Aggregate awareness is a term that describes the ability of a universe to make use of aggregate tables in a database. Export a document as a pdf, text, excel or excel 2007 file. If we did not use aggregate awareness, we would need to define separate objects for each of the fact tables which would be difficult to understand from a users point of view. Aggregate awareness is the ability of a universe to make use of aggregate tables in a database. Aggregate awareness is a function in universe designer that makes use of aggregate tables. An aggregate table which summarises the above table by departure month amongst others. Index awareness is a feature that will help the idt use key columns while generating sql queries to speed up data retrieval. An aggregate table is summary table that dba build to execute querys faster. Verify business object accuracy and integrity lesson 4.
Introducing web intelligence bo architecture describing web intelligence concepts explaining web intelligence core functionality creating web intelligence documents with queries querying with web intelligence creating a new document modifying a documents query. Ill start by listing the five steps to setting up aggregate awareness in a sap businessobjects universe. Detect incompatability option is provided by bo in order to find out incompatible objects based on some crietria. Top 20 business objects interview questions and answers pdf. Apr 20, 2010 steps involved in enabling aggregate awareness are credits to complete reference business objects reference by cindi howson are. Aggregate awareness is a feature of designer that makes use of aggregate tables in a database. In this tutorial, you will change the select statements for both a dimension and a measure. I used index awareness prompt in a parent report and child report. Jan 02, 2014 ill start by listing the five steps to setting up aggregate awareness in a sap businessobjects universe. Aggregate awareness improves the performance of a query by reducing the query fetch time. String aggregation or list aggregate listagg function in bo. The following tutorials have been developed to help you get started using the business intelligence suite products. Using index awareness and setting up a foreign key column on your object means that if no objects are used from that table in this case countrys then the foreign key column kicks in and takes the place of the object. Business objects training classes and business objects training in camp pune.
Business objects xi web intelligence aggregation issue 11. When this is possible, all queries regardless of reportingsql tool can benefit from the aggregations. Before we get into the syntax, here is a quick overview of how the function works. Business objects training classes in puneerp academy. When we go for aggregate awareness in business objects do we need to insert the materialized view or the base table. Aggregate tables allow for faster querying speed and increases query performance manifolds. Aggregate aware is one of the powerful functions in bo and very common famous function in business objects designer and reports. The aa function takes multiple fields from multiple tables that have been inserted into your universe and determines which one to use depending on objects selected for a query by the. Sap businessobjects web intelligence users guide sap help portal. When i call child report using opendocument i pass key fields in the index awareness prompt.
T elling database to redirect to the desired query table based on selection objects in report so this will not track all the tables in db it will directly query from the aggregate table. Using contexts is the most effective way to solve chasm traps. However, it can be solved easily by using aggregate awareness in business objects. Map the star schema to understand which data columns do not work with the aggregate tables. Sap businessobjects business intelligence platform 4. Performance tuning in business objects environment sap. Set sql options and sql generation parameters in the business layer properties.
The navigation map and report map panes list all the reports in a document. You can perform an integrity check on business layer. The video versions of these tutorials on youtube include optional text captions that can be translated into a number of languages. Sap businessobjects business intelligence suite document version. Aug 10, 2010 the second step is to set up the aggregate awareness function in your objects.
By setting the month dimension as incompatable with the year fact aggregate navigation, the measure will selected from the month table. The main idea of this feature is to use the available database index. Aggregate awareness functionality will help me in achieving the same. Interview questions and answers free pdf download page 19 of 51 what are the 2 different approaches of implementing aggregate awareness.
Book description the definitive reference for building actionable business intelligencecompletely revised for sap businessobjects bi 4. Sep 29, 2014 if we did not use aggregate awareness, we would need to define separate objects for each of the fact tables which would be difficult to understand from a users point of view. When i put this on the aggregate report it is doing the following. May 10, 2012 may 10, 2012 business objects leave a comment. Through welldesigned universes, report designers and business users will be able to create reports without having to know anything about the underlying data source or structure. I am new to business objects and more specifically desktop intelligence. Validating objects lesson objectives after completing this lesson, you will be able to. Free web intelligence best practices guide we put together a best practices guide for web intelligence development that includes over 20 pages of tips and techniques for developing business ready reports. Accessing an object from its path in the business layer. Aggregate awareness function is used in scenarios where we have same fact tables in different grains. Sap business objects interview questions and answers. And you make the universe object aware to use those aggregate table at run time, if only summary info is required. The ibi recommendation was to leverage database solutions for handling aggregate awareness. Applying the aggregate awareness optimization method.
The second step is to set up the aggregate awareness function in your objects. Thats why the choices within the aggregate aware measure are set from best to worst, left to right. May 12, 2014 aggregate awareness functionality will help me in achieving the same. Top 20 business objects interview questions and answers. The query objects exclude all possible sql choices for an aggregate aware function. Selection from creating universes with sap businessobjects book. A demo with a couple of basicsimple tables where i. Setting incompatibilities of objects with tables in aggregate navigation section. Hi, if we have summarized data in the materialized view.
Universe design with sap businessobjects bi amazon s3. Experience in resolving join path problems, including loops and traps in the universes using aliases, contexts, and aggregate awareness in sap business objects designer experience with sap business objects reporting functionalities, including master detail, slice and dice, drilling methodology, filters, ranking, sections, and graphs and breaks. Use aggregate aware function in objects that needs to be made aggregate aware. Aggregate awareness the aggregate awareness feature is used to increase performance by leading the report query to select objects from the aggregated table instead of the detailed table at runtime. Aggregate tables contain precalculated aggregated data. Identify all the possible definitions tablecolumn combinations of the objects. Migrating bo aggregate awareness functionality to obiee. When a query is fired against the base table the query gets rewritten by query rewrite feature of materialized view. Responsible for effort estimations for business objects universe and reports requirement.
Unleash the full potential of business intelligence with factbased decisions, aligned to business goals, using reports and dashboards that lead from insight to action. Sap universe designer is a tool used by businessobjects developers to create semantic layer between. Define aggregate aware objects in a business layer 5. Business objects interview questions and answers business.
Jun 02, 2014 zeek zeek, the region table is being used in the where clause. Dec 19, 2012 once aggregate tables have been inserted into your data foundation, the next step to setting up aggregate awareness in a universe is to modify the select statement of certain objects in the business layer to make them aggregate aware. Inserting a navigation path object into a business layer. There are three main steps to set up the aggregate awareness feature.
Feb 03, 2015 relaxing jazz for work and study background instrumental concentration jazz for work and study duration. This class is a combination of instructorled lecture, discussions, and demonstrations with a heavy emphasis on handson workshops to teach businessobjects 4. May 10, 2012 aggregate awareness is a term that describes the ability of a universe to make use of aggregate tables in a database. Using aggregate awareness in conditions business objects. Dear readers, these sap webi interview questions have been designed specially to get you acquainted with the nature of questions you may encounter during your interview for the subject of sap webi. Insert the aggregate table into the universe and add the appropriate joins. We are trying to use it as a reporting tool for our scientific data but running into issues when performing calculations to create objects and then trying to perform statistical or aggregate functions on them. I have sucessfully created a condition that will derive the dates of the first and last days for the previous month, however if i attempt to use this condition in a report that only hits the aggregate.
Go here to see the second part of our aggregate awareness series to see how to implement your new summary tables into a universe. Sap business objects developer resume example american. If you are not using aggregate awareness you dont need to define incomatiblity objects. When i remove aggregate awareness the universe works fine again, but then without aggregate awareness. Created the new universes as well as customizing the old universes using aliases, contexts, aggregate awareness, aggregate navigation and hierarchies as per the requirements. Sap universe designer aggregate awareness tutorialspoint. When we define aggegrate awareness, we manually define incompatible objects.
There are times when you want to run query againts summary tables. For example, teradata now allows aggregate join indices aji. If you have summary tables and detailed tables and if you want the bo to pick up right table based on what kind of dimension objects you picked at the report level. Our previous reporting tool, business objects, allowed aggregate awareness. Business objects developer resume samples velvet jobs. It will speeds up the execution of queries, improving the performance of sql transactions using database aggregate tables. Using this function we can define only one object for the measures in the fact tables. Does power bi support aggregate awareness aggregate awareness is supported in obiee. The business layer and its classesfolders and objects.
Applying the aggregate awareness optimization method 17 lesson. Sum qty sum price total, in other words it is doing. A query based on an indexed database column will retrieve data faster than a normal column. Aggregate awareness is a feature that makes use of predefined aggregate tables to enhance the performance of sql transactions.
Right now i have issue when i try to link the index awareness prompt reports. Using the function correctly can greatly improve the performance and user experience. This you will see in setting up in navigation path. When i try to aggregate that variable on the summary report bowi is not calculating correctly. Add business layer folders create business layer dimension objects create time dimension objects create attribute objects lesson 3. You can select the objects you want to perform integrity check. Aggregate awareness solving steps theoritical basic definition. Information design tool user guide sap help portal. Ask your universe designer to remove the incompatibility between the objects. To use aggregate awareness in a universe, you need to arrange objects by aggregation level and objects are. New content is added as it becomes available, so check back on a regular basis.
The purpose of these tables is to enhance the performance of sql transactions. The semantic layer offers a functionality called aggregate awareness which automatically makes the sql sentence optimally point to the highest aggregation level available in the schema for the requested result set. Index awareness creating universes with sap businessobjects. The using functions, formulas and calculations in web intelligence guide provides detailed information on the advanced calculation capabilities available in when you perform data analysis. As per my experience good interviewers hardly plan to ask any particular question during your interview, normally questions start with some basic concept of the subject and later they continue based. Tutorials sap businessobjects information design tool 4. Is it possible to set up aggregate awareness in a universe with contexts and it will still work with objects from 2 contexts in one query. Dec 31, 2015 many of us are not aware of this listagg function in bo universe since this is an oracle 11g function and should work well in bo when you use oracle db. So if you have aggregate tables in your db, you will always get the summarised data as compared to detailed one. There are times when you want to run query againts summary tables rather then normal non aggregated tables because of the amount of data calculation is involved. Topics to be covered include universe creation, creating relational database connections, creating data foundations, creating business layers, folders and objects, filters, table aliases, aggregate awareness, viewing table keys, publishing and securing universes, index awareness, universe maintenance, and converting 3. Well dig deeper into each step in the next section.
Information design tool user guide crystal reports. An overview of aggregate awareness in business objects. Using functions, formulas and calculations in web intelligence. Jan 22, 2014 aggregate aware is one of the powerful functions in bo and very common famous function in business objects designer and reports. Have a look on designer pdf help files for more details about this. Aggregate awareness in business objects universe design. It is a concept which involves the creation of summary tables which leads to simplified storage of.
In this tutorial, we are going to learn about aggregate awareness that is indeed one of the most powerful features of business objects. You can use multiple universes to solve a chasm trap in a webintelligence universe when multiple sql for measures cannot be used as there are dimension objects defined for one or both of the fact tables. Aggregate tables are smaller than detail tables and can be aggregated in a number selection from sap businessobjects bi 4. Aggregate awareness an aggregate table is a summary table that dbas build to execute queries faster. Using an alias and the aggregate awareness function. Audience the target audience for this course is anyone responsible for creating and designing universes using a businessobjects enterprise xi r2 or xi 3.