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Even if you could put a trigger on a DMV I don't think it would ever fire because they aren't updateable. DMVs are purely derived data.<br />
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What are you tring to achieve? Maybe a DDL trigger will do the job:<br />
<a href="http://technet.microsoft.com/en-us/library/ms175941.aspx" rel="ugc">http://technet.microsoft.com/en-us/library/ms175941.aspx</a><br />

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Even if you could put a trigger on a DMV I don't think it would ever fire because they aren't updateable. DMVs are purely derived data.

What are you tring to achieve? Maybe a DDL trigger will do the job:
http://technet.microsoft.com/en-us/library/ms175941.aspx [http://technet.microsoft.com/en-us/library/ms175941.aspx]


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I want to see how long an entry stays in the dm_exec_cached_plans DMV. Effectively seeing how long a plan is cached for
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I want to see how long an entry stays in the dm_exec_cached_plans DMV. Effectively seeing how long a plan is cached for

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can you put a trigger on a DMV?
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trigger on a dynamic management view

Microsoft SQL Server 2008 is a suite of relational database management system (RDBMS) products providing multi-user database access functionality.Component services include integration (SSIS), reporting (SSRS), analysis (SSAS), data quality, master data, T-SQL and performance tuning. Major improvements include the  Always On technologies and support for unstructured data types.

Microsoft SQL Server 2008

Microsoft SQL Server is a suite of relational database management system (RDBMS) products providing multi-user database access functionality.SQL Server is available in multiple versions, typically identified by release year, and versions are subdivided into editions to distinguish between product functionality. Component services include integration (SSIS), reporting (SSRS), analysis (SSAS), data quality, master data, T-SQL and performance tuning.

Microsoft SQL Server

Microsoft SQL Server 2005 is a suite of relational database management system (RDBMS) products providing multi-user database access functionality.Component services include integration (SSIS), reporting (SSRS), analysis (SSAS), data quality, master data, T-SQL and performance tuning. It includes support for managing XML data and allows a database server to be exposed over web services using Tabular Data Stream (TDS) packets encapsulated within SOAP (protocol) requests.