What selection methods can be used for search helps in SAP?

The selection methods for search helps in SAP can indeed include using transparent tables. Transparent tables serve as the basic structure for storing data within the SAP database. When creating search helps, the underlying data from these tables can be directly accessed to provide users with a list of options or entries that match their criteria. This is particularly effective because transparent tables allow for direct querying, which ensures that users can retrieve relevant search results quickly and efficiently.

In the context of selecting appropriate data structures for search helps, other methods such as database views, maintenance views, or help views also have their place, but they are not as foundational as transparent tables. While they can contain joined or filtered information from transparent tables, the direct nature of a transparent table makes it a primary choice for effectively implementing search helps. This is crucial for achieving performance efficiency and reliability in search results.