SQL SERVER 2008 R2最大并发连接数修改为2后，SQL连接无法超过2个。

 

 

执行：

EXEC sys.sp_configure N'show advanced options', N'1'  RECONFIGURE WITH OVERRIDE
GO
EXEC sys.sp_configure N'user connections', N'0'
GO
RECONFIGURE WITH OVERRIDE
GO
EXEC sys.sp_configure N'show advanced options', N'0'  RECONFIGURE WITH OVERRIDE
GO
RECONFIGURE WITH OVERRIDE
GO