I have the following table (example):

```
RESEARCH  | START_DATE          | END_DATE            | STATUS         
a         | 2013-11-10 19:00:00 | 2013-11-11 12:00:00 | Ready
b         | 2013-11-12 02:30:00 | 2013-12-01 13:30:00 | Ready
c         | 2013-11-05 07:00:00 | 2013-12-10 15:50:00 | Running

```

I need to change the status of researches from Ready to Running when START\_DATE is reached, and from Running to Finished when END\_DATE is reached.

Is there a way of doing this using only SQL Server 2008 R2 Express?