如何测试SQL Server数据库是否处于单用户模式

Question

在SQL脚本中，我如何测试SQL Server数据库是否处于单用户模式？

- EduXavier

Answer 1

您可以检查 sys.databases 视图...

if (SELECT user_access_desc FROM sys.databases WHERE name = 'YourDb') 
                                                            = 'SINGLE_USER'
    begin
       print 'It is in single user mode!'
    end

- Andomar

Answer 2

SELECT CASE WHEN (SELECT 1 FROM sys.databases 
                  WHERE name = 'YourDb' AND user_access_desc = 'SINGLE_USER') = 1 THEN 1 
                  ELSE 0 END AS SingleUserMode;

- Christoph