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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.
Performance monitoring and the tools you useYou can use performance monitoring tools to create a performance history, to monitor database resources at scheduled times, or to monitor ongoing transaction or query performance.
Monitor sessions and queriesMonitoring sessions and threads is important for sessions that perform queries as well as sessions that perform inserts, updates, and deletes. Some of the information that you can monitor for sessions and threads allows you to determine if an application is using a disproportionate amount of the resources.
Using the SET EXPLAIN statementYou can use the SET EXPLAIN statement or the EXPLAIN directive to display the query plan that the optimizer creates for an individual query.

Using the SET EXPLAIN statement

You can use the SET EXPLAIN statement or the EXPLAIN directive to display the query plan that the optimizer creates for an individual query.

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For more information, see Display the query plan.