Home
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.
Administrator's GuideThe HCL OneDB™ Administrator's Guide provides the information required to administer HCL OneDB™.
Logging and log administration
Logical log
Log sbspaces and smart large objects
Sbspace logging
Logging for updated smart large objects

Logging for updated smart large objects

When you update a smart large object, the database server does not log the entire object. Assume that the user is writing X bytes of data at offset Y with logging enabled for smart large objects. The database server logs the following information:

If Y is set to the end of the large object, the database server logs X bytes (the updated byte range).
If Y is at the beginning or in the middle of the large object, the database server logs the smallest of these choices:
- Difference between the old and new image
- Before-image and after-image
- Nothing is logged if the before- and after-images are the same

Have feedback?
Google Analytics is used to store comments and ratings. To provide a comment or rating for a topic, click Accept All Cookies or Allow All in Cookie Preferences in the footer of this page.