Build a portfolio of SQL projects, starting small and then moving to more complex ones. Showcasing these on platforms like ...

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 ...

Accurate data is imperative for an organization to conduct cost effective decision making, marketing promotions, mailings, database bloat impacting performance, storage and more. Like everything else, ...