How large is the Oracle Database? SQL Code 1col "Database Size" format a20 2col "Free space" format a20 3col "Used space" format a20 4select round(sum(used.bytes) / 1024 / 1024 / 1024 ) || ' GB' "Database Size" 5 ,round(sum(used.bytes) / 1024 / 1024 / 1024 ) - 6 round(free.p / …