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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.
LockingThe database server uses locks, which can affect concurrency and performance. You can monitor and administer locks.
LocksA lock is a software mechanism that you can set to prevent others from using a resource. You can place a lock on a single row or key, a page of data or index keys, a whole table, or an entire database.

Locks

A lock is a software mechanism that you can set to prevent others from using a resource. You can place a lock on a single row or key, a page of data or index keys, a whole table, or an entire database.

Additional types of locks are available for smart large objects. For more information, see Locks for smart large objects.

The maximum number of rows or pages locked in a single transaction is controlled by the total number of locks configured. The number of tables in which those rows or pages are locked is not explicitly controlled.