"Experienced programmer" can be a hindrance to learning SQL, depending. You will need to set aside all your imperative, procedural habits. To use SQL effective

"Experienced programmer" can be a hindrance to learning SQL, depending. You will need to set aside all your imperative, procedural habits. To use SQL effectively you need to think in terms of sets, unions, intersections, and declarative statements. If you find yourself thinking "row at a time" you might need to stop yourself. It's not always wrong, but a common mistake many programmers make when first learning SQL.