5 - OBIEE 11g Essbase Integration

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Rittman Mead Training - Cognizant Technology Solutions

5: OBIEE 11g Essbase Integration

Thursday 7 October 2010

mailto:[email protected]


http://www.rittmanmead.com



Questions This Presentation Will Answer

• What is Essbase?• How Essbase integrates with BI EE?• What are the new features in the BI EE - Essbase integration in 11g?• How outline changes in Essbase can be Synchronized with BI EE?







Agenda

• Essbase Introduction• How Essbase Interacts with BI EE• Import Essbase Metadata into BI EE• Essbase Outline Handling‣ Handling UDAs‣ Handling Alias tables‣ Handling outline changes

• Report on Essbase






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Oracle Essbase

• Standalone OLAP server now owned by Oracle‣ Acquired as part of the Hyperion Acquisition

• Adds a fully-featured OLAP server, separate to the database, as part of theFusion Middleware family of products

• End-User focused, very popularwith business users

• Used to power many of the Hyperion performancemanagement applications

• Similar capabilities to Oracle OLAP

• Supports MDX and XML/Arather than SQL access



Essbase Architecture

• ODBC connectivity to all major RDBMSs, plus SAP B/W• Multi-dimensional OLAP engine• Java and XML/A mid-tier• Essbase query

tools or OBIEE+







Essbase Analytic Capabilities

• Like Oracle OLAP, it has full OLAP capabilities• Drill, pivot, select, compare, rank,

sort, filter, group, stack, calculate,annotate, write-back....

• Reporting tools enabled bydatabase “outline”

• Very easy to add financial-stylecalculations, forecasts, allocationsetc

• Slightly more emphasis on thebusiness/finance user, rather thanthe DBA (as with Oracle OLAP)







Cubes Accessed using MDX and XML/A

• Unlike Oracle OLAP, the primary query language for Essbase is MDX• XML/A used for web-based access (very easy integration with OBIEE)• MDX is supported by Microsoft, SAP, Hyperion, the “standard” for OLAP access‣ Pros : exposes full capabilities of the OLAP model‣ Cons : a new language to use, SQL-based tools are incompatible

With set [CUSTOMER_DIM3] as '[CUSTOMER_DIM].Levels(2).members' set [PRODUCT_DIM3] as '[PRODUCT_DIM].Levels(2).members' set [TIME_DIM3] as '[TIME_DIM].Levels(2).members' set [Q] as 'crossjoin ({[CUSTOMER_DIM3]},crossjoin ({[PRODUCT_DIM3]},{[TIME_DIM3]}))'select { [Accounts].[SALES] } on columns, NON EMPTY {[Q]} properties ANCESTOR_NAMES on rows from

[global.Global]






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OBIEE to Essbase Connectivity

• Introduced in 10.1.3.3.2 version of BI EE• The Oracle BI Server connects to Essbase via the Essbase Client API‣ Low-level access ‣ Precludes the use of Provider Services (implications for clustering)

• Essbase Client needs to be installed on the BI Server server‣ And potentially on the workstation running Oracle BI Administrator

• BI Server generates MDX which is sent to Essbase• Able to leverage Essbase MDX functions



BI EE 11g over BI EE 10g - Essbase Connectivity

• BI EE 10g‣ No native support for UDAs‣ No native support for Alias tables‣ No support for outline changes synchronization to BI EE‣ Limited native Essbase function shipping‣ No native multiple hierarchy handling‣ All prior releases of Essbase (9.3+) supported

• BI EE 11g‣ Native Support for UDAs‣ Native support for Alias tables‣ Support for outline changes synchronization to BI EE‣ Good Essbase native function shipping‣ Native multiple hierarchy handling‣ Currently supported only for 11.1.2 version of Essbase



Labs








Importing Essbase Meta-Data into Oracle BI Enterprise Edition

• Essbase cube metadata (“Outline”) is imported into BI Server Semantic Model using Oracle BI Administrator tool

• Enter connection details • Select application and database to import• An Essbase administrator user is required to do the import


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Importing Essbase Meta-Data into Oracle BI Enterprise Edition

• List of Applications/Databases‣ Select the required Essbase database

‣ Similar to Relational database import





Essbase - BI EE 11g Physical Layer

‣ Hierarchy made up of Generations‣ Generation made up of Key Generation column‣ Generation Key column‣ Attribute columns can be added to display‣ Generation Number‣ Level Number‣ Alias tables......etc

‣ Attribute columns supported‣ Only for lowermost generation in a report

‣ Other columns‣ Memnor - For generating Member Order (outline sort order)‣ Ancestor Ref - Used for value based hierarchies (parent-child)



BI EE 10g Vs 11g - Default Import

10g Default Import 11g Default Import





Essbase - Flatten Measures in BI EE 11g

‣ Each Data source measure dimension can be flattened‣ No more manual process‣ Measure dimension gets flattened‣ Ability to change the measure dimension





Essbase - Create UDA Columns in BI EE 11g

‣ UDA imports supported‣ Full cube UDA import‣ Dimension based UDA import





Essbase - Alias tables in BI EE 11g

‣ Multiple Alias tables supported‣ Can change default Alias table‣ Can add other Alias tables as attribute columns





Essbase - Dimension/Hierarchy Types in BI EE 11g

‣ Supported Dimension Types‣ Measure Dimension (for flattening measures)‣ Time Dimension‣ Other‣ Attribute Dimension

‣ Supported Hierarchy Types‣ Fully Balanced‣ Unbalanced (for ragged)‣ Value (parent-child hierarchies)





Essbase - Dimension/Hierarchy Types in BI EE 11g

‣ Value based hierarchies‣ Used when Essbase outlines change frequently‣ Models each hierarchy to be a parent-child hierarchy‣ No Sync needed with BI EE

‣ when members in an existing dimension get added/deleted





Essbase - Properties in BI EE 11g

‣ ALL member type‣ Implicitly denotes the dimension root node‣ Almost always this has to be checked

‣ Unqualified member names‣ Leave them as defaults for normal outlines‣ If outline has duplicate members, this has to be disabled





Essbase - Measures in BI EE 11g

‣ Measures‣ Have a default aggregation of External Aggregation‣ Measure name need not match with Essbase Outline‣ External name should match with Essbase Outline (if flattened)‣ The recommended agg rule is External Aggregation





Essbase - Variables in BI EE 11g

‣ All substitution variables imported‣ Substitution Variables - 3 scopes‣ Server Variables‣ Application Variables‣ Database Variables

‣ Server Variables ‣ Imported as <servername>.<varname>

‣ Application Variables‣ Imported as <servername>.<appname>.<varname>

‣ Database Variables‣ Imported as <servername>.<appname>.<dbname>.<varname>





Essbase - Variables in BI EE 11g

‣ All database specific substitution variables ‣ Imported automatically as Dynamic Repository Variables‣ Refreshed using MDX‣ Repository Init Block automatically created‣ MDX - manually entered after import





Essbase - BMM Layer in BI EE 11g

‣ BMM Layer created by drag and drop‣ All artefacts for BMM created automatically‣ Dimensions‣ Logical Dimension tables‣ Logical Fact tables‣ Measures

‣ Similar to SSAS and SAP-BW cubes integration





Essbase - Measures & Hierarchies in BI EE 11g

‣ Hierarchies will have same number of Generations as in the Physical layer‣ All Measures imported will have External Aggregation as the aggregation





Essbase - Measures & Hierarchies in BI EE 11g

‣ Most relational modeling techniques supported in BMM‣ Fragmentation - Requires SUM as aggregation rule ‣ Federation ‣ Calculations





Essbase - Presentation Layer in BI EE 11g

‣ Same as Relational Sources‣ Drag and Drop as well as Manual Creation Supported‣ One Subject Area can have a maximum of only one BMM‣ Security on individual columns/tables supported for Essbase sources as well‣ No change/No Essbase specific functionality in this layer





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5 - OBIEE 11g Essbase Integration

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