Data Storage Description Language

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The Data Storage Description Language (DSDL, more rarely Data Storage Definition Language ) is a storage description language that was developed by the Data Base Task Group (DBTG) to describe network databases .

It takes on the description of the physical data organization and defines the access paths to the files, as well as their partitioning and allocation on the actual data carrier. Furthermore, DSDL defines the indexes for searching in the data, extends the operating system functionality for storing data and manages the free and occupied memory areas.

The popular database language SQL for relational databases has no equivalent for the DSDL.


  • Mertens, Bodendorf, König, Picot, Schumann, Hess: Basics of business informatics . 9th edition. Springer, 2004, ISBN 3-540-23411-X .