How to create DB partitioning in active data tables for ods?

Question

hi all,
Can anyone let me know how to create DB partitioning in active data tables for ods. if any docs pls share with me at my email id : [email protected]
regds
haritha

Answer 1

Haritha,
The following steps will briefly explain you to improve the performance in terms of DB partitioning as well as loading. Please find the same,
transaction RSCUSTA2,
oss note 120253 565725 670208
and remove 'bex reporting' setting in ods if that ods not used for reporting.
hope this helps.
565725
Symptom
This note contains recommendations for improving the load performance of ODS objects in Business Information Warehouse Release 3.0B and 3.1 Content.
Other terms
Business Information Warehouse, ODS object, BW, RSCUSTA2, RSADMINA
Solution
To obtain a good load performance for ODS objects, we recommend that you note the following:
1. Activating data in the ODS object
In the Implementation Guide in the BW Customizing, you can implement different settings under Business Information Warehouse -> General BW settings -> Settings for the ODS object that will improve performance when you activate data in the ODS object.
1. Creating SIDs
The creation of SIDs is time-consuming and may be avoided in the following cases:
a) You should not set the indicator for BEx Reporting if you are only using the ODS object as a data store.Otherwise, SIDs are created for all new characteristic values by setting this indicator.
b) If you are using line items (for example, document number, time stamp and so on) as characteristics in the ODS object, you should mark these as 'Attribute only' in the characteristics maintenance.
SIDs are created at the same time if parallel activation is activated (see above).They are then created using the same number of parallel processes as those set for the activation. However:if you specify a server group or a special server in the Customizing, these specifications only apply to activation and not the creation of SIDs.The creation of SIDs runs on the application server on which the batch job is also running.
1. DB partitioning on the table for active data (technical name:
The process of deleting data from the ODS object may be accelerated by partitioning on the database level.Select the characteristic after which you want deletion to occur as a partitioning criterion.For more details on partitioning database tables, see the database documentation (DBMS CD).Partitioning is supported with the following databases:Oracle, DB2/390, Informix.
1. Indexing
Selection criteria should be used for queries on ODS objects.The existing primary index is used if the key fields are specified.As a result, the characteristic that is accessed more frequently should be left justified.If the key fields are only partially specified in the selection criteria (recognizable in the SQL trace), the query runtime may be optimized by creating additional indexes.You can create these secondary indexes in the ODS object maintenance.
1. Loading unique data records
If you only load unique data records (that is, data records with a one-time key combination) into the ODS object, the load performance will improve if you set the 'Unique data record' indicator in the ODS object maintenance.
Hope this helps..
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Thanks,
Gattu