What is secondary table key in SAP BC-ABA - ABAP Runtime Environment?

SAP Term: secondary table key

• Component: BC-ABA

• Component Name: ABAP Runtime Environment

• Description: A hash key or sorted key which can be created for each internal table. Up to 15 secondary table keys can be created for each internal table. A secondary table index is created internally for each sorted secondary key.

Smart SAP Assistant

• Key Concepts: 
  A secondary table key is a field in an SAP table that is used to link two tables together. It is used to store additional information about a record in the primary table, such as a customer's address or contact information. The secondary table key is used to join the two tables together, allowing for more efficient data retrieval. 
  
  How to use it: 
  In order to use a secondary table key, you must first create the primary table and the secondary table. The primary table should contain the main data, such as customer information, while the secondary table should contain additional information related to the primary table. Once both tables have been created, you can then create a relationship between them using the secondary table key. This will allow you to easily retrieve data from both tables when needed. 
  
  Tips & Tricks: 
  When creating a relationship between two tables using a secondary table key, it is important to ensure that the data types of both fields are compatible. This will ensure that the data can be retrieved correctly and efficiently. Additionally, it is important to ensure that the data in both tables is up-to-date and accurate in order to ensure that the relationship between them remains valid. 
  
  Related Information: 
  The BC-ABA ABAP Runtime Environment provides tools and functions for creating and managing SAP tables and their relationships. It also provides tools for creating and managing relationships between tables using secondary table keys. Additionally, it provides tools for creating and managing database views, which can be used to quickly retrieve data from multiple tables at once.