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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.
Denormalize the data model to improve performanceYou might need to denormalize the data model to reduce overhead and optimize performance.
Expelling long stringsThe most bulky attributes are often character strings. To make the rows shorter, you can remove long strings from the entity table.
Move strings to a companion tableStrings that are less than half a page waste disk space if you treat them as TEXT data, but you can move them from the main table to a companion table.

Move strings to a companion table

Strings that are less than half a page waste disk space if you treat them as TEXT data, but you can move them from the main table to a companion table.

If you split a table into two tables, the primary table and a companion table, repeat the primary key in each table.