How to find out why the status of a spid is suspended? What resources the spid is waiting for?

Question

I run EXEC sp_who2 78 and I get the following results:

Answer 1

I use sp_whoIsActive to look at this kind of information as it is a ready made free tool that gives you good information for troubleshooting slow queries:

How to Use sp_WhoIsActive to Find Slow SQL Server Queries

With this, you can get the query text, the plan it is using, the resource the query is waiting on, what is blocking it, what locks it is taking out and a whole lot more.

Much easier than trying to roll your own.