如何在执行sql命令时保持线程空闲

Question

So I have loooooooong stored procedure. It takes about 5-8 mins to execute. Say I create a an sqlCommand object and execute it via my my asp.net application, The thread will wait until the command execution is complete or command timeout duration.

Event If I another thread (thread_2) to accomplish this task, thread_2 will wait. I want to avoid waiting because command is going to take about 4-7 mins to execute.

Is there any way to do that ?

EDIT :

correct me If I am wrong, but I believe using the asynchronous version will also use thread_2. Asynchronous methods are just a wrapper to reduce threading code. [my belief]

I wanted some event driven mechanism, so that no thread is in use until the command execution is complete.

But now It feels that I am asking for too much... Am I ?

Answer 1

To make SQL calls asynchronous there are Async versions of all commands - ie SqlCommand.ExecuteNonQueryAsync

The second part is to make page rendering asynchronous to not use thread while execution of the SQL command is in progress. Both MVC and WebForms allow you to do that (MVC is easier). Note that if execution is as long as you said you may want to implement some sort of poling mechanism on the page instead of waiting for request competition to render results...

With some code you can wrap it in async -friendly code ( Using async / await ) to use in async MVC actions .

If you have to stick with WebForms/plain ASP.Net you will need to do more work to implement asynchronous pages, but it is still possible.