What are the different types of hierarchical databases in IMS?

Types of Hierarchical Databases in IMS

In IMS, there are several types of hierarchical databases that are commonly used. These include:

1. Root Segments: The highest level in the hierarchy, containing subsegments directly below.
2. Parent Segments: Segments that are directly below root segments, and may have one or more child segments beneath them.
3. Child Segments: Segments that are directly below parent segments and do not have any subsegments beneath them.
4. Sibling Segments: Segments that share the same parent segment and are at the same hierarchical level.

Understanding the different types of hierarchical databases in IMS can be crucial for effectively organizing and managing data within the system.