Problem : Cannot resolve the collation conflict between ...

Hi

I want select a column from another database base on my current field on current database.

here is my query :

select ms.ServiceID, ms.ServiceName, ms.CoefficientFixedService,
	(select Services_Name from MpAdmisson..IAServices_Table where Services_DepartmentID=24 and Services_Name=ms.ServiceName) as N'MpServiceName'
from MedicalServices ms
	join MedicalCategories mc on ms.MedicalCategorizationID=mc.MedicalCategorizationID
	join Zones z on mc.ZoneID=z.ZoneID
where z.ZoneID=24

but I'm facing this error :

http://www.codeproject.com/KB/codegen/DatabaseHelper.aspx