9TabsoftheSuperJoinBuilder–SQLTab6The9TabsoftheSuperJoinBuilder–AnswerSetTab7The9TabsoftheSuperJoinBuilder–AnalyticsTab9AnalyticsTabAnalyticsTab–OLAPExampleAnalyticsTab–OLAPExampleofSQLGeneratedAnalyticsTab–GroupingSetsExampleAnalyticsTab–GroupingSetsAnswerSetNexusDataMovementMovingaSingleTabletoaDifferentSystemTheSingleTableDataMovementScreenMovinganEntireDatabasetoaDifferentSystemTheDatabaseMoverScreenTheDatabaseMoverOptionsTabConvertingDDLTableStructuresConvertingDDLTableStructuresConvertingDDLTableStructuresHoundDogCompressionHoundDogCompressiononTeradata
- Joinsql相关文档
- 服务mysql下载
- 所示5.6版本MySQL的下载、安装及配置过程
- 安装MySQL下载安装、配置与使用(win7x64)
- 安装[msn怎么下载安装使用]MySQL下载安装、配置与使用（win7x64）
- 安装[mysql安装图解]MySQL下载与安装5.6.10.1安装图解
- 安装[mysql安装图解]MySQL下载与安装5.6.10.1安装图解
ThomasHost(月付5美元)美国/法国/英国/加拿大KVM,支持Windows
ThomasHost域名注册自2012年，部落最早分享始于2016年，还算成立了有几年了，商家提供基于KVM架构的VPS，数据中心包括美国、法国、英国、加拿大和爱尔兰等6个地区机房，VPS主机套餐最低2GB内存起步，支持Windows或者Linux操作系统，1Gbps端口不限制流量。最近商家提供了一个5折优惠码，优惠后最低套餐月付5美元起。下面列出部分套餐配置信息。CPU：1core内存：2GB硬...
云雀云（larkyun）低至368元/月，广州移动1Gbps带宽VDS（带100G防御），常州联通1Gbps带宽VDS
云雀云（larkyun）当前主要运作国内线路的机器，最大提供1Gbps服务器，有云服务器（VDS）、也有独立服务器，对接国内、国外的效果都是相当靠谱的。此外，还有台湾hinet线路的动态云服务器和静态云服务器。当前，larkyun对广州移动二期正在搞优惠促销！官方网站：https://larkyun.top付款方式：支付宝、微信、USDT广移二期开售8折折扣码：56NZVE0YZN （试用于常州联...
FBICDN，0.1元解决伪墙/假墙攻击，超500 Gbps DDos 防御，每天免费流量高达100G，免费高防网站加速服务
最近很多网站都遭受到了伪墙/假墙攻击，导致网站流量大跌，间歇性打不开网站。这是一种新型的攻击方式，攻击者利用GWF规则漏洞，使用国内服务器绑定host的方式来触发GWF的自动过滤机制，造成GWF暂时性屏蔽你的网站和服务器IP（大概15分钟左右），使你的网站在国内无法打开，如果攻击请求不断，那么你的网站就会是一个一直无法正常访问的状态。常规解决办法：1，快速备案后使用国内服务器，2，使用国内免备案服...
mysql下载为你推荐
-
操作http163yeah网易的163，126，yeah邮箱有什么不同？邮件eset95188是什么电话95188是什么号码我刚收到短信是什么支付宝的验证码泉州商标注册泉州注册一个商标具体要怎么弄？具体流程是什么？网络u盘网吧网络U盘是怎么弄的如何发帖子手机百度贴吧怎么发帖子？如何发帖子怎么发帖子啊？zencart模板要把zen cart用好的话，需要具备哪些知识？关闭评论抖音上购物后给卖家的评价怎么删除掉？