Data Extraction
Data extraction in BW is extracting data from various tables in the R/3 systems or BW systems. There are standard delta extraction methods available for master data and transaction data. You can also build them with the help of transaction codes provided by SAP. The standard delta extraction for master data is using change pointer tables in R/3. For transaction data, delta extraction can be using LIS structures or LO cockpit etc.
Types of Extraction:
Application Specific:
- BW Content Extractors
- Customer Generated Extractors
Cross Application Extractors
- Generic Extractors.
BW Content Extractors
SAP provided the predefined Extractors like FI, CO, LO Cockpit etc, in OLTP system (R/3) . The thing that you have to do is, Install business Content.