Performance Tuning in SAP BW/BI

If the client have BW Accelerator implemented. By Creating BWA indices we can improve Query Performance.
else (No BWA Exist)

Check whether BI Stattstics Cubes has been enabled or not
Go to T.code RSDDSTAT -->Query Name --> All, On (X) --> Save it.
So now we have enabled statistics on that query.

For Query RunTime : Stats InfoCubes
0TCTC01 - Low level details can be seen in this Stats cube.
0TCTC02 -
0TCTC03 :(Very Detailed Stats Info) Aggregates fast providing, Aggregates being in use, 
DB Ratio = Read / Transferred, the ratio only recommended is 10%.

For Loading Related:
0TCTC21 - Process statistics
0TCTC22 - InfoPackage
0TCTC23 - DTP

To Check Runtime of BW/BI Queries : Goto T.code RSRT
Provide Query Name - ->Execute & Debug. Query Step ID.
A pop-up window will appear.....Check a few : Use without Cache, Display Statistics Info.

You can check further more info in the following tables :
RSDDSTAT
RSDDSTATAGGR
RSDDSTATAGGRDEF
RSDDSTAT_OLAP
RSDDSTAT_DM

We can build indexes for DSOs, for more performance, we can build Secondary Indexes on DSO Tables.

Comments

Post a Comment

Popular posts from this blog

One stage stop to know all about BW Extractors-Part1

Image
Types of Extractors:               Application specific BW content extractors: Lo Extraction: Logistics refers to the process of getting a product or service to its desired location upon request which involves transportation, purchasing, warehousing etc. Main areas in logistics are: Sales and Distribution (SD) : application 11, 13, 08 (in LBWE T-code) Materials Management (MM) : application 03, 02 Logistics Execution (LE) : application 12 Quality Management : application 05 Plant Maintenance (PM) : application 04, 17 Customer Service (CS) : application 18 Project System (PS) : application 20 SAP Retail : application 40,43,44,45 How the data extraction happens? Extraction can be done using either Full update/delta update. Full load: Incase of logistic application, Full/Initiali
Read more

COPA Extraction Step By Step in SAP BW

Image
COPA Extraction Step by Step: SAP R/3 or SAP ECC: 1. SAP R/3 or ECC goto T.Code KEB0 , In Function: Select Create  Control Parameters: Provide a New CO-PA DataSource Name:1_CO_PA%CL%ERK 2. Select your O perating C oncern, e.g.,IDES. 3. Select radio button Costing-based or Account-based as OC . 4.Select field names for partitioning.e.g. BUKRS (Company Code), Check 5.Click on Info Catalog (F7) 6. Select the Characteristics & Value fields & Keyfigures 7. Select the Package/Development Class for Workbench request 8. Edit your DataSource to select/Hide fields, Save. Datasource created successfully. 9. Extractor Checker or RSA3, extraction. SAP BW:   1. Replicate DataSource 2. Assign InfoSource 3. Transfer all the datasource elements to an InfoSource 4. Activate InfoSource 5. Create a InfoCube (Copy Str from InfoSource) 6. Create Dimension & Define and Assign it. 7. Check & Activate. 8. Create Transformation (Insert or Modify KF
Read more

How does a datasource communicates "DELTA" with BW?

Image
SAP R/3 or ECC DataSource Delta mechanism for SAP BW/BI What is Delta? It is a feature of the extractor which refers to the changes(new/modified entries)occured in the source system. How to identify? In ROOSOURCE table, key in the data source name and check the field "DELTA". If the field is left blank,it implies that the datasource is not delta capable. The field 0RECORDMODE in BW determines how a record is updated in the delta process. Now the question is how this delta will be brought to BW? Using one of the following ways: ABR: After before and Reverse image AIE: After image ADD: Additive image ABR: After before and Reverse image Example: Logistics What is it? Once a new entry was posted or an exiting posting was changed at R/3 side, an after image shows the status after the change, a before image shows the status before the change with a negative sign and the reverse image also shows the negative sign next to the record while indic
Read more