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IMS DB - Interview Questions
What is a hierarchy path in IMS DB?
In IMS DB (Information Management System Database), a hierarchy path refers to the sequence of segment names that lead from the root segment of a hierarchical database to a specific segment within that hierarchy.

In a hierarchical database structure, data is organized in a tree-like fashion, with parent segments having one or more child segments. Each segment represents a logical grouping of related data elements. The hierarchy path specifies the sequence of segments that must be traversed to reach a particular segment within the database.

For example, consider a hierarchical database representing customer information, where the root segment is "CUSTOMER" and it contains child segments such as "ORDER" and "PAYMENT". If you want to access a specific order belonging to a customer, you would need to specify the hierarchy path from the root segment to the "ORDER" segment for that customer. The hierarchy path might look something like this:
CUSTOMER -> ORDER?

This hierarchy path indicates that you start from the "CUSTOMER" segment and navigate to the "ORDER" segment to access information about the orders associated with that customer.
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