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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.
Table performance considerationsSome performance issues are associated with unfragmented tables and table fragments.
Managing extentsAs you add rows to a table, the database server allocates disk space in units called extents. Each extent is a block of physically contiguous pages from the dbspace. Even when the dbspace includes more than one chunk, each extent is allocated entirely within a single chunk, so that it remains contiguous.
Choosing table extent sizesWhen you create a table, you can specify extent sizes for the data rows of a table in a dbspace and for each fragment of a fragmented table, and the smart large objects in an sbspace. The database server calculates extent sizes for smart large objects in sbspaces.

Choosing table extent sizes

When you create a table, you can specify extent sizes for the data rows of a table in a dbspace and for each fragment of a fragmented table, and the smart large objects in an sbspace. The database server calculates extent sizes for smart large objects in sbspaces.