What is primary key constraint in SAP EIM-DI-DF - SAP BusinessObjects Data Federator?

SAP Term: primary key constraint

• Component: EIM-DI-DF

• Component Name: SAP BusinessObjects Data Federator

• Description: A constraint that prescribes that all the values of a column must be unique.

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• Key Concepts: 
  A primary key constraint is a type of database constraint used in SAP BusinessObjects Data Federator (EIM-DI-DF). It is used to ensure that each row in a table has a unique identifier, or primary key. This helps to ensure data integrity and accuracy. 
  
  How to use it: 
  When creating a table in SAP BusinessObjects Data Federator, you can specify a primary key constraint. This will ensure that each row in the table has a unique identifier. To do this, you must specify the columns that will be used as the primary key. 
  
  Tips & Tricks: 
  When creating a primary key constraint, it is important to choose columns that are not likely to change over time. This will help to ensure data integrity and accuracy. Additionally, it is important to make sure that the columns you choose are not nullable, as this could lead to errors when inserting data into the table. 
  
  Related Information: 
  For more information on primary key constraints and how to use them in SAP BusinessObjects Data Federator, please refer to the official documentation here: https://help.sap.com/viewer/product/SAP_BUSINESSOBJECTS_DATA_FEDERATOR/14.2/en-US