What is extraction structure in SAP BC-BW - BW Service API?

SAP Term: extraction structure

• Component: BC-BW

• Component Name: BW Service API

• Description: Structure in which DataSource data is made available in the source system. The extraction structure contains the number of fields that are offered by the extractor in the source system for the data loading process into BW.

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• Key Concepts: 
  Extraction structure is a feature of the SAP BW Service API that allows users to extract data from SAP BW into an external application. It is a set of fields that define the data to be extracted, such as the source system, the data source, and the fields to be extracted. The extraction structure can be used to create a query in an external application that will retrieve the desired data from SAP BW. 
  
  How to use it: 
  To use the extraction structure, first create a query in an external application that will retrieve the desired data from SAP BW. Then, define the extraction structure in SAP BW by selecting the source system, data source, and fields to be extracted. Finally, execute the query in the external application and the data will be retrieved from SAP BW using the extraction structure. 
  
  Tips & Tricks: 
  When creating an extraction structure in SAP BW, it is important to ensure that all of the fields are correctly defined. This will ensure that all of the desired data is retrieved from SAP BW when executing the query in an external application. Additionally, it is important to keep track of any changes made to the extraction structure as this can affect how data is retrieved from SAP BW. 
  
  Related Information: 
  For more information on using extraction structures in SAP BW, please refer to the official documentation on SAP Help Portal: https://help.sap.com/viewer/product/SAP_BW_SERVICE_API/7.5/en-US