Q
Problem solve Get help with specific problems with your technologies, process and projects.

Understanding x$tables

When and how should I use x$bh table? I'm actually looking for definitions of several X$tables. Do you have any recommendations for where to look them up?
I use the v$ views on the x$ tables. The Oracle v$bh view shows the contents of the data buffers, as well as the number of blocks for each type of segment in the buffer. This view is primarily useful for indicating the amount of table and index caching in multiple data blocks. Combining the v$bh view with dba_objects and dba_segments provides a block-by-block listing of the data buffer contents and indicates how well the buffers are caching tables and indexes.

I recommend getting a reference poster for the DBA views. Here is my favorite, from UNISYS and Rampant TechPress. It's free too!

http://www.dba-oracle.com/poster.htm

Dig Deeper on Oracle database design and architecture

Have a question for an expert?

Please add a title for your question

Get answers from a TechTarget expert on whatever's puzzling you.

You will be able to add details on the next page.

Start the conversation

Send me notifications when other members comment.

Please create a username to comment.

-ADS BY GOOGLE

SearchDataManagement

SearchBusinessAnalytics

SearchSAP

SearchSQLServer

TheServerSide.com

SearchDataCenter

SearchContentManagement

SearchHRSoftware

Close