So, to answer your question, canned corn can last for a pretty long time if stored properly. But, it's not invincible! Keep an eye on it, and make sure to store it in a cool, dry place.
And hey, even if it's been a few years, it's not the end of the world! Just check the can for any signs of damage or swelling, and you're good to go.
It's kind of like that old adage: "if it looks good, smells good, and tastes good, it's probably okay!" Not always the most scientific approach, but it works in a pinch!
