SAP ABAP Data Element GBIWPIDELTA_VIA_AIED (Determination of Delta Using AIED Process)
Hierarchy
☛ SAP_FIN (Software Component) SAP_FIN
   ⤷ FI-SL-IS (Application Component) Information System
     ⤷ GBIW_PI (Package) FI-SL: Interface to Business Information Warehouse
Basic Data
Data Element GBIWPIDELTA_VIA_AIED
Short Description Determination of Delta Using AIED Process  
Data Type
Category of Dictionary Type D   Domain
Type of Object Referenced     No Information
Domain / Name of Reference Type BOOLE    
Data Type CHAR   Character String 
Length 1    
Decimal Places 0    
Output Length 1    
Value Table      
Further Characteristics
Search Help: Name    
Search Help: Parameters    
Parameter ID   
Default Component name    
Change document    
No Input History    
Basic direction is set to LTR    
No BIDI Filtering    
Field Label
  Length  Field Label  
Short 10 AIED 
Medium 19 AIED (After Image) 
Long 34 AIED (After Image from Totals Tab) 
Heading 50 AIED (After Image from Totals Table) 
Documentation

Definition

Use

If you opt for this delta procedure, the Time Stamp field is used in an initial step to select all of the records changed since the last delta load in the totals table. In a second step, all logically dependent records for the records selected in the initial step (such as the equivalent credit record for a debit record) are selected subsequently and transferred to BW.

Advantages:

  • Postings can be made during delta initialization
  • Data is available in BW in a timely fashion
  • Relatively good performance when relatively few totals records have been added or changed between two delta transfers
  • No start routine required to calculate the Balance key figure

Disadvantages:

  • Severe performance problems when very many totals records have been added or changed between two delta transfers
  • Relatively high volume of data is transferred to BW
  • DSO or ODS is required due to overwrite mode (with restriction to a maximum of 16 key fields!)
  • Additional secondary index on totals table is necessary for the Time Stamp field

Notes on System Performance

Due to the above-mentioned two-step procedure, this delta procedure can only transfer approximately 1000 totals records (which correspond to between 50 000 and 70 000 records in BW due to the period and currency block size in the totals record) per minute to BW. Consequently, we only recommend using this procedure if only relatively few totals records are added or changed between two delta transfers. If a relatively large number of totals records are added or changed between two delta transfers, this procedure invariably leads to severe performance problems. Almost 2 hours are required for 100 000 extracted totals records, for example.

If this procedure leads to performance problems that persist after SAP Note 1056245 has been applied, you need to use a different delta procedure.

Further Important Notes on this Procedure

If you opt for this procedure, you need to make sure that the update type Overwrite is selected for all key figures in the transformation to DSO or in the update rule for the ODS.

Furthermore, it is essential that you ensure that all relevant characteristics of the transfer structure are defined as key fields in the DSO or ODS because data could otherwise be lost. For more information, see SAP Note 1002272.

Dependencies

Example

History
Last changed by/on SAP  20100310 
SAP Release Created in