Not string lengths, but definitely other things. For example, Oracle is notorious for only allowing 1000 columns per table: https://asktom.oracle.com/pls/askto

Not string lengths, but definitely other things. For example, Oracle is notorious for only allowing 1000 columns per table: https://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:53174778859588 https://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUE... They bumped it up to 1000 from 255 a few years ago. It was a major engineering effort to support that. It's unlikely that they will be willing to do it again.