Hierarchical Database

• Data is organised in tree structure as parent and child
• Support one-to-many relationship - parent can have multiple children but a child can have only one parent
• Because of one-to-many relationship, data is systematically accessible. Parent have pointers to their children
• To get to a low-level table start from the root and work all the way down
• Many-to-many relationship is not supported
• Windows based directory management system is one of Hierarchical database.