sap bw itview qs

8/9/2019 sap bw itview qs

1/12

1) Please describe your experience with BEx (Business Explorer)A) Rate your level of experience with BEx and the rationalefor you’re self-ratinB) !ow "any #ueries have you developed$ %&) !ow "any reports have you written$') !ow "any wor boo s have you developed$E) Experience with u"p tar ets (*+,P use u"p tar et).) 'escribe experience with B/-co"patible E,+ tools (e0 0 Ascential)

) 'escribe your experience with 2rd party report tools (&rystal 'ecisions Business *b ects a plus)

2) 'escribe your experience with the desi n and i"ple"entation of standard 3 custo" 4nfo&ubes010 !ow "any 4nfo&ubes have you i"ple"ented fro" start to end by yourself (not with a tea")$0 *f these &ubes how "any characteristics (includin attributes) did the lar est one have020 !ow "uch custo"i5ation was done on the 4nfo&ubes have you i"ple"ented$

6) 'escribe your experience with re#uire"ents definition7 atherin 0

8) /hat experience have you had creatin .unctional and ,echnical specifications$

9) 'escribe any testin experience you have%

:) 'escribe your experience with B/ extractors

10 !ow "any standard B/ extractors have you i"ple"ented$0 !ow "any custo" B/ extractors have you i"ple"ented$

;) 'escribe how you have used Excel as a co"pli"ent to BExA) 'escribe your level of expertise and the rationale for your self-ratin (experience with "acros pivot tables andfor"attin )B)

AP ?ethodolo y0

11) 4dentify >AP functional areas (>E? &R? etc0) you have experience in0 'escribe that experience0

1 ) /hat is partitionin and what are the benefits of partitionin in an 4nfo&ube$A) Partitionin is the "ethod of dividin a table (either colu"n wise or row wise) based on the fields available which wouldenable a #uic reference for the intended values of the fields in the table0 By partitionin an infocube the reportinperfor"ance is enhanced because it is easier to search in s"aller tables0 Also table "aintenance beco"es easier0

12) /hat does Rollup do$A) Rollup creates a re ates in an infocube whenever new data is loaded0

16) /hat are the inputs for an infoset$A) ,he inputs for an infoset are *'> ob ects and 4nfo*b ects (with "aster data or text)0

18) /hat internally happens when B/ ob ects li e 4nfo *b ect 4nfo &ube or *'> are created and activated$A) /hen an 4nfo*b ect 4nfo&ube or *'> ob ect is created B/ "aintains a saved version of that ob ect but does not "a eit available for use0 *nce the ob ect is activated B/ creates an active version that is available for use0

19) /hat is the "axi"u" nu"ber of ey fields that you can have in an *'> ob ect$

A) 190

1:) /hat is the specific advanta e of +* extraction over +4> extraction$A) ,he load perfor"ance of +* extraction is better than that of +4>0 4n +4> two tables are used for delta "ana e"ent thatis cu"berso"e0 4n +* only one delta #ueue is used for delta "ana e"ent0

1;) /hat is the i"portance of =RE@ 4'$A) 4t is the 4nfo*b ect for Re#uest id0 *RE@ 4' enables B/ to distin uish between different data records0

1


2/12

=) /hat is the i"portance of the table R*4'*&PR?>$A) 4t is an 4'*& para"eter source syste"0 ,his table contains the details of the data transfer li e the source syste" of thedata data pac et si5e "axi"u" nu"ber of lines in a data pac et etc0 ,he data pac et si5e can be chan ed throu h thecontrol para"eters option on >B4/ i0e0 the contents of this table can be chan ed0

1) /hat is the i"portance of Cstart routineC in update rules$

A) A >tart routine is a user exit that can be executed before the update rule starts to allow "ore co"plex co"putations fora ey fi ure or a characteristic0 ,he start routine has no return value0 4ts purpose is to execute preli"inary calculations andto store the" in a lobal data structure0 ou can access this structure or table in the other routines0

) /hen is 4'*& data transfer used$A) 4'*&s are used for co""unication between lo ical syste"s li e >AP R72 R7 and non->AP syste"s usin A+E and forco""unication between an >AP R72 syste" and a non->AP syste"0 4n B/ an 4'*& is a data container for data exchan ebetween >AP syste"s or between >AP syste"s and external syste"s based on an E'4 interface0 4'*&s support li"ited filesi5e of 1=== bytes0 >o 4'*&s are not used when loadin data into P>A since data there is "ore detailed0 4t is used whenthe file si5e is lesser than 1=== bytes0

2) /hat is partitionin characteristic in &*-PA used for$A) .or easier parallel search and load of data0

6) /hat is the advanta e of B/ reportin on &*-PA data co"pared with directly runnin the #ueries on &*-PA$

A) B/ has a better perfor"ance advanta e over reportin in R720 .or a hu e a"ount of data the R72 reportin tool is at aserious disadvanta e because R72 is "odeled as an *+,P syste" and is ood for transaction processin rather thananalytical processin 0

8) /hat is the function of B/ statistics cube$A) B/ statistics cube contains the data related to the reportin perfor"ance and the data loads of all the 4nfo&ubes in theB/ syste"0

9) /hen an *'> is in CoverwriteC "ode does uploadin the sa"e data a ain and a ain create new entries in the chan elo each ti"e data is uploaded$A) Do0

:) /hat is the function of Cselective deletionC tab in the "ana e- contents of an infocube$A) 4t allows us to select a particular value of a particular field and delete its contents0

;) /hen we collapse an infocube is the consolidated data stored in the sa"e infocube or is it stored in the new infocube$A) 'ata is stored in the sa"e cube0

AP B/ syste" into external data "arts analyticalapplications and other applications0 /ith this you can ensure controlled distribution usin several syste"s0 ,he centralob ect for the export of data is the 4nfospo e0 sin this you can define the ob ect fro" which the data co"es and intowhich tar et it is transferred0 ,hrou h the open hub service >AP B/ beco"es a hub of an enterprise data warehouse0 ,hedistribution of data beco"es clear throu h central "onitorin fro" the distribution status in the B/ syste"0


3/12

26) /hat is the function of CreconstructionC tab in an infocube$A) 4t reconstructs the deleted re#uests fro" the infocube0 4f a re#uest has been deleted and later so"eone wants the datarecords of that re#uest to be added to the infocube one can use the reconstruction tab to add those records0 4t oes to theP>A and brin s the data to the infocube0

28) /hat are secondary indexes with respect to 4nfo&ubes$A) 4ndex created in addition to the pri"ary index of the infocube0 /hen you activate a table in the ABAP 'ictionary an

index is created on the pri"ary ey fields of the table0 .urther indexes created for the table are called secondary indexes0

29) /hat is 'B connect and where is it used$A) 'B connect is database connectin piece of pro ra"0 4t is used in connectin third party tools with B/ for reportinpurpose0

2:) &an we extract hierarchies fro" R72 for &*-PA$A) Do /e cannot FD* hierarchies in &*7PA 0

2;) Explain Gfield na"e for partitionin ’ in &*-PAA) ,he &*7PA partitionin is used to decrease pac a e si5e (e % co"pany code)

2,>&!E?A we can navi ate the tables0

6 ) 'ifferences between table view and infoset #ueryA) An 4nfo>et @uery is a #uery usin flat tables0

62) !ow to load data fro" one 4nfo&ube to another 4nfo&ube $A) ,hro 'ata?arts data can be loaded fro" one 4nfo&ube to another 4nfo&ube0

66) /hat is the si nificance of setup tables in +* extractions $A) 4t adds the >election &riteria to the +* extraction0

68) 'ifference between extract structure and datasourceA) 4n 'atasource we define the data fro" diff source sys where as in extract struct it contains the replicated data ofdatasource n where in we can define extract rules n transfer rulesB) Extract >tructure is a record layout of 4nfo*b ects0&)Extract >tructure is created on >AP B/ syste"0

69) /hat happens internally when 'elta is 4nitiali5ed

6:) /hat is referential inte rity "echanis" $A) Referential inte rity is the property that uarantees that values fro" one colu"n depend on values fro" anothercolu"n0,his property is enforced throu h inte rity constraints06;) /hat i s activation of extract structure in +* $

6


4/12

89) /hat are the "ethods available to debu the load failures $

8:) /hat is data"inin concept $A) Process of findin hidden patterns and relationships in the data0B) /ith typical dataanalysis re#uire"ents fulfilled by data warehouses business users have an idea of what infor"ation they want to see0&)>o"e opportunities e"body data discovery re#uire"ents where the business user wants to correlate sets of data todeter"ine ano"alies or patterns in the data0

8;) /hat is scorin $8* R&E$A) Da"e of the 4nfo>ource

92) /hat is 4K,K.4E+'>$A) +ist of the transfer structure fields0 *nly these fields are actually filled in the data table and canbe sensibly addressed in the pro ra"0

96) /hat is &K,K'A,A$A) ,able with the data received fro" the AP4 in the for"at of source structure entered in tableR*4> (field R*4>->,R &, RE)0

98) /hat is 4K P'?*'E$A) ,ransfer "ode as re#uested in the >cheduler of the Business 4nfor"ation /arehouse0 Dotnor"ally re#uired0

99) /hat is 4K,K>E+E&,$A) ,able with the selection criteria stored in the >cheduler of the >AP-Business 4nfor"ation/arehouse0 ,his is not nor"ally re#uired0

9:) /hat is >eriali5ed H2 pdate$A) ,his is the nor"al update "ethod0 !ere docu"ent data is collected in the order itwas created and transferred into the B/ as a batch ob0 ,he transfer se#uence is not the sa"e as the order in which thedata was created in all scenarios0

9;) /hat is 'irect 'elta$A) 4n this "ethod extraction data is transferred directly fro" docu"ent postin s into the B/delta #ueue0 ,he transfer se#uence is the sa"e as the order in which the data was created0

9 is "a orly used as a sta in area0

:6) /hat is the benefit of usin B/ reportin over >AP Reportin $A) Perfor"anceB) 'ata Analysis&) Better front endreportin 0') Ability to pull the data fro" >AP and Don - >AP sources0

:8) 'ifferences between star and extended star sche"a $A) >tar sche"a% *nly characteristics of the di"ension tables canbe used to access facts0 Do structured drill downs can be created0 >upport for "any lan ua es is difficult0B) Extendedstarsche"a% ?aster data tables and their associated fields(attributes)0 External hierarchy tables for structured access todata0 ,ext tables with extensive "ultilin ual descriptions0

:9) /hat are the new features of >AP B/ 2=b$

::) /hat are the new features of the R2 Plu in P4 == K10


5/12

:;) /hat are the "a or errors in B/ and R2 pertainin to B/$A) Errors in loadin data (*'> loadin &ube loadin deltaloadin etc)B) Errors in activatin B/ or other ob ects0&) 4ssues in delta loadin s

:tart routine is used at updaterules and return table is used to return the Halue followin the execution of start routine

;1) /hat is the difference between start routine and update routine when how and why are they called$A) >tart routinecan be used to access 4D.*PA&LAIE update routines cant0

; ) /hat are the different Don - R72 syste"s that B/ supports$

;2) 4n a eneral pro ect how "any 4nfo&ubes 4nfo*b ects 4nfo>ources ?ulti-Providers can you expect$A) 4t depends onsi5e of the pro ect inturn their business oal0'iffers fro" pro ect to pro ect0

;6) /hat does a ? table si nify$A) ?aster table0

;8) /hat does a . table si nify$

A) .act table

;9) /hat is data warehousin $A) 'ata /arehousin is a concept in which the data is stored and analysis is perfor"ed over it0

;:) /hat is process chain and how you used it$A) Process chains are tool available in B/ for Auto"ation of upload of "aster data and transaction data while ta in careof dependency between each processes0B) 4n one of our scenario we wanted to upload wholesale price infoob ect which will have wholesale price for all the"aterial0 ,hen we wanted to load transaction data0 /hile loadin transaction data to populate wholesale price there was aloo up in the update rule on this 4nfo*b ect "asterdata table0 ,his dependency of first uploadin "asterdata and thenuploadin transaction data was done throu h the process chain0

;;) /hat are Re"otecubes and how you accessed and used it in your pro ect$A) A Re"ote&ube is an 4nfo&ube whose transaction data is not "ana ed in the Business 4nfor"ation /arehouse butexternally0 *nly the structure of the Re"ote&ube is defined in B/0 ,he data is read for reportin usin a BAP4 fro" anothersyste"0B) sin a Re"ote&ube you can carry out reportin usin data in external syste"s without havin to physicallystore transaction data in B/0 ou can for exa"ple include an external syste" fro" "ar et data providers usin aRe"ote&ube0

;AP+R>APK== to populate ?aster 'ata for extended fields and EM4,K>AP+R>APK==1 for transaction data to extractfro" R72 to B/

*

et is special ind of 4nfoProvider0 4t is used to report by Joinin *'> *b ects and 4nfo*b ects0 4nfo>ets have beenused in the Business 4nfor"ation /arehouse for 4nfo*b ects ("aster data) *'> ob ects and oins for these ob ects0 ,he4nfo>et @uery can be used to carry out tabular (flat) Reportin on these 4nfo>ets0

< ) /hat is the purpose of a re ates$A) A re ates are li e indices to database tables0 ,hey are rolled up data on few characteristics on which report is runfre#uently0 ,hey are created for perfor"ance i"prove"ent of reportin 0 4f a report is used very extensively and itsperfor"ance is slow then we can create a re ate on the characteristics used in the report so that when the report runs*+AP processer selects data fro" a re ate instead of cube0


6/12

A) /e had collected data fro" the user and created !+'(!i h level 'esi n docu"ent) and we analy5ed to find the sourcefor the data0 ,hen data"odels were done indicatin dataflow loo ups0 /hile desi nin the data"odel considerations wereiven to use existin ob ects(li e *'> and &ube) not storin redundant data volu"e of data Batch dependency0

we can have only si"ple reports0 4f we #uery based on

Don ey fields('ata fields) in *'> then report runs slower0 But in *'> we can overwrite non ey fields0 But we can notoverwrite in &ube0 ,his is one of the disadvanta e in &ube0

4's0 >4's are Auto enerated nu"ber assi ned to each characteristic value whenthey are uploaded0 >earch on Du"eric character is always faster than Alpha characters and hence >4's are assi ned foreach characteristic values0

1==) /hat is ,able partitionin $ /hat are Return ,ables$A) 4f we have =&al"onth or =.iscper as ti"e characteristic then we can partition the fact table physically0 ,able portioninhas to be supported by the 'atabase0 *racle 4nfor"ix 4B? 'B 72AP 'B ?icrosoft >@+>erver 4B? 'B 76== does not support table portionin 0 ,able partitionin helps to run the report faster as data is stored inthe relevant partition0B) 4n pdate rule routine 4f we want to return "ultiple records instead of sin le value we can use this return table0

1=1) /hat is the t-code for @uery ?onitor$A) R>R,

1= ) Apart fro" R72 which le acy db you used for extraction $A) /e had le acy syste" called &A?0 &A? syste" had *pen order infor"ation which was full load every day to *?>chedule line *'>0 &A? syste" was connected to R2 throu h 'B connect0

1=2) /hat are the three *'> *b ects table explain$A) *'> *b ect has three tables called Dew Active and &han e lo 0 As soon as new data co"es into *'> that is stored in*'>0 /hen it is activated the new data is written to Active table0 &han e is written in the chan e lo 0

1=6) &an you explain about >tart routines how you used in your pro ect ive "e an exa"ple$A) 4n start routine is used for "ass processin of records0 4n start routine all the records of data pac a e is available forprocessin 0 >o we can process all these records to ether in start routine0 4n one of scenario we wanted to apply si5e N to

the forecast data0 .or exa"ple if "aterial ?1 is forecasted to say 1== nos in ?ay0 ,hen after applyin si5e N(>"all =N?ediu" 6=N +ar e =N Extra +ar e =N) we wanted to have 6 records a ainst one sin le record that is co"in in theinfo pac a e0 ,his is achieved in start routine0

1=8) 4n update rules for an infocube we can specify separate update rules for characteristics of each of the ey fi ures0 4nwhich situations is the above used$A) ,o be discussed(,B')0

1=9) *ther than B/ what are the other E,+ tools used for >AP R72 in industry$A) 4nfor"atica A&,A &*ID*> Business *b ects are other E,+ tools0


7/12

1=:) 'oes any other ERP software use B/ for data warehousin 0A) D*01=;) /hat is the i"portance of hierarchies$A) *ne can display the ele"ents of characteristics in hierarchy for" and evaluate #uery data for the individual hierarchylevels in the Business Explorer (in /eb applications or in the BEx Analy5er)0

1= uses *RE&*R'?*'E info ob ect for delta load0 *RE&*R'?*'E has values asM ' R0 4n delta data load M "eans rows to be s ipped ' 3 R for delete and Re"ove of rows0

11=) /hat is operatin concern in &*-PA$A) An or ani5ational structure that co"bines controllin areas to ether in the sa"e way as controllin areas roupco"panies to ether0

111) 'oes all the characteristics present in *'> are ey fields0A) Do0 An *'> ob ect contains ey fields (for exa"ple docu"ent nu"ber7ite") and data fields that can also containcharacter fields (for exa"ple order status custo"er)0

11 ) /hat is the use BAP4 A+E$A) BAP4 A+E O set of pro ra"s which will Extract data fro" data sources0 B/ connects >AP syste"s(R72 or B/) and flatfiles via A+E0 B/ connects with non >AP syste"s via BAP40

112) /hat is the i"portance of G&o"poundin ’ of infoob ects$A) A &o"pound attribute differentiates a characteristic to "a e the characteristic uni#uely identifiable0 .or exa"ple in aPlant there can be so"e si"ilar products "anufactured0 (Plant A-- >oap Paste +otion plant B-->oap paste +otion) 4n thiscase Plant A and Plant B should be "ade uni#ue0 >o the characteristics can be co"pounded to "a e the" uni#ue0

116) Are there any li"itations for BEx analy5er$A) ,B'

118) !ow does BEx analy5er connect to B/$A) Bex Analy5er i s connected with *+AP Processor0 *+E 'B &onnectivity "a es Bex Analy5er connects with B4/0

119) /hat is field partitionin in &*-PA$A) 4nternally allocates space in database0 4f needed table resides in one or few partitions then only these partitions will beselected and exa"ined by >@+ state"ent therby si nificantly reducin 47* volu"e0

11:) /here to chec the lo for warnin "essa es appearin in activation of transfer rules$A) 4f transfer rules are not defined for 4nfo ob ects then traffic li hts will not be reen0

11;) /hat are the advanta es of reportin on an infocube to that of reportin on an *'>$A) @uery perfor"ance will be ood with 4nfocube0 4nfocube has "ultidi"ensional "odel where as *'> is a flat table0A re ates and ?ulti provider can be built upon 4nfocube which will enhance the @uery perfor"ance0 A re ates and"utiproviders cannot be built on *'>0

11$A) *'> has three database tables0 Dew ,able Active ,able and &han e +o ,able0 4nitially new data are loaded and theirtraces are ept in &han e lo table0 /hen another set of data co"es it actually co"pares with chan e lo and transfers

the data (delta data) into active table and also notes in &han e lo 0 Everyti"e the tables are co"pared and data is writteninto the tar ets0

1 1) /hat is ti"e dependent "aster data$A) ,i"e dependant "aster data are one which eeps chan in accordin to ti"e0 .or exa"ple% Assu"e a >cenario >alesperson A wor s in East Qone till (Jan 2=th ==6) and then "oves to Dorth Qone fro" Jan21 st ==60,hus the "aster datawith re ard to >ales person A should be chan ed to differnt 5one based on a ti"e

1 ) &an we load transaction data into infocube without loadin the "aster data first$A) yes0


8/12

1 2) /hat is difference between Gsavin ’ and Gactivatin ’$A) 4n B4/ >avin -- actually saves the defined structure and retrieves whenever re#uired0B) Activatin --- 4t saves andenerates re#uired tables and structures0

1 6) /hy do we use only one client in B/$

1 8) /hat is ti"e dependent "aster data$

A) ,i"e dependant "aster data are one which eeps chan in accordin to ti"e0 .or exa"ple% Assu"e a >cenario >alesperson A wor s in East Qone till (Jan 2=th ==6) and then "oves to Dorth Qone fro" Jan21st ==60 ,hus the "aster datawith re ard to >ales person A should be chan ed to different 5one based on a ti"e

1 9) /hat are the advanta es of a re ates$A) A re ates "a e it possible to access 4nfo&ube data #uic ly in Reportin 0 A re ates serve in a si"ilar way todatabase indexes to i"prove perfor"ance0

1 :) 4n which situations we cannot use a re ates$A) if data provider is *'>0

1 ;) A re ates are reco""ended in the followin casesA) ,he execution and navi ation of #uery data leads to delays with a roup of #ueries0B) ou want to speed up theexecution and navi ation of a specific #uery0&) ou often use attributes in #ueries0') ou want to speed up reportin withcharacteristic hierarchies by a re atin specific hierarchy levels0

1 ources after full update0 4t initiali5es the delta pdate "echanis" for thatdatasource0

12=) /hat is difference between delta and pseudo delta$A) >o"e data tar et and "odule has delta pdate feature0 ,hose can be used for delta pdate of data0 >ay *'> &*PAare delta capable0 data can be expected sta e wise0 After first accu"ulation of data B4/ expects the data in delta wise forthese data tar et0 /hen the other data tar et do not have these feature (delta update) they can be "ade delta capableusin *'> as data tar et0

121) /hat are the ,hird Dor"al .or" and its co"parison with >tar >che"a$A) ,hird nor"al for" is nor"ali5ed for" of storin data in a relational database0 4t eli"inates functional dependencies onnon- ey fields by puttin the" in a separate table0 At this sta e all non- ey fields are dependent on the ey the wholeey and nothin but the ey0B) >tar sche"a is a denor"ali5ed for" of storin data which paves the path for storin datain a "ulti-di"ensional "odel0

12 ) /hat is A>AP "ethodolo yA) A>AP is a standard "ethodolo y for efficiently i"ple"entin and continually opti"i5in the >AP software0 A>APsupports the i"ple"entation of the R72 >yste" and of "y>AP0co" &o"ponents and can also be used for up radepro ects0 4t provides a wide ran e of tools that helps in all sta es of i"ple"entation pro ect - fro" pro ect plannin to thecontinual i"prove"ent of the >AP >yste"0 ,he two ey tools in A>AP are% ,he 4"ple"entation Assistant which containsthe A>AP Road"ap and provides a structured fra"ewor for your i"ple"entation opti"i5ation or up rade pro ect0 ,he@uestion 3 Answer database (@3Adb) which allows you to set your pro ect scope and enerate your Business Blueprintusin the >AP Reference >tructure as a basis0

122) >i nificance of infoset0A) 4nfoset describes data sources that are defined as a rule as oins of *'> ob ects or 4nfo *b ects0 An 4nfoset is ase"antic view of data sources and is not a physical data tar et in itself0 *ne can define reports in the BEx @uery desi ner

usin activated info sets0

126) 'ifferences between "ulticube and re"ote cube0A) A ?ulticube is a type of 4nfo Provider that co"bines data fro" a nu"ber of 4nfo Providers and "a es the" available asa whole to reportin 0B) A Re"ote &ube is an 4nfo&ube whose transaction data is not "ana ed in the Business 4nfor"ation/arehouse but externally0 *nly the structure of the Re"ote &ube is defined in B/0 ,he data is read for reportin usin aBAP4 fro" another syste"0

128) +ife period of data in F&han e +o of an *'>0A) ,he data of &han e +o can be scheduled to be deleted periodically0 sually the 'ata is re"oved after it has beenupdated into the data tar ets0


9/12

129) 'rilldown "ethod of 4nfocube to *'>0A) A "ulti provider can be desi ned to include the *'> and the 4nfocube in #uestion0 ,his ives a chance to drilldown fro"4nfocube to the *'>0

12:) /hat are Finbound *'> and Fconsistent *'> $A) 4n an 4nbound *'> ob ect the data is saved in the sa"e for" as they are when delivered fro" the source syste"0 ,his

*'> type can be used to report the ori inal data as it co"es fro" the source syste"0B) 4n a &onsistent *'> ob ect datais stored in ranular for" and consolidated0 ,his consolidated data on a docu"ent level creates the basis for furtherprocessin in B/0

12;) +ife period of data in P>A0A) 'ata in P>A is deleted when one feels that there is no need for any use of it in future0 ,here i s a trade off betweenwasta e of space and usa e as a bac up for data in the source syste"0

12 ob ectdata is stored in different versions (active delta "odified) whereas a transactional *'> ob ect contains the data in asin le version0 ,herefore data is stored in precisely the sa"e for" in which it was written to the transactional *'> ob ectby the application0

162) Are >4's static or dyna"ic$A) >4's are static0

166) 4s data in 4nfocube editable$A) Do0

168) /hat are data-"arts$A) A data "art is al so nown as a local data warehouse0 4t is an i"ple"entation of a data warehouse with a restrictedscope of content with support for analytical processin and servin a sin le depart"ent part of an or ani5ation or aparticular data analysis proble" do"ain0

169) /hich one is "ore denor"ali5ed *'> or 4nfocube$A) 4nfocube is "ore nor"ali5ed than *'>016:) 4s &*-PA delta capable $A) es &*-PA is delta capable0

16;) /hat is Freplication of data source process $A) Replication of data source enables the extract structure fro" the source syste" to be replicated in the tar et syste"0

16 as well $A) Because *'> is "eant to store a detailed docu"ent for #uic perusal and help "a e short-ter" decisions0

181) /hy do we need separate update rules for characteristics on each ey fi ure$A) 4t is dependent on the Business re#uire"ent0

18 ) se of !ierarchies0A) Efficient reportin is one of the tar ets of usin hierarchies0 Easy drilldown paths can be built usin hierarchies0


10/12

182) /hat is Referential 4nte rity $A) A feature provided by relational database "ana e"ent syste"s (R'B?>Cs) that prevents users or applications fro"enterin inconsistent data0 .or exa"ple suppose ,able B has a forei n ey that points to a field in ,able A0 Referentialinte rity would prevent you fro" addin a record to ,able B that cannot be lin ed to ,able A0 4n addition the referentialinte rity rules "i ht also specify that whenever you delete a record fro" ,able A any records in ,able B that are lin ed tothe deleted record will also be deleted0 ,his is called cascadin delete0 .inally the referential inte rity rules could specifythat whenever you "odify the value of a lin ed field in ,able A all records in ,able B that are lin ed to it will also be

"odified accordin ly0 ,his is called cascadin update0

186) /hat is a ,ransactional &ube and when is it preferred$A) ,ransactional 4nfo&ubes differ fro" Basic 4nfo&ubes in their ability to support parallel write accesses0 Basic 4nfo&ubesare technically opti"i5ed for read accesses to the detri"ent of write accesses0 ,ransactional cubes are desi ned to "eetthe de"ands of >E? where "ultiple users write si"ultaneously into a cube and data is read as soon as possible0

188) /hen is the data in &han e +o table of *'> deleted0A) 'eletin data fro" the chan e lo for an *'> ob ect i s reco""ended if several re#uests which are no lon er re#uiredfor the delta update and also are no lon er used for an initiali5ation fro" the chan e lo have already been loaded intothe *'> ob ect0 4f a delta initiali5ation for the update exists in connected data tar ets the re#uests have to be updatedfirst before the respective data can be deleted in the chan e lo 0

189) *n what occasions do we have different update rules for each of the Ley .i ures in an 4nfo &ube and how would databe stored in such cases0

A) 4f we want to ive different values to characteristics dependin on each of the ey fi ure values we have differentupdate rules0 >ay we have two eyfi ures cost and profit if we have a entry for account type dependin on each ofeyfi ure we can classfiy account as hi h cost low cost or hi h profit or low profit0 4f we have seperate update rules foreach of the ey .i ures there can be "ultiple rows in the infocube correspondin to each row in the transaction data0

18:) /hen are !ierarchies used in an info ob ect and how do they differ fro" the hierarchies available in BEx while#ueryin 0A) !ierarchies are used for "odelin hierarchical structures0 !ierarchies defined in info ob ects should be loaded li e"aster data whereas it is needed creatin hierarchies in BEx while #ueryin 0 .urther in BEx we have the flexibility ofexchan in the nodes and leaves0

18;) /hat inds of data fields are used in +ine 4te"s ,ransactional .i ures and &ost of >ales +ed er$A) &hec the respective tables in R720

18 sta e and in what cases0A) ?ulti-layered structure in *'> sta e is used to consolidate data fro" different data sources0

192) !ow is data extracted fro" syste"s other than R72 and .lat files$A) 'ata is extracted fro" syste"s other than R72 and flat files usin sta in BAP4Cs0

196) /hen do ,R.& and i'*& errors occur$A) An inter"ediate docu"ent (4'oc) is a container for exchan in data between R72 R7 and non->AP syste"s0 4'ocs aresent in the co""unication layer by transactional Re"ote .unction &all (tR.&) or by other file interfaces (for exa"ple E'4)0


11/12

tR.& uarantees that the data is transferred once only0 /as not able to find out when the errors occur0

198) *n what occasions do the ey fi ures beco"e attributes of characteristics$A) /hen we want to display that particular ey fi ure as display attribute in the report0 Ley fi ures can only be "ade adisplay attribute of infoob ects0 >uppose we are reportin on perfor"ance of each of sales person we can declare salary of the sales person as an attribute0 .urther ey fi ures li e net price (price per unit #uantiy or price per ite") used as anattribute of product can be used to calculate ey fi ures li e total price ( by "ultiplyin net price with #uantity usin

for"ulas)0

199) /hy is there a restriction of 19 'i" tables in an 4nfo &ube and 19 ey fields in an *'>0

19:) *n what factors does the loadin ti"e depend on$A) +oadin ti"e depends on the wor load both on the B/ side and source syste" side0 4t "i ht also depend upon thenetwor connectivity0

19;) !ow lon does it ta e to load a "illion records into an info cube fro" an R72 syste"$A) 'ependin on wor load on B/ side and source syste" side loadin ti"e varies0 ,ypically it ta es half an hour to load a"illion records0

19AP syste"s li e .lat files0A) 4t "i ht not be the sa"e it depends on the extraction pro ra"s used on the source syste" side0

1:=) &an you tell "e about a situation when you i"ple"ented a Re"ote &ube0A) Re"ote cube is used when we li e to report on transactional data0 4n a re"ote cube data is not stored on B/ side04deally used when detailed data is re#uired and we want to bypass loadin of data into B/0

1:1) /hat is "y>AP0co"$A) >AP solution to inte rate all relevant business processes on the 4nternet0 "y>AP0co" inte rates business processes in>AP and non->AP syste"s sea"lessly and provides a co"plete business environ"ent for electronic co""erce0

1: ) !ow is B/ superior to other data warehousin tools (if it is superior)$A) >AP B/ provides ood co"patibility with other >AP products0

1:2) &an we ust load the transaction data without loadin the "aster data fro" a source syste" when we are sure we arenot oin to #uery on the "aster data0A) es you can0

1:6) /hat is operatin concern and partitionin in &*-PA0A) *peratin concern is set of characteristics based on which we want to analy5e the perfor"ance of co"pany0 Partitioninis dividin the data into different datasets dependin on a certain characteristics0 Partitionin enables parallel access ofdata0

1:8) /hat is the difference between value fields and ey fi ures in &*-PA0A) Halue fields co"prises of data which &*-PA ets fro" various "odules in R720 /hereas ey fi ures a re derived fro"these value fields0

1:9) !ow is the perfor"ance of an info cube "easured$A) 4nfocube perfor"ance can be "easured based upon #uery response ti"e0

1::) /hat factors are used in "easurin the perfor"ance of a #uery$A) @uery response ti"e is used for "easurin the perfor"ance of a #uery0

1:;) /hat is process chain and how you used it$A) /e have used process chains to auto"ate the delta loadin process0 *nce you are finished with your desi n and testinyou can auto"ate the processes listed in R>P&0 4 have a real ti"e exa"ple in the attach"ent0

1:


12/12

1;1) /hat is the t-code for eneric extractor$A) R>*

1; ) /hat is infoset #uery$A) 4nfo>et is an 4nfo Provider which does not store data its only a view and needs to be built as a oin0 4n treasury wehave built the currency exchan e report0 ,his report is not used often and so its stored in an *'>0 >o we built an 4nfo>et

to et data fro" another ob ect and built the report0 *n an *'> once you say its reportable and start runnin a #uery itsno lon er a flat table but follows a star sche"a and reportin beco"es slow

1;2) /hat is the purpose of a re ates$A) ,hey are used to store fre#uently reportin data0 *nce you fill in an a re ate and activate Bex chec s for a re atesbefore runnin a #uery and brin s the data "uch faster0 >o basically #uery perfor"ance i"proves a lot0

1;6) !ow you did 'ata "odelin in your pro ect$ ExplainA) 4nitially we study the business process of client li e what ind of data is flowin in the syste" the volu"e chan esta in place in it the analysis done on the data by users what are they expectin in the future how can we use the B/functionality0 +ater we have "eetin s with business analyst and propose the data "odel based on the client0 +ater we ivea proof of concept de"o wherein we de"o how are we oin to build a B/ data warehouse for their syste"0 *nce you etan approval start re#uire"ent atherin s and buildin your "odel and testin follows in @A

1;8) As you said you have wor ed on &ubes and *'> /hich one is better suited for reportin $Expalin and what are the

drawbac s n benefits of each oneA) 'ependin on what you want to report we store the data in &ube7*'>0 Ienerally B/ is used to store hi h volu"es ofdata and faster reportin wherein 4nfo&ube is used as it stores nor"ali5ed data0 /e store "aster data in other tables andtransaction data which are basically nu"bers are stored in cube0 >o basically the property of indexin wor s here and thereportin is fast as we have only nu"eric in a cube0B) /hen you load "aster data first the >4's are created for that data0/hen you load the transaction data it loo s for the "aster data >4's and ets lin ed usin '4?s0 ou have this in a cube0>o your reportin is oin to be fast as both of the" are nu"bers0&) 4n an *'> we store data which is of "ore detailutili5in its structure of flat file 0 reportin on this will be slow because of the reason in ans 80

1;9) /hat are the different cubes you wor ed in .4$

1;:) /hat is deltaupload$/hat is the use of deltaupload$'ata that has been chan ed or added is extractor or full data isextractor$A) ,o load real ti"e data and "a e accurate decisions we use delta upload0

1;;) /hat are hierarchies$Explain how you used in your pro ect$

1;

sap bw itview qs

Documents