What is projection in SAP EIM-DS - Data Services?

SAP Term: projection

• Component: EIM-DS

• Component Name: Data Services

• Description: An operation within a SELECT statement that the software can push to the database; the subset of columns that you map on the Mapping tag in the query editor.

Smart SAP Assistant

• Key Concepts: 
  Projection is a feature of SAP Data Services (EIM-DS) that allows users to create a subset of data from an existing data source. This subset can be used for further analysis or to create a new data source. Projection can be used to reduce the amount of data that needs to be processed, as well as to improve the performance of queries.
  
  How to use it: 
  Projection can be used in SAP Data Services by creating a projection definition. This definition includes the source data, the columns to be included in the projection, and any filters or conditions that should be applied. Once the definition is created, it can be used to create a new data source or to modify an existing one.
  
  Tips & Tricks: 
  When creating a projection definition, it is important to consider the performance of the query. If possible, try to limit the number of columns and filters that are included in the definition. This will help ensure that the query runs quickly and efficiently. Additionally, it is important to consider how often the projection will need to be updated. If it will need to be updated frequently, it may be beneficial to create a separate projection definition for each update.
  
  Related Information: 
  For more information on using projections in SAP Data Services, please refer to the official documentation at https://help.sap.com/viewer/product/SAP_DATA_SERVICES/4.2/en-US/f8d7f9a3c9e14b6f8a7d3c2b1e5f9a2d.html