SQLServer 复制和数据库镜像 详细配置部署

SQLServer 复制和数据库镜像 详细配置部署 https://blog.csdn.net/kk185800961/article/details/46369577
 SQL Server扫盲系列——镜像篇 https://blog.csdn.net/dba_huangzj/article/details/35995083 ALTER DATABASE (Transact-SQL) Database Mirroring
https://docs.microsoft.com/en-us/sql/t-sql/statements/alter-database-transact-sql-database-mirroring?view=sql-server-2017

USE [master]   
95.GO   
96.--主体执行:设置为高安全模式（同步） 
97.ALTER DATABASE [MyDB] SET SAFETY FULL   
98. 
99.--主体执行:设置为高性能模式（异步） 
100.ALTER DATABASE [MyDB] SET SAFETY OFF   
101. 
102.--主体执行:主体与镜像切换 
103.ALTER DATABASE [MyDB] SET PARTNER FAILOVER;   
104. 
105. 
106.ALTER DATABASE [MyDB] SET PARTNER RESUME;     --恢复镜像   
107.ALTER DATABASE [MyDB] SET PARTNER FAILOVER;   --切换主备   
108.ALTER DATABASE [MyDB] SET PARTNER FORCE_SERVICE_ALLOW_DATA_LOSS;  --强制恢复镜像   
109.ALTER DATABASE [MyDB] SET ONLINE;     --在线数据库   
110. 
111. 
112.select * from sys.certificates   
113.select * from sys.endpoints   
114.select * from sys.database_mirroring_endpoints   
115.select * from sys.database_mirroring    
116.select * from sys.database_mirroring_witnesses