Step 2: Prepare and Install the CA IDMS/DB Database

To prepare and install the CA IDMS/DB database, you must define the following database elements:

Schema— Define the records and sets that best represent the VSAM data set in the CA IDMS/DB schema. Schema definitions are discussed in CA IDMS/DB Schema and VSAM File Correspondences.
DMCL modules— Define and link edit DMCL modules into a load library so these modules are available at runtime. Information on loading DMCL modules can be found in CA IDMS Database Administration Guide.
Subschemas— Define one or more subschemas, which can reside in either the dictionary load area or a load library. (Local mode requires the subschema to reside in a load library.)
For information on defining a subschema, and on transferring load modules to a load library, refer to CA IDMS Database Administration Guide.

Note: All areas that will be accessed by CA IDMS VSAM Transparency must be given a default usage mode. This usage mode must be defined in the subschema. If you are going to update the database through CA IDMS VSAM Transparency, be sure the default usage mode is an update usage mode.