I need some opinions,PLS!

Hi! Does anyone know how long is your application stored in the university database? I applied 2 years ago to Brown and I got rejected :(…so I was wondering if I apply this fall again will they compare my previous application with the current one? I regret that i applied then, because i didn’t have stellar SAT scores…and i wrote the essay on the last minute…thing that obviously affected my application…What do you think, will they look down on my application because of the previous one??? thx.