Monday 18 March 2013

(Microsoft SQL Server, Error: 15138)


The database principal owns a schema and cannot be dropped. (Microsoft SQL Server, Error: 15138)

This problem normally occurs when a user owns a schema and you are trying to delete the user.
There are many workarounds for these and one among the workarounds is


  • In MS SQL Management Studio "Object Explorer" and Expand the [databasename] / Security.
  • Click on Schemas.
  • In summary window, determine which Schema(s) are owned by the user and either change the owner or remove the Scheme(s). [If they are system schema(s), I suggest changine them to 'dbo' or something appropriate.

The user can then be deleted.