What is 'text foreign key' in SAP BC-DWB-DIC - ABAP Dictionary?

text foreign key - Overview

• Component: BC-DWB-DIC

• Component Name: ABAP Dictionary

• Description: Special type of foreign key. In a text foreign key, the key of the foreign key table consists of the key of the check table and an additional language key field.

text foreign key - Details

• 
  Key Concepts: 
  A text foreign key is a type of foreign key in the ABAP Dictionary of SAP. It is used to link two tables together, where the foreign key is a text field instead of a numerical field. This allows for more flexibility in the data structure, as the text field can contain any type of data. 
  
  How to use it: 
  To use a text foreign key, you must first create two tables in the ABAP Dictionary. The first table should contain the primary key, which is a numerical field. The second table should contain the foreign key, which is a text field. Once both tables are created, you can link them together using the text foreign key. 
  
  Tips & Tricks: 
  When creating a text foreign key, make sure that the data types of both fields match. For example, if the primary key is an integer, then the foreign key should also be an integer. Additionally, make sure that both fields have the same length and format. 
  
  Related Information: 
  Text foreign keys are similar to other types of foreign keys in SAP, such as numerical and date fields. They are also related to other database concepts such as primary keys and indexes.