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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.
Improving individual query performanceYou can test, monitor, and improve queries.
Improve performance by adding or removing indexesYou can often improve the performance of a query by adding or, in some cases, removing indexes. You can also enable the optimizer to automatically fetch a set of keys from an index buffer.
Replace autoindexes with permanent indexesIf the query plan includes an autoindex path to a large table, you can generally improve performance by adding an index on that column. If you perform a query regularly, you can save time by creating a permanent index.

Replace autoindexes with permanent indexes

If the query plan includes an autoindex path to a large table, you can generally improve performance by adding an index on that column. If you perform a query regularly, you can save time by creating a permanent index.

If you perform the query occasionally, you can reasonably let the database server build and discard an index.