Oracle's default date format is YYYY-MM-DD, WHY?

Question

Oracle\'s default date format is YYYY-MM-DD. Which means if I do:

 select some_date from some_table

...I lose the time portion of

Answer 1

This is a "problem" on the client side, not really an Oracle problem.

It's the client application which formats and displays the date this way.

In your case it's SQL*Plus which does this formatting.
Other SQL clients have other defaults.