Many applications have the evil feature that asks programmers to create a "Query tool" to allow end users (who don't know SQL or the exact schema of the DB) to create their own queries to look up ...

Although tables in SQL databases typically contain massive amounts of data, they’re not always in a format that can be used by data analysts. The data records in these tables need to be filtered ...

A common SQL habit is to use SELECT * on a query, because it’s tedious to list all the columns you need. Plus, sometimes those columns may change over time, so why not just do things the easy way? But ...