[notinventedhear]

Yes that's true, rlwrap gives you command history on top of sqlplus which makes it much more usable.

Actually, okcli started off as rlwrap with a complicated login file that queried the schema. But if you do that you can't use add a lexer for context-aware auto-complete which was one of the main goals, hence a new cli-tool using cx-oracle which gives way more control.

disclaimer: I'm the author.