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DB2 - What is the database descriptor?




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asked mar August 21, 2014 12:34 PM  

What is the database descriptor?


           

1 Answers



 
answered By Mswami   0  
Database Descriptor(DBD):

An internal representation of a DB2 for z/OS database definition, which reflects the data definition that is in the DB2 for z/OS catalog. The objects that are defined in a database descriptor are table spaces, tables, indexes, index spaces, relationships, check constraints, and triggers. A DBD also contains information about accessing tables in the database.

I.e., The database descriptor, DBD is the DB2 component that limits access to the database whenever objects are created, altered or dropped.
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