Msg 15138 The database principal owns a schema in the database, and cannot be dropped.

删除用户报错：

 

Msg 15138, Level16, State 1, Line 1

The database principal owns a schemain the database, and cannot be dropped.

 

解决办法（SSMS）：

 

1.找到用户拥有的Schema

 



 

2.在Schema中找到db_owner将Schema Owner由test6改为dbo或者其他用户

 



 

3.删除用户test6

 

或者用下面的语句删除：

 

---查询用户test6拥有的Schema为db_owner

USE DBA;

 SELECT s.name

 FROM sys.schemas s

 WHERE s.principal_id=
USER_ID('test6');

 

--将db_owner Schema的Owner改为dbo

ALTER AUTHORIZATIONON
SCHEMA::db_ownerTO dbo;

 

---再次查询用户test6拥有的Schema为空

 SELECT s.name

 FROM sys.schemas s

 WHERE s.principal_id=
USER_ID('test6');

 

 --删除用户test6

 DROP USER [test6]