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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.
Queries and the query optimizerThese topics describe query plans, explain how the database server manages query optimization, and discuss factors that you can use to influence the query plan. These topics also describe performance considerations for SPL routines, the UDR cache, and triggers.

Queries and the query optimizer

These topics describe query plans, explain how the database server manages query optimization, and discuss factors that you can use to influence the query plan. These topics also describe performance considerations for SPL routines, the UDR cache, and triggers.

The parallel database query (PDQ) features in the database server provide the largest potential performance improvements for a query. Parallel database query (PDQ) describes PDQ and the Memory Grant Manager (MGM) and explains how to control resource use by queries.

PDQ provides the most substantial performance gains if you fragment your tables as described in Fragmentation guidelines.

Improving individual query performance explains how to improve the performance of specific queries.

Data warehouse queries and performance issues related to dimensional databases are described in the HCL OneDB™ Data Warehouse Guide.

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