Best Practices for Reporting within SAP Business Planning ...
CPM Guide SAP BPC 5.0
Best Practices for Reporting within SAP Business Planning & Consolidations 5.0
Version 1.00 ? August 2007
Applicable Releases: SAP BPC 5.0
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Table of contents
Introduction .................................................................................................................. 1 General best practices for reporting .................................................................................2
Think about the measures you want to retrieve .............................................................2 Do not use a lot of comment formulas ..........................................................................2 Prevent retrieving MDX calculated formulas as much as possible .....................................3 Turn off the automatic restore option during refresh ......................................................3 Use EvTIM for comparable time periods ........................................................................3 Best practices for using EvDRE........................................................................................3 Be careful with multiple dimensions in Row and ColKeyRange .........................................3 Sum base members via the PagekeyRange to create SQL queries ....................................4 Use the correct options in EvDRE .................................................................................4 Remove parent members from the key range when using Excel formulas for parent calculations ...............................................................................................................5 Number of EvDRE functions in one sheet ......................................................................5 Avoid overlapping ranges when refreshing ....................................................................7 Conditional use of EvDRE............................................................................................7 Avoid the CellKeyRange option, if possible ....................................................................7 Data dump sheet & Excel-based calculations .................................................................7 Text within EvDRE datarange ......................................................................................8 EvDRE and named ranges...........................................................................................8 Turn off the "automatic calculation before refresh" in big workbooks ................................9 Working with add/delete-line functions within EvDRE ranges ...........................................9 Using different data retrieval functions within one workbook (EvDRE & EvGET) ............... 10 Mixing different functions to create custom expands (EvEXP, EvNXP, and EvDRE) ............ 10 About the hidden EvDRE data cache sheet .................................................................. 10 Best practices for using EvGET/EvGTS............................................................................ 11 Using EvGTS instead of EvGET .................................................................................. 11 Specifying all dimension members in the EvGTS function .............................................. 11 Fixing the dimensions that you do not change ............................................................. 11 Developing "dynamic reports" ................................................................................... 11 Reviewing the eTools Help ........................................................................................ 11
1 Introduction
This document describes best practices for building SAP BPC 5.0 reports. Before starting with the best practices, some discussion about EvGET and EvDRE might be helpful. EvGET is the original function that was used to retrieve data from the database. To increase performance, an enhanced formula, EvDRE, was developed. For more information about EvDRE, see the WebExcel Help. An EvGET formula always creates an MDX query, which queries the application. An EvDRE formula creates an MDX query, a SQL query, or both, depending on
the type of members being retrieved. By default, a SQL query is faster than a MDX query. However, sometimes EvDRE creates SQL queries that turn out to be less efficient than an MDX query.
EvDRE does not always perform better than an EvGET function in all cases. In this document, we discuss guidelines for when to use EvGET and when to use EvDRE. However, to be completely sure which formula is the best, you should try both and measure the query time.
2 General best practices for reporting
2.1 Think about the measures you want to retrieve
Try to use the measure in which the data is stored in the database. However, if the application is not big and the concurrency level is low you will not benefit much from this setup.
However, in test situations with high concurrency level (>50 concurrent users) and a big OLAP application (> 2 gigabyte), a huge performance improvement was achieved when using this approach. So if you need Periodic data in an YTD application it is better to retrieve the YTD data for time T and time T-1 and subtract these values from each other. The calculations are performed in Excel (on the client side) which increases performance.
1. If the Account-type dimension is included in the expansion, retrieve the account type using EvPRO, for example, (=EVPRO ( ................
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