Both as a DBA and developer, I've had plenty of immediate, this-is-broken, fix-it-quickly issues. Usually, I, or someone else, wrote some bad code and somehow got it deployed. I mean, I do test things, and I would (probably) never change code after I'd tested it to fix that one little annoying thing, like the formatting. I'd (almost) never do that, and I'm sure you wouldn't either.

Yet somehow bugs slip in at times.

Those are the acute issues, and they can be hard to fix at times, but often we can reproduce the problem in development and build a fix. Sometimes we even spot the issue quickly and just fix it in production. I'm sure you never do that, but I have had that experience myself a few times.

Read the rest of The Slow Growing Problems