4.2.4 Optimizing the HiRDB operation environment

You can start HiRDB after completing the procedure described in 4.2.3 System generator operation. After that, execute the following procedures as required.

Organization of this subsection
(1) Modify HiRDB system definitions
(2) Set up a dictionary table

(1) Modify HiRDB system definitions

Modify the HiRDB system definitions as required. For details about how to modify HiRDB system definitions, see 5.2.4 Modifying HiRDB system definitions (excluding UAP environment definitions).

(2) Set up a dictionary table

Use the alter system statement of the database structure modification utility (pdmod) to set up data dictionary tables.

(a) Specifying the reference privilege

Define the reference privilege for data dictionary tables as required. For details about how to define the reference privilege for data dictionary tables, see the manual HiRDB Version 8 System Operation Guide.

(b) Defining the data type

You can change the data type of a data dictionary table from VARCHAR to MVARCHAR.

For details about how to change the data type, see the database structure modification utility (pdmod) in the manual HiRDB Version 8 Command Reference.