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Posted by Andy Brown on 22 February 2016
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Controlling administrator access to your model
In Analysis Services (tabular model) there are two types of role that you can create:
|Type of role||Relates to||Notes|
|Administrator||The Analysis Services instance||An Analysis Services instance has to have at least one administrator.|
|Database||An individual tabular database||You can create roles in either Management Studio or SSDT, controlling who can see which rows in which tables.|
This blog gives an overview of how to set the administrator of your Analysis Services instance.
Changing the default administrators
When you install SSAS Tabular, two accounts are automatically made administrators:
|Account||Property controlling this|
|Members of the local administrator group on the server on which SSAS is running||BuiltInAdminsAreServerAdmins|
|The Windows account on which the Analysis Services service is running||ServiceAccountIsServerAdmin|
You can prevent this behaviour by turning off either or both of the properties shown in the table above as follows. First display your instance's properties:
In Management Studio, right-click on an instance of SSAS and choose Properties.
Select the General tab:
Choose to look at General properties.
Now choose to show advanced properties:
Tick the box shown to reveal advanced properties.
You can now scroll down to change the two properties listed:
Change either or both of these properties to control who has administrator access to your Analysis Services instance.
You can only change the SSAS administrator in Management Studio (you have to specify at least one administrator when you install Analysis Services):
Connect to your Analysis Services database, then right-click on it in Management Studio and choose to change its properties.
You can now add an administrator as follows:
In the Security tab, click on the Add... button to add an administrator to your database.
I don't claim to be a SQL Server security expert, but hopefully this will have helped some overworked SQL Server administrator somewhere!