1Mondrian性能調(diào)試（數(shù)據(jù)庫）Oracle性能調(diào)試占很大比重Aggragatetable是主要方法,機(jī)制調(diào)試SQL跟蹤1.1設(shè)置SQL跟蹤SQL跟蹤語句要輸出到指定文件，因而SQL跟蹤的設(shè)置與logging的設(shè)置有關(guān)。Mondrian的設(shè)置Mondiran的聯(lián)機(jī)資料，Configration部分有SQL的設(shè)置如下:PropertyTyPeDefaultvalueDescriptionTracingmondrian.trace.levelint一Theamountoftracingdisplayed.Iftracelevelisabove0,SQLtracingwillbeenabledandloggedaspertheout.filebelow.ThisisseparatefromLog4jlogging.mondrian.debug.out.filestringSystem.outThenameofthefiletowhichtracingistobewritten.mondrian.rolap.RolapResult.printCacheablesbooleanfalseObsolete.據(jù)網(wǎng)上相關(guān)文檔記錄：將WEB-INF/Mpeties文件中加入mondrian.trace.level=1,SQL語句即輸出到System.out，為了將SQL跟蹤語句輸出到指定文件，需要配置log4jJBoss的Logging設(shè)置JBoss的最大特色就是LOGGING集中管理，各應(yīng)用不必自帶LOG4J.JAR和配置文件。詳細(xì)內(nèi)容參見《JBoss:

ADeveloper'sNotebook》Charpter6Logging簡單的說conf/Log4j.xml配置的是一個(gè)MAP，即二元組集合。（這個(gè)二元組的第一元是LOGGER日志生成器，第二元是APPENDER輸出設(shè)備。）也就說log4j配置文件說明了，那些日志生成器輸出到那些輸出設(shè)備。請注意Category和Root的概念，了解JBOSS中的server.log輸出設(shè)備.可以在server.log中查看SQL語句如下：QUANTITY")as='2002'groupby2007-02-0110:15:54,187DEBUG[mondrian.rolap?RolapUtilQUANTITY")as='2002'groupby如下設(shè)置，可以將SQL語句輸出到指定文件1．刪除mondrain自帶的log4j*.jar2.在conf/log4j.xml增加如下設(shè)置2.1指定輸出文件sqltrace.log<!--At.irne/dateInasedrollingappenderforrnondrianaq1t.racing--><appenclern；=Ltne=rrFILErrc1；=lss=rrurg?lugging■曰pp已nclei:?Dai1yRullingFileAppenclerrr><err□rHand1frclass=prurg?jbuss?lugging?utiJ.?On1yOneeErrorHand1erpr/><pari^LtniiiziiLie="Filerpvalue="3{iboss?s已rver?huiuE?dir}/log/汙匸i丄t?匸ace?lug"/><P曰匸曰rnn；=tt[ie=,pAppend"value="false"/>par；5Ltnn；5Ltne=rrDatePa匸匸ernrrvalup=rr1?丨yyyy-MM-delrr/>layuutclass=pr□rg?apache?丄□g理j?PatternLayuut."><Pari^Ltniiizune="C□nversinnFat.tern"value="%d%-5p[%c]%in%n”/></layuut></appenLler><!--Atime/datebasedrollingappenderformondriansqltracing--><appendername="FILE"class="org.jboss.logging.appender.DailyRollingFileAppender"><errorHandlerclass="org.jboss.logging.util.OnlyOnceErrorHandler"/><paramname="File"value="${jboss.server.home.dir}/log/sqltrace.log"/><paramname="Append"value="false"/><paramname="DatePattern"value="'.'yyyy-MM-dd"/><layoutclass="org.apache.log4j.PatternLayout"><paramname="ConversionPattern"value="%d%-5p[%c]%m%n"/></layout></appender>2.2綁定日志生成器<categoryname=rrmondrian.rolap.RolapUtilrr><priorityvalue=rrDEBUGrr/><appender-refref=rrSQLTRACErr/></category><categoryname="mondrian.rolap.RolapUtil"><priorityvalue="DEBUG"/><appender-refref="SQLTRACE"/></category>1.2根據(jù)SQL跟蹤設(shè)計(jì)AGGTABLE默認(rèn)規(guī)則：以下聚集表均根據(jù)mondrian的默認(rèn)rules進(jìn)行設(shè)計(jì)命名。具體為：聚集表內(nèi)容規(guī)則表名agg.+${facttablename}factcount列名factcount，必須是整型Level列名${hierarchy_name}_${level_name}${hierarchy_name}_${level_column_name}${usage_prefix}${level_column_name}${level_column_name}Measure列名${measure_name}${measure_column_name}${measure_column_name}_${aggregate_name}大小寫規(guī)則忽略大小寫1.2.1Lost所有維的聚集目的：對所有維都實(shí)現(xiàn)最粗粒度的聚集。以快速實(shí)現(xiàn)包含所有維的默認(rèn)allmember的查詢語句。在數(shù)據(jù)庫中創(chuàng)建聚集表,并從事實(shí)表中選擇數(shù)據(jù)插入到聚集表創(chuàng)建聚集表createtableAGG_1_DC_JOBCOLLECT(JCPASSQUANTITYNUMBER(10)NOTNULL,JCREJECTQUANTITYNUMBER(10)NOTNULL,JCREWORKQUANTITYNUMBER(10)NOTNULL,FACT_COUNTINTEGERNOTNULL);插入數(shù)據(jù)INSERTINTOAGG_1_DC_JOBCOLLECT(JCPASSQUANTITYJCREJECTQUANTITYJCREWORKQUANTITYFACT_COUNT)SELECTSUM(JCPASSQUANTITY)ASJCPASSQUANTITYSUM(JCREJECTQUANTITY)ASJCREJECTQUANTITY,SUM(JCREWORKQUANTITY)ASJCREWORKQUANTITY,COUNT(*)ASFACT_COUNTFROMDCJOBCOLLECT1?2?1?2MDX查詢語句select{[Measures].[jcpassquantity]}ONCOLUMNSfrom[workcenter]查詢結(jié)果指標(biāo)jcpassquantity12,16跟蹤sqlDEBUG[mondrian.rolap.RolapUtil]Segment.load:executingsql[select"AGG_1_DC_JOBCOLLECT"."JCPASSQUANTITY"as"m0"from"AGG_1_DC_JOBCOLLECT""AGG1DCJOBCOLLECT"],0ms若不設(shè)置聚集表，則查詢sql如下DEBUG[mondrian.rolap.RolapUtil]Segment.load:executingsql[selectsum("DC_JOBCOLLECT"."JCPASSQUANTITY")as"m0"from"DC_JOBCOLLECT""DC_JOBCOLLECT"],344ms121.5時(shí)間比較（在Toad中執(zhí)行使用和未使用聚集表的sql語句比較執(zhí)行時(shí)間）selectsum("DC_JOBCOLLECT"."JCPASSQUANTITY")as"m0"from"DC_JOBCOLLECT""DC_JOBCOLLECT"時(shí)間：468msecsselect"AGG_1_DC_JOBCOLLECT"."JCPASSQUANTITY"as"m0"from"AGG_1_DC_JOBCOLLECT""AGG_1_DC_JOBCOLLECT"時(shí)間：149msecsCollapsed時(shí)間維到quarter，Lost其它所有維目的：對時(shí)間維做到quarterlevel的聚集，對其它維做最粗粒度的聚集。以快速實(shí)現(xiàn)在時(shí)間維上聚集到quarterlevel上，在其它維上包含默認(rèn)allmember的查詢語句。在數(shù)據(jù)庫中創(chuàng)建聚集表,并從事實(shí)表選擇數(shù)據(jù)插入到聚集表中創(chuàng)建聚集表createtableAGG3QUARTERDCJOBCOLLECT(

THE_YEARVARCHAR2(4)NOTNULL,THE_QUARTERVARCHAR2(4)NOTNULL,JCPASSQUANTITYNUMBER(10)NOTNULL,JCREJECTQUANTITYNUMBER(10)NOTNULL,JCREWORKQUANTITYNUMBER(10)NOTNULL,FACT_COUNTINTEGERNOTNULL);插入數(shù)據(jù)到聚集表INSERTINTOAGG_3_QUARTER_DC_JOBCOLLECT(THE_YEAR,THE_QUARTER,JCPASSQUANTITYJCREJECTQUANTITYJCREWORKQUANTITYFACT_COUNT)SELECTDIM.THE_YEAR,DIM.THE_QUARTER,SUM(JCPASSQUANTITY)ASJCPASSQUANTITYSUM(JCREJECTQUANTITY)ASJCREJECTQUANTITY,SUM(JCREWORKQUANTITY)ASJCREWORKQUANTITY,COUNT(*)ASFACT_COUNTFROMDC_JOBCOLLECTBASE,DC_TIMEDIMWHEREBASE.JCCOLLECTTIME=DIM.TIME_IDGROUPBYDIM.THE_YEAR,DIM.THEQUARTER;1?2?2?2MDX查詢語句select{[Measures].[jcpassquantity]}ONCOLUMNS,{[time].[alltime].[2004].[l]}ONROWSfrom[workcenter]查詢結(jié)果指標(biāo)time>jcpassquantity+112,0跟蹤sqlDEBUG[mondrian.rolap.RolapUtil]Segment.load:"AGG_3_QUARTER_DC_JOBCOLLECT"."THE_QUARTER"executingDEBUG[mondrian.rolap.RolapUtil]Segment.load:"AGG_3_QUARTER_DC_JOBCOLLECT"."THE_QUARTER"executingsqlas"AGG3QUARTERDCJOBCOLLECT"."THEYEAR"as[select"cO","cl",”AGG_3_QUARTER_DC_J0BC0LLECT"."JCPASSQUANTITY"as"m0"from"AGG_3_QUARTER_DC_JOBCOLLECT""AGG_3_QUARTER_DC_JOBCOLLECT"where"AGG_3_QUARTER_DC_JOBCOLLECT"."THE_QUARTER"=Tand"AGG3QUARTERDCJOBCOLLECT"."THEYEAR"='2004'],16ms若不設(shè)置聚集表，則查詢sql如下DEBUG[mondrian.rolap.RolapUtil]Segment.load:executingsql[select"DC_TIME"."THE_QUARTER"as"c0","DC_TIME"."THE_YEAR"as"c1",sum("DC_JOBCOLLECT"."JCPASSQUANTITY")as"m0"from"DC_TIME""DC_TIME","DC_JOBCOLLECT""DCJOBCOLLECT"where"DCJOBCOLLECT"."JCCOLLECTTIME"="DCTIME"."TIMEID"and"DCTIME"."THEQUARTER"='1'and"DCTIME"."THEYEAR"='2004'groupby"DCTIME"."THEQUARTER","DCTIME"."THEYEAR"],515ms122?5時(shí)間比較（在Toad中執(zhí)行使用和未使用聚集表的sql語句比較執(zhí)行時(shí)間）select"DC_TIME"."THE_QUARTER"as"c0","DC_TIME"."THE_YEAR"as"c1",sum("DC_JOBCOLLECT"."JCPASSQUANTITY")as"m0"from"DC_TIME""DC_TIME","DC_JOBCOLLECT""DC_JOBCOLLECT"where"DC_JOBCOLLECT"."JCCOLLECTTIME"="DC_TIME"."TIME_ID"and"DC_TIME"."THE_QUARTER"='1'and"DC_TIME"."THE_YEAR"='2004'groupby"DC_TIME"."THE_QUARTER","DC_TIME"."THE_YEAR"時(shí)間:313msecsselectselect"AGG_3_QUARTER_DC_JOBCOLLECT"."THE_QUARTER"as"c0","AGG_3_QUARTER_DC_JOBCOLLECT"."THE_YEAR"as"c1","AGG_3_QUARTER_DC_JOBCOLLECT"."JCPASSQUANTITY"as"m0"from"AGG_3_QUARTER_DC_JOBCOLLECT""AGG_3_QUARTER_DC_JOBCOLLECT"where"AGG_3_QUARTER_DC_JOBCOLLECT"."THE_QUARTER"='1'and"AGG_3_QUARTER_DC_JOBCOLLECT"."THE_YEAR"='2004'時(shí)間:16msecs1.2.3只collapsed時(shí)間維到quarter（保留其它維的所有l(wèi)evel）目的：對時(shí)間維做到quarterlevel的聚集，對其它維做最細(xì)粒度的聚集。以快速實(shí)現(xiàn)在時(shí)間維上聚集到quarterlevel上，在其它維上可包含任意level的查詢語句。在數(shù)據(jù)庫中創(chuàng)建聚集表,并從事實(shí)表選擇數(shù)據(jù)插入到聚集表中創(chuàng)建聚集表createtableAGG_2_QUARTER_DC_JOBCOLLECT(JODNOJCDEVICECODEJCTEAMVARCHAR2(16)NOTNULL,VARCHAR2(10)NOTNULL,VARCHAR2(4)NOTNULL,MATCODEVARCHAR2(12)NOTNULL,THE_YEARVARCHAR2(4)NOTNULL,THE_QUARTERVARCHAR2(4)NOTNULL,JCPASSQUANTITYNUMBER(10)NOTNULL,JCREJECTQUANTITYNUMBER(10)NOTNULL,JCREWORKQUANTITYNUMBER(10)NOTNULL,FACT_COUNTINTEGERNOTNULL);插入數(shù)據(jù)到聚集表INSERTINTOAGG_2_QUARTER_DC_JOBCOLLECT(JODNO,JCDEVICECODE,JCTEAM,MATCODE,THE_YEAR,THE_QUARTER,JCPASSQUANTITYJCREJECTQUANTITYJCREWORKQUANTITYFACT_COUNT)SELECTBASE.JODNO,BASE.JCDEVICECODE,BASE.JCTEAM,BASE.MATCODE,DIM.THE_YEAR,DIM.THE_QUARTER,SUM(JCPASSQUANTITY)ASJCPASSQUANTITYSUM(JCREJECTQUANTITY)ASJCREJECTQUANTITY,SUM(JCREWORKQUANTITY)ASJCREWORKQUANTITY,COUNT(*)ASFACT_COUNTFROMDC_JOBCOLLECTBASE,DC_TIMEDIMWHEREBASE.JCCOLLECTTIME=DIM.TIME_IDGROUPBYBASE.JODNO,BASE.JCDEVICECODE,BASE.JCTEAM,BASE.MATCODE,DIM.THE_YEAR,DIM.THEQUARTER;1?2?3?2MDX查詢語句select{[Measures].[jcpassquantity]}ONCOLUMNS,Crossjoin(Hierarchize(Union(Crossjoin({[time].[alltime].[2004].[1]},{[Dwcno].[alljodworkcenter]}),Crossjoin({[time].[alltime].[2004].[1]},[Dwcno].[alljodworkcenter].Children))),{([EQ].[alleq],[pm].[allmat],[wt].[allworkteam])})ONROWSfrom[workcenter]查詢結(jié)果指標(biāo)timeDwcnoEQpmwt9jcpassquantity+1-alljodvjorkcenter^alleq<allworkteam12,017車輪生產(chǎn)線專日lleq<allworkteam8,163輪養(yǎng)生產(chǎn)線專日lleq<allworkteam3,854工模具加工踐^alleq^allmat^allworkteam外委生產(chǎn)蛭^alleq^allmat^allworkteam跟蹤sqlDEBUG[mondrian.rolap.RolapUtil]Segment.load:executingsql[select"FS_WORKCENTER"."WCNO"as"c0","AGG_2_QUARTER_DC_JOBCOLLECT"."THE_QUARTER"as"cl","AGG_2_QUARTER_DC_JOBCOLLECT"."THE_YEAR"as"c2",sum("AGG_2_QUARTER_DC_JOBCOLLECT"."JCPASSQUANTITY")as"mO"from"FS_WORKCENTER""FS_WORKCENTER","AGG_2_QUARTER_DC_JOBCOLLECT""AGG_2_QUARTER_DC_JOBCOLLECT"where"AGG_2_QUARTER_DC_JOBCOLLECT"."JODNO"="FS_WORKCENTER"."WCNO"and"AGG_2_QUARTER_DC_JOBCOLLECT"."THE_QUARTER"='1'and"AGG_2_QUARTER_DC_JOBCOLLECT"."THE_YEAR"='2004'groupby"FS_WORKCENTER"."WCNO","AGG_2_QUARTER_DC_JOBCOLLECT"."THE_QUARTER","AGG_2_QUARTER_DC_JOBCOLLECT"."THE_YEAR"],16ms若不設(shè)置聚集表，則查詢sql如下DEBUG[mondrian.rolap.RolapUtil]Segment.load:executingsql[select"FS_WORKCENTER"."WCNO"as"c0","DC_TIME"."THE_QUARTER"as"c1","DC_TIME"."THE_YEAR"as"c2",sum("DC_JOBCOLLECT"."JCPASSQUANTITY")as"m0"from"FS_WORKCENTER""FS_WORKCENTER","DC_JOBCOLLECT""DC_JOBCOLLECT","DC_TIME""DC_TIME"where"DC_JOBCOLLECT"."JODNO"="FS_WORKCENTER"."WCNO"and"DC_JOBCOLLECT"."JCCOLLECTTIME"="DC_TIME"."TIME_ID"and"DC_TIME"."THE_QUARTER"='1'and"DC_TIME"."THE_YEAR"='2004'groupby"FSWORKCENTER"."WCNO","DCTIME"."THEQUARTER","DCTIME"."THEYEAR"],344ms123?5時(shí)間比較（在Toad中執(zhí)行使用和未使用聚集表的sql語句比較執(zhí)行時(shí)間）select"FS_WORKCENTER"."WCNO"as"c0","DC_TIME"."THE_QUARTER"as"c1","DC_TIME"."THE_YEAR"as"c2",sum("DC_JOBCOLLECT"."JCPASSQUANTITY")as"m0"from"FS_WORKCENTER""FS_WORKCENTER","DC_JOBCOLLECT""DC_JOBCOLLECT","DC_TIME""DC_TIME"where"DC_JOBCOLLECT"."JODNO"="FS_WORKCENTER"."WCNO"and"DC_JOBCOLLECT"."JCCOLLECTTIME"="DC_TIME"."TIME_ID"and"DC_TIME"."THE_QUARTER"='1'and"DC_TIME"."THE_YEAR"='2004'groupby"FS_WORKCENTER"."WCNO","DC_TIME"."THE_QUARTER","DC_TIME"."THE_YEAR"時(shí)間：343msecsselect"FS_WORKCENTER"."WCNO"as"c0","AGG_2_QUARTER_DC_JOBCOLLECT"."THE_QUARTER"as

Cl",AGG_2_QUARTER_DC_J0BC0LLECT"."THE_YEAR"asc2",Cl",AGG_2_QUARTER_DC_J0BC0LLECT"."THE_YEAR"asc2",sum("AGG_2_QUARTER_DC_J0BC0LLECT"."JCPASSQUANTITY")as"mO"from"FS_WORKCENTER""FS_WORKCENTER","AGG_2_QUARTER_DC_JOBCOLLECT""AGG_2_QUARTER_DC_JOBCOLLECT"whereFS_WORKCENTER"."WCNO='1'andandFS_WORKCENTER"."WCNO='1'andand"AGG_2_QUARTER_DC_JOBCOLLECT"."THE_QUARTER""AGG_2_QUARTER_DC_JOBCOLLECT"."THE_YEAR"='2004'groupby"FS_WORKCENTER"."WCNO","AGG_2_QUARTER_DC_JOBCOLLECT"."THE_QUARTER","AGG_2_QUARTER_DC_JOBCOLLECT"."THE_YEAR"時(shí)間：33msecs1.2.4不必把事實(shí)表中的所有measure作為聚集表的measure目的：對所有維都實(shí)現(xiàn)最粗粒度的聚集，且只包含想要查詢的measure，在保證查詢的基礎(chǔ)上，使聚集表的體積最?。ㄔ诰哂邢嗤瑀ow時(shí)，通過減少column）。以快速實(shí)現(xiàn)包含所有維的默認(rèn)allmember和特定measure的查詢語句。在數(shù)據(jù)庫中創(chuàng)建聚集表,并從事實(shí)表選擇數(shù)據(jù)插入到聚集表中創(chuàng)建聚集表createtableAGG_4_DC_JOBCOLLECT(JCPASSQUANTITYNUMBER(10)NOTNULL,FACT_COUNTINTEGERNOTNULL);插入數(shù)據(jù)INSERTINTOAGG_4_DC_JOBCOLLECT(JCPASSQUANTITYFACT_COUNT)SELECTSUM(JCPASSQUANTITY)ASJCPASSQUANTITYCOUNT(*)ASFACT_COUNTFROMDCJOBCOLLECT?2MDX查詢語句select{[Measures].[jcpassquantity]}ONCOLUMNSfrom[workcenter]查詢結(jié)果指標(biāo)12,161指標(biāo)12,16跟蹤sqlselect"AGG_4_DC_J0BC0LLECT"."JCPASSQUANTITY"as"m0"from"AGG_4_DC_JOBCOLLECT""AGG4DCJOBCOLLECT"1.2.5當(dāng)查詢語句中包含［維］?［all成員］目的：測試當(dāng)查詢語句中包含某個(gè)維的all成員時(shí)，mondrian選擇從哪個(gè)聚集表中執(zhí)行查詢。?1MDX查詢語句select{[Measures].[jcpassquantity]}ONCOLUMNS,{([time].[alltime].[2004].[l],[Dwcno].[alljodworkcenter],[EQ].[alleq],[pm].[allmat],[wt].[allworkteam])}ONROWSfrom[workcenter]查詢結(jié)果指標(biāo)time>jcpassquantity+112,0跟蹤sqlDEBUG[mondrian.rolap.RolapUtil]Segment.load:executingsql[select"AGG_3_QUARTER_DC_JOBCOLLECT"."THE_QUARTER"as"cO","AGG_3_QUARTER_DC_JOBCOLLECT"."THE_YEAR"as"c1","AGG_3_QUARTER_DC_JOBCOLLECT"."JCPASSQUANTITY"as"m0"from"AGG_3_QUARTER_DC_JOBCOLLECT""AGG_3_QUARTER_DC_JOBCOLLECT"where"AGG_3_QUARTER_DC_JOBCOLLECT"."THE_QUARTER"='1'and"AGG3QUARTERDCJOBCOLLECT"."THEYEAR"='2004'],16ms不存在查詢語句具有相同粒度的聚集表目的：測試當(dāng)不存在與查詢語句具有相同粒度的聚集表時(shí)，mondrian選擇從什么樣的聚集表或者從事實(shí)表中進(jìn)行查詢。1?2?6?1MDX查詢語句select{[Measures].[jcpassquantity]}ONCOLUMNS,{[time].[alltime].[2004]}onrowsfrom[workcenter]查詢結(jié)果指標(biāo)time>jcpassquantity<200412,16跟蹤sqlDEBUG[mondrian.rolap.RolapUtil]Segment.load:executingsql[select"AGG_3_QUARTER_DC_JOBCOLLECT"."THE_YEAR"as"c0",sum("AGG_3_QUARTER_DC_JOBCOLLECT"."JCPASSQUANTITY")as"m0"from"AGG_3_QUARTER_DC_JOBCOLLECT""AGG_3_QUARTER_DC_JOBCOLLECT"where"AGG_3_QUARTER_DC_JOBCOLLECT"."THE_YEAR"='2004'groupby"AGG3QUARTERDCJOBCOLLECT"."THEYEAR"],0ms1.3設(shè)置AGGTABLE參數(shù)和查看SQL跟蹤1.3.1Mperties屬性值設(shè)置Mondiran的聯(lián)機(jī)資料，AggregateTables部分有如下參數(shù)說明PropertyTypeDefauItValueDescriptionmondrian.rolap.aggregates.UsebooleanfalseIfsettotrue,thenMondrianusesanyaggregatetablesthathavebeenread.ThesetablesarethenCandidatesforuseinfulfillingMDXqueries.Ifsettofalse,thennoaggregatetablerelatedactivitytakesplaceinMondrian.mondrian.rolap.aggregates.ReadbooleanfalseIfsettotrue,thenMondrianreadsthedatabaseschemaandrecognizesaggregatetables.ThesetablesarethencandidatesforuseinfulfillingMDXqueries.Ifsettofalse,thenaggregatetablewillnotbereadfromthedatabase.Ofcourse,afteraggregatetableshavebeenread,theyareread,sosettingthispropertyfalseafterstartingwiththepropertybeingtrue,hasnoeffect.Mondrianwillnotactuallyusetheaggregatetablesunlessthemondrian.rolap.aggregates.Usepropertyissettotrue.據(jù)此，在Mperties中添加mondrian.rolap.aggregates.Use=truemondrian.rolap.aggregates.Read=trueMperties屬性文件的位置Mondiran的聯(lián)機(jī)資料，COnf；9廿罰0門Guide部分PropertiesMondrianhasapropertiesfiletoallowyoutoconfigurehowitexecutes.TpertiesfileisloadedwhentheexecutingMondrianJARdetectsitneedsproperties,butcanalsobedoneexplicitlyinyourcode.Itlooksinseveralplaces,inthefollowingorder:InthedirectorywhereyoustartedyourJVM(CurrentworkingdirectoryforJVMprocess,java.exeonWin32,javaon*nix).Ifthereisn'pertiesundercurrentworkingdirectoryofJVMprocess,ClassMondrianProperties'pertiesinallofitsclasspaths.Spertiesunder/WEB-INF/classeswhenyoupackMondrianintoaJavawebapplication.Thedemonstrationwebapplicationshavethisconfiguration.因此把perties文件放到mondrian.war\WEB-INF\classes\目錄下。2mondrian選擇聚集表的原則Mondiran的聯(lián)機(jī)資料，AggregateTables中7.1ChoosingbetweenaggregatetablesIfmorethanoneaggregatetablematchesaparticularquery