In the bw processing transfer rules, individual datasource fields are assigned to the corresponding infoobject of the infosource. We have compiled a list of sap bibw interview questions and answers to help you with your sap bibw job interview. This means that the reports will include no transactions from the day the report is physically processed. Infocube is data storage area in which we maintain data which we are. Here sap aspirants fresher and expert can view and download the sap sample resume related to all sap module such as hana, business one, abap, fico, bw, basis and etc according to their functional area. May 10, 2020 sap delivered infocubes begins with a number usually 0. If you load data into an infocube in sap bw and then compress it before updating.
Increasing bw cube compression performance running sap. When we perform the compression the data in the infocube moves from ffact table to the efact table. Infocube compression sap bw infocube compression i was dealing with the tab compression while managing the infocube, was able to compress the infocube and send in the e table but was unable to find the concrete answer on the following isssues. Sap bi performance activity cube compression compression. Infosource, datastore objects, infocube, infoobjects, and. Sap biw infocube realtime concepts sap bw bi techies. The best practice is to watch each video twice with the trainer. It is important to note that bi is refreshed once daily each morning. Nov 26, 2019 if you perform compression for a noncumulative infocube, the compression time including the time to update the markers is about 5 ms per data record. You can also check this property under infocube properties subtype. There are two ways to convert standard infocube to hana optimized infocube.
Biw business intelligence warehouse provides facility to define 16 dimensions, out of which 3 are predefined. Refer to sap note 0643687 compression of noncumulative infocubes regarding the subsequent steps for compression. This allows bw to store the data in a granularity which is not necessarily required from a business perspective. Data flow in sap business intelligence data from various sources sap systems, non sap systems, flat files, xml data, databases etc. Sap bi compression status for infocubes document explains abap code to get the compression status for all the infocubes in sap bi system which is never compressed. It aggregates records with equal keys from different requests. To save memory space, the cm compression adso doesnt use a change log table, only an inbound table and an active data table. Basics of cube aggregates and data rollup sap blogs. Below is the pattern details for this fm showing its interface including any import and export parameters, exceptions etc as well as any documentation contributions specific to the object.
Data extraction creation and customization of info sources, transfer structures. When you perform this compression by choosing the check box a. Therefore compression is done best during nonreporting hours or weekends. Jun 16, 2019 infocube partitioning sap bi pdf if there is a cube with uncompressed requests and 10 dimensions every dimension brings with it a local bitmap index than there are. Go to infocube and click to open the editing screen. In sap bi, an infocube contains extended star schema as shown above. Because the realtime infocube is compressed in sap bw using process chains, the. Information about infocube compression infocube compression. May 11, 2020 sap bw bi stands for business information warehouse, also known as business intelligence. The user defined partition is only affecting the compressed efact table. Every infocube has a datapackage dimension that holds the request id.
Top sap bibw interview questions and answers for 2020. Sap bi provides you with a range of tools that support you in generating interactive reports, and thereby facilitate decisionmaking at every level. Feb 22, 2014 there are more sap bw tutorials available in complete course. The root cause of the performance issues with bw cube compression are described in detail in the first sap note. There is no semantic basis for compression with sap hanaoptimized infocubes.
Sap bw training complete bw course sap bi training. Sap note 1522494 dtp requests can not be compressed. It automates the process like data load, indices creation, deletion, cube compression etc. Sap note 834829 compression of bw infocubes without update of markers. Instead, the compressed data now appear in the e fact table. Compression transfers the data from the f fact table to the e fact table while eliminating the request information in the infocube. The entire request ids will be deleted and compressed into a single request. Can we change the index type from bit map to btree in fact table. Compression of infocube would eliminate these disadvantages and bring data from different requests together into one single request.
For any business, data reporting, analyses and interpretation of business data is very crucial for running business smoothly and making decision. The sap hanaoptimized infocube is a standard infocube that is optimized for use with sap hana. Sap bwbi manage the data and enables to react quickly and in line with the market. Db2 hardware data compression is unique, and affects both performance. Sap biw infocube realtime concepts, bi, bi certification material, extraction, infocube, sap bi. When you create sap hanaoptimized infocubes, you can assign characteristics and key figures to dimensions.
Bw on sap hana in combination with sap businessobjects bi 4. Db2 hardware data compression is unique, and affects both performance and cost. Infocube plays important role in sap bw, it provides multi dimensional modeling capabilities in sap bw. Infocube is structured as the star schema and it is a data storage area. Doing a compression can have an impact on the daily business and also affects reporting during this time.
Best practices for sap business information warehouse on db2. Design and maintenance of infocubes, ods objects, infosets, multiproviders with consistent star schema and efficient multidimensional data modeling techniques customizations. Hence the compressed data is stored in the etable, the uncompressed. Even though theyre not new in bw4hana sap introduced them in. The infocube which is a physical storage device which is used to store the data. What is happening behind the scene is after the compression, the f fact table contains no more data. Sap bi compression status for infocubes applies to. In this class you are going to learn what is the purpose of business intelligence and how it is going to help to any business to take better business decisions. The sap fan club forums view topic course ca and ca report writer and painter. Many customers already use sap bw as a strategic tool for companywide control of important processes. Sap bwbi stands for business information warehouse, also known as business intelligence.
The system does not create any dimension tables apart from the package dimension however. Hi, yes,it is possible to load data from infocube to dso, but we should maintain the update mode as summation only for key figures but not for characteristics we can change the update mode in the transformation by selecting the required rule and go to rule details and now there is a property called agregation we need to set it to sum. Below is the basic information available for this sap report including which objects it interacts with such as tables, function modules, includes etc. Large value show better compression better quality. The infocubes are used to create summarized reports. Compression is critical, as the compressed data can no longer deleted from the infocube using its request ids. Sap bw bi manage the data and enables to react quickly and in line with the market. Type of infocube infocube is classified in to three types based on the way of maintaining and distributing the data. If it is 1 the aggregate is a copy of the info cube and should be deleted. If you perform compression for a noncumulative infocube, the compression time including the time to update the markers is about 5 ms per data record.
During infocube compression one of the following errors is encountered. Best practices for sap business information warehouse on. Part of my requirement is that the program may be executed again later on, and that some records that were previously inserted are no longer necessary and will be delet. Jun 16, 2019 infocubes in sap bi pdf sap bw infocube learn sap bw in simple and easy steps starting from overview of sap bi, data warehousing, data flow, transformation, infoarea, object. It helps the consultants to decide when to compress the infocube data based on the data volume. Sap delivered infocubes begins with a number usually 0. International technical support organization best practices for sap business information warehouse on db2 for zos v8 may 2005 sg24764400.
It is a selfenclosed data set encompassing one or more related business processes. In this list of interview questions you will find what is table partition, multiprovider, types of multiproviders, infocube, operational data store, infoobjects, tcode for infocube and data target administration. Special features in infocube compression special features in query execution the validity table the first two points are discussed in tandem, since data compression is strongly connected with the upload sequence. According to sap the corporate memory cm contains the complete history of the loaded data. Compression sap netweaver business warehouse community. Sap bi performance activity cube compression code gallery. Scenario 1 converting a regular infocube to an inmemory optimized infocube. Mar 04, 2019 infocubes in sap bi pdf march 4, 2019 posted by admin sap bw infocube learn sap bw in simple and easy steps starting from overview of sap bi, data warehousing, data flow, transformation, infoarea, object. Mar, 2014 the root cause of the performance issues with bw cube compression are described in detail in the first sap note. Scenario 1 converting a regular infocube to an in memory optimized infocube. Best practices for sap bi using db2 9 for zos ibm redbooks.
Administration and performance optimization amazon s3. Document explains the abap code which gives the compression status details of cubes in the sap bi. It helps the consultants to decide when to compress the infocube. See here to view full function module documentation and code listing. Feb 27, 20 sap bi performance activity cube compression compression. This blog is intended as a stepbystep guide for increasing bw cube compression. Infocube compression is used to eliminate zero values as key figures are contained in the infocube. Infocube is classified in to three types based on the way of maintaining and distributing the data. There are more sap bw tutorials available in complete course. This book will substantially contribute to the success of sap bw projects in many companies. Compression in bw infocubes sap netweaver business warehouse scn wiki. In our example, the aggregate is built with a smaller multidimensional structure than the infocube. X for smarties series tbw10 solution exercise 5 creating an infocube 2.
Oct, 20 compression is critical, as the compressed data can no longer deleted from the infocube using its request ids. Customization of datasources in lis, and lo cockpit, generic extractors to match the business requirement. Infocube partitioning sap bi pdf if there is a cube with uncompressed requests and 10 dimensions every dimension brings with it a local. Oct 10, 20 every infocube has a datapackage dimension that holds the request id. Embedded infocubes are created from sap bw, not sap bpc. Implementing sap business planning and consolidation amazon s3. If the f fact table for your infocubes is small without being compressed, you should delete the secondary indexes before loading and. The report should contain automatic subtotals due to the fact that cost element groups are used instead of row formulas. Open infocube and you can see the subtype as hana optimized infocube. Our focus is on delivering value to our customers and providing a challenging set of projects for consultants. Sap bw infocube learn sap bw in simple and easy steps starting from overview of sap bi, data warehousing, data flow, transformation, infoarea, object. Sap bw data flow learn sap bw in simple and easy steps starting from overview of bi objects. Compression of non cumulative infocubes are mandatory.
Compression in bw infocubes sap netweaver business. An infocube consists of a fact table which is surrounded by 16 dimension tables and master data that is lying outside the cube. Compressing a fact table is done in the infocube administration and is based on the request id number. Our approach is based upon continuous education of our consultants, ourselves, and our customers. Tremendous sap bw performance improvement with oracle. Both business areas use an sap erp and an sap bw system as well as. Depending on the datamodel of the infocube and the frequency of loads as well as the content of the loaded data this can have a significant impact on the datavolume. Non cumulative key figures dont maintain data in the infocube but the value is calculated at the run time of the query. Data flow in sap business intelligence data from various sources sap systems, nonsap systems, flat files, xml data, databases etc. Schedule a weekly compression process chain to compress all infocubes for which compression is not executed immediately after each data load. The bw cube compression uses the sql server merge command in sql server 2008 and all newer releases. Note if you are using an oracle database as your database, you can also execute queries on the relevant infocube while compression is running.
Subsequent compression of the same infocube will be from the beginning again. The database specific information presented in this article is. You must be certain that the data loaded into the infocube is correct. Hi guys, i was going through some stuff to improve the performance for our queries. Sap note 590370 too many uncompressed request f table partitions sap note 1461926 faq. Your own infocube should begin with a letter from a to z and that it should be 3 to 9 characters in length. Summary document explains abap code to get the compression status for all the infocubes in sap bi system which is never compressed. Using sasconnect with the sasaccess interface to sap bw.
Could anybody please give in details about the indexing mechanism for infocubes. Infocubes ultimate sap biw concepts explaination sap blogs. Compression status for all infocube is displayed in the alv list. Sap bw training videos will help learning the module at your own pace.
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