What is the use of Custom Extractor in SAP R/3 system?

In order to extract data from tables, you need to follow steps:

• Create a View of the required table from where the data needs to be extracted or view over multiple joined tables
• Navigate to Transaction SE11 and Select option 'View'. It will ask for a name, name it something like 'View_TableName'.
• Select which all the fields of the tables needs to be extracted and click on activate
• Go to Transaction RS02 and create a transaction extractor and name it something like 'Trans_TableName'
• Specify the position of the created extractor in the component hierarchy.
• If you want to provide descriptions, add it. Specify the view name and save it.

• Besides using the view for DB extraction, the other ways to do the same are:

  • Using Function Modules
  •  Using SAP Query