SQL SERVER 2016修改“User Mapping"时报错：
TITLE: Microsoft SQL Server Management Studio
------------------------------
Rename failed for User ‘dbo‘. (Microsoft.SqlServer.Smo)
For help, click: https://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&ProdVer=16.100.37971.0&EvtSrc=Microsoft.SqlServer.Management.Smo.ExceptionTemplates.FailedOperationExceptionText&EvtID=Rename+User&LinkId=20476
------------------------------
ADDITIONAL INFORMATION:
An exception occurred while executing a Transact-SQL statement or batch. (Microsoft.SqlServer.ConnectionInfo)
------------------------------
Cannot alter the user ‘dbo‘. (Microsoft SQL Server, Error: 15150)
For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft%20SQL%20Server&ProdVer=13.00.5026&EvtSrc=MSSQLServer&EvtID=15150&LinkId=20476
------------------------------
BUTTONS:
OK
------------------------------
解决方法：
以SA登录SQL SERVER STUDIO,执行下面的命令：
use testdatabaseName
EXEC sp_changedbowner ‘sa‘,‘true‘
Rename failed for user 'dbo' -MS SQL ERROR 15150
原文：https://www.cnblogs.com/rusking/p/13095605.html
