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IMS DB - Interview Questions
What is the limitation on the number of levels in a DL/I database?
In DL/I (Data Language/I), which is the access method for IMS (Information Management System) databases, there is a limitation on the number of levels that can be defined within the database hierarchy. The maximum number of levels in a DL/I database is 15.

This limitation applies to the hierarchical structure of the database, where segments are organized into parent-child relationships. Each level in the hierarchy represents a different level of nesting, with parent segments containing child segments. The maximum depth of this nesting, or the maximum number of levels, is 15.

Exceeding this limit can lead to issues with database performance, complexity, and manageability. Therefore, database designers and administrators must carefully consider the hierarchical structure of the database and ensure that it does not exceed the maximum allowable number of levels to avoid potential problems.
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