Cannot add a SQLCLR assembly to database, Msg 300

Question

I'm having trouble adding a SQLCLR assembly into a database, but a coworker of mine has no problem. Although we do have different levels of access, we can't figure out why I'm getting the error message that I'm getting.

Here's my code:

USE [mydatabase]
GO

CREATE ASSEMBLY [My.Assembly]
AUTHORIZATION [dbo]
FROM 'C:\Program Files\MyStuff\My.Assembly.dll'
WITH PERMISSION_SET = UNSAFE
GO

And here's my error:

Msg 300, Level 14, State 1, Line 3
UNSAFE ASSEMBLY permission was denied on object 'server', database 'master'.

Thoughts?

Answer 1

I think you have a problem because the login is not a member of sysadmin. MSDN says, "If PERMISSION_SET = UNSAFE is specified, membership in the sysadmin fixed server role is required"

Update

As it was mentioned in the comment, it could be and should be done without assigning logins to sysadmin role . Unfortunately , I can't delete this answer since it's accepted, so in case anyone still has SQLServer 2008 , I recommend to refer to http://stackoverflow.com/a/38213540/577765 that has detailed explanation