SQL Server 2005 – Dynamic Management Views & FunctionsWhitney WeaverSenior Consultantwhitneyw@magenic.com

Discussion Overview

• History• Architecture• Scope • Permissions• Organization• Demo• Questions

History

• Added to SQL Server 2005 based on customer demand for greater visibility into their instance

• A few dozen people in virtual team put DMVs together

• Will continue to be driven by customer need– Roughly 30 new DMVs in SQL 2008

Discussion Overview

• History• Architecture• Scope • Permissions• Organization• Demo• Questions

Architecture

• Dynamic metadata made available by SQL 2005 SQLOS

• Resource database (mssqlsystemresource)

• Views and Functions

• Copy of DMV objects in each user database

Discussion Overview

• History• Architecture• Scope • Permissions• Organization• Demo• Questions

Scope

• Two scopes for DMVs– Server– Database

• Sys schema (sys.dm_*)

• Data cleared on server restart

• Some DMVs can be reset without restart

Discussion Overview

• History• Architecture• Scope • Permissions• Organization• Demo• Questions

Permissions

• SELECT permission on objects

• VIEW SERVER STATE

• VIEW DATABASE STATE

Discussion Overview

• History• Architecture• Scope • Permissions• Organization• Demo• Questions

OrganizationCommon Language Runtime I/O

Database Mirroring Query Notifications

Database Replication

Execution Service Broker

Full-Text Search SQL Server OS

Index Transaction

Discussion Overview

• History• Architecture• Scope • Permissions• Organization• Demo• Questions

Demo

• Show me the code!

Resources

• Blogshttp://www.sqlskills.com/blogs/conor/http://sqlblog.com/blogs/louis_davidson/

• BOLhttp://technet.microsoft.com/en-us/library/ms188754.aspx

• Paul MestemakerProgram Manager, Microsoft SQL Server

Questions

• ??

Contact Information

• My emailwhitneyw@magenic.com

• My bloghttp://blog.magenic.com/blogs/whitneyw/default.aspx