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AdministeringIn addition to administering the database server, you can tune performance, replicate data, and archive data.
System administrationThese topics contain concepts, procedures, and reference information for database and database server administrators to use for managing and tuning HCL OneDB™ database servers.
Performance GuideThe HCL OneDB™ Performance Guide describes how to configure and operate your HCL OneDB™ database server to improve overall system throughput and to improve the performance of SQL queries.
Parallel database query (PDQ)You can manage how the database server performs PDQ and you can monitor the resources that the database server uses for PDQ.
Database server operations that use PDQHCL OneDB™ processes some types of SQL operations that the database server processes in parallel. However some situations limit the degree of parallelism that HCL OneDB™ can use.
Parallel user-defined routines If a query contains a user-defined routine (UDR) in an expression, the database server can execute a query in parallel when you turn on PDQ.

Parallel user-defined routines

If a query contains a user-defined routine (UDR) in an expression, the database server can execute a query in parallel when you turn on PDQ.

The database server can perform the following parallel operations if the UDR is written and registered appropriately:

For more information about how to enable parallel execution of UDRs, see ids_prf_668.html#ids_prf_668.