https://sqlserver.code.blog/2019/12/18/realcase-failed-to-upgrade-sql-server-2016-sp2-cu11-installation-success-or-error-status-1648/
Realcase: Failed to upgrade SQL Server 2016 SP2 CU11. (Installation success or error status: 1648)
原文：https://www.cnblogs.com/stswordman/p/12059051.html
