1.2.1 HiRDB system definition types

The table below lists the types of HiRDB system definitions. The HiRDB administrator must specify values for the operands of the definitions.

Table 1-4 Types of HiRDB system definitions (for a HiRDB parallel server configuration)

Definition typeExplanation
System common definitionDefines the structure of the HiRDB system and common information. Each unit requires a system common definition. The contents of the individual system common definitions must be identical for all units. For details about the system common definition operands, see Chapter 2. System Common Definition.
Unit control information definitionDefines control information for a unit. Each unit requires a unit control information definition. For details about the unit control information definition operands, see Chapter 3. Unit Control Information Definition.
Server definitionsServer common definitionDefines default values for server definition operands. A server common definition is optional and is defined if needed. For details about the server common definition operands, see Chapter 4. Server Common Definition.
Front-end server definitionDefines the execution environment of a front-end server. Each front-end server requires a front-end server definition. For details about the front-end server definition operands, see Chapter 6. Front-End Server Definition.
Dictionary server definitionDefines the execution environment of a dictionary server. Each dictionary server requires a dictionary server definition. For details about the dictionary server definition operands, see Chapter 7. Dictionary Server Definition.
Back-end server definitionDefines the execution environment of a back-end server. Each back-end server requires a back-end server definition. For details about the back-end server definition operands, see Chapter 8. Back-End Server Definition.
UAP environment definitionDefines the execution environment of a UAP. UAP environment definitions can be defined as needed. Create the UAP environment definition in the unit in which a front-end server is located. If there are multiple front-end servers, create the definition for the front-end server to which the UAP environment definition is to be applied. For details about the UAP environment definition operands, see Chapter 9. UAP Environment Definition. You can create a maximum of 4,096 UAP environment definitions.
SQL reserved word definitionRequired when using the SQL reserved word deletion facility. Defines SQL reserved words. Create the SQL reserved word definition in the unit in which a front-end server is located. If there are multiple front-end servers, you must create the same SQL reserved word definition for all units in which the front-end servers are located. For details about the SQL reserved word deletion facility, see pd_delete_reserved_word_file operand.