Category: Data

When working with SQL, one of the most fundamental things you’ll need to do is filter data from your database. Filtering allows you to retrieve...

Writing your first SQL query can feel like a big leap, but trust me, it’s much simpler than it seems once you get used to...

I recently had a situation where I needed to copy file names from a folder to Excel worksheet. I thought this would cause a headache...

If you have multiple CSV files and want to combine them into one, you know it’s not easy to merge them manually, one by one....

Introduction Welcome to the second part of my SQL tutorial series! Last time I talked about what is SQL and what is it used for....