Here is the database I'm using: <https://drive.google.com/file/d/1ArJekOQpal0JFIr1h3NXYcFVngnCNUxg/view?usp=sharing>

I'm trying to create a query to output the academics (acnum) who are **ONLY**
interested in "Data" (descrip) fields.

I tried this:

```
select acnum
from interest
where upper(descrip) like '%DATA%';

```

It partly works, it finds the academics(acnum) that are interested in fields(descrip) with 'Data' in their names, but it also lists the academics(acnum) that have other interests besides 'Data' fields, how do I find academics(acnum) that are interested **ONLY** in 'Data' fields(descrip)?

Thank you.