#PSTip Creating extended properties on database objects using SMO
Note: This tip requires PowerShell 2.0 or above.
You might have seen several articles on the web discussing about the SQL database extended properties from a self-documentation point of view. I believe that we can use extended properties for much more than self-documentation.
Here is an example. Lets say you make a change to a DB configuration as part of a request. If you add the details and date of the change to the DB then, you exactly know what to revert when you have to do it 3-4 weeks down the line.
So, let us see how we can add extended properties using PowerShell.
Add-Type -AssemblyName "Microsoft.SqlServer.Smo, Version=10.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91" $server = New-Object Microsoft.SqlServer.Management.Smo.Server $env:COMPUTERNAME $extproperty = New-Object Microsoft.SqlServer.Management.Smo.ExtendedProperty $extproperty.Parent = $server.Databases['sqlchow'] #needs smo object. $extproperty.Name = 'Change made' $extproperty.Value = 'Recovery Model set to BulkLogged' $extproperty.Create()
In this tip we are adding extended properties to a DB, you can add extended properties to other objects as well. For example, if you need to add extended properties to a table, the Parent is going to be: