What is unique index in SAP BC-DWB-DIC - ABAP Dictionary?

SAP Term: unique index

• Component: BC-DWB-DIC

• Component Name: ABAP Dictionary

• Description: A log in which the index fields have key attributes and each field contained in the index identifies each record of the table uniquely. You can set this index attribute in the maintenance screen for indexes.

Smart SAP Assistant

• Key Concepts: 
  A unique index is a type of index in the ABAP Dictionary of SAP software. It is used to ensure that the values stored in a database table are unique. This means that no two records can have the same value for the fields that are part of the unique index. 
  
  How to use it: 
  To create a unique index, you must first define the fields that will be part of the index. These fields must be defined as either primary keys or foreign keys in the database table. Once the fields have been defined, you can create the unique index by selecting the “Create Unique Index” option in the ABAP Dictionary. 
  
  Tips & Tricks: 
  When creating a unique index, it is important to consider which fields should be included in the index. The fields should be chosen carefully to ensure that no two records can have the same value for those fields. Additionally, it is important to consider how often the values of those fields will change, as this could affect performance if they are changed frequently. 
  
  Related Information: 
  Unique indexes are just one type of index available in SAP software. Other types of indexes include non-unique indexes and clustered indexes. Additionally, there are other ways to ensure data integrity in SAP software, such as using check constraints and triggers.