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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.
Hold cursors that use PDQWhen hold cursors that are created by declaring the WITH HOLD qualifier have no locks, PDQ is enabled.

Hold cursors that use PDQ

When hold cursors that are created by declaring the WITH HOLD qualifier have no locks, PDQ is enabled.

PDQ will be set for hold cursors in the following cases:

Queries with Dirty Read or Committed Read isolation level, ANSI, and read-only cursor
Queries with Dirty Read or Committed Read isolation level, NON-ANSI, non-updateable cursor