Maps Logical Definition to Physical
A database name table is an entity associated with a DMCL that is used to map the logical database definition to one or more segments in the DMCL.
Contents of a Database Name Table
The definition of a database name table includes one or more database names. Each database name identifies the segments to be accessed as part of the logical database. A database name table may also include one or more database group declarations.
Group Names for Dynamic Routing
In a parallel sysplex environment, a database name table may also define database groups (DBGROUPs) which represent collections of central versions to which requests can be dynamically routed. A database request can be serviced on any central version whose database name table includes the database group to which the request is directed.
Database Name Table Used at Runtime
A database name table is used by CA IDMS/DB at runtime to access physical database definitions. It must exist as a load module in a load library.
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