This means that there is likely to be considerable data duplication when using a hierarchical database.

The hierarchical database only allows downward access paths, and a member at one level cannot be an owner of a record at a higher level.

IBM has its own proprietary relational and hierarchical databases.

They borrow aspects of navigational databases, hierarchical databases and relational databases.

IMS is classified as a hierarchical database.

Globals refer directly to items stored in the hierarchical database.

A joint hierarchical database and information management system with extensive transaction processing capabilities.

The first hierarchical databases were developed for automating bills of materials for manufacturing organizations in the early 1960s.

No backward movement is possible/allowed in the hierarchical database.

The Windows Registry is a hierarchical database that stores configuration settings and options for the operating system.