Which of the following are supported joins in CDS views?

In Core Data Services (CDS) views, supported join types include Inner joins, Left outer joins, and Right outer joins. The correct answer focuses on the Inner join, which is essential because it combines records from two or more tables based on a related column, ensuring that only matching rows from both tables are included in the result set. This is particularly important for scenarios where you want to analyze data that is intrinsically related and without any missing records from either side.

Inner joins are fundamental in establishing relationships and retrieving relevant data, as they eliminate any records that do not have matches in both participating datasets. In many database operations, particularly in complex queries that involve multiple tables, Inner joins help maintain data integrity and relevance.

The other options, such as the upper join, do not exist as a recognized type of join in SQL or CDS views, which means they cannot be utilized for data retrieval in this context. This distinction emphasizes the importance of knowing which join types are applicable and supported within CDS views.