What is key field in SAP BC-DWB-DIC - ABAP Dictionary?

SAP Term: key field

• Component: BC-DWB-DIC

• Component Name: ABAP Dictionary

• Description: Field that is part of a key that uniquely identifies the entry in a table. The key fields form the standard key.

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• Key Concepts: 
  A key field is a field in an ABAP Dictionary table that uniquely identifies each record in the table. It is used to ensure that no two records have the same value for the key field. The key field is also used to create relationships between tables. 
  
  How to use it: 
  When creating a table in the ABAP Dictionary, you can specify one or more fields as the key field. This will ensure that each record in the table has a unique value for the key field. You can also use the key field to create relationships between tables. 
  
  Tips & Tricks: 
  When creating a key field, make sure that it is not too long or too short. A key field should be long enough to ensure that each record has a unique value, but not so long that it takes up too much space in the database. 
  
  Related Information: 
  The ABAP Dictionary also allows you to create foreign keys, which are used to create relationships between tables. Foreign keys are created by referencing the key fields of other tables.