A header might be useful, although there’s likely better ways to (not) document what each sql statement does.

But inline documentation? I’d suggest trying to work around that. Here’s an explanation as to why: youtu.be/Bf7vDBBOBUA

If possible, and as much as possible, things should simply make enough sense to be self documenting. With only the high level concepts actually documented. Everything else is at risk to be outdated or worse, confuse

Self-documenting code only documents what the code does, not why it does it. I can look at a well written method that populates a list with random elements from another list and go “I know what that does!” but reading the code doesn’t tell me the reason this code was written or why alternatives weren’t chosen.

In the case of Rust, it goes even a step further when working with unsafe code. Sure I know what invariants need to be held for unsafe code to be sound, but not everyone does, and it isn’t always clear why a particular assumption made in an unsafe block (the list has at least 5 elements) can be made soundly.

…what the code does, not why it does it

This is my issue with “it’s self documenting code!”. I’m a maintenance coder. I deal with people’s code long after they’re dead (or ragequit). Some are for control systems.

if (waterPressure_psi > 500) raise PipeMayBurstException. Okay, we’re dealing with water pressure, in psi unit, and if it’s too high, it may break the piping. Self documenting!!

Except that our pipes are rated for 1000psi. SO WHY THE 500?! Do we have one or two sites - out of hundreds - with lower rated pipes? I can double performance if we raise the threshold to 700, well within the safety tolerance, but AM I GONNA KILL SOMEONE when they upgrade to our latest controller??