Question

I am using sql server and tomcat for my web application
To refresh/clean my database i have to close tomcat for successful cleanup
Is there any way using java that i can clean my database without closing tomcat

Answer 1

You can kill external connections to your database using:

USE master;
GO
ALTER DATABASE dbname SET SINGLE_USER WITH ROLLBACK IMMEDIATE;
GO
USE dbname;
GO
-- now you can perform your "database cleanup" as you are the only
-- user allowed in.

When you are done your cleanup:

USE master;
GO
ALTER DATABASE dbname SET MULTI_USER;
GO

Now, what happens to the users who try to access the application during this time, and how tomcat reacts, <shrug>. Seems a lot cleaner to just shut tomcat down, depending on what you want the users to see during cleanup.