Starting from Oracle 10G, creating the database can be as simple as this:
SQL> create database;It's not a surprise that this feature was somewhat advertised here and there. However, what was missing in these advertisements is this:
SQL> select name, decode(bitmapped, 0, 'DMT', 'LMT')For you see, create database will make your SYSTEM tablespace to be dictionary managed by default. I don't really know if there are any reasons for this and since everything else will default to LMT, this should not be a big deal for most of you anyway. Just don't forget that SYSTEM hosts objects like AUD$ (audit log), FGA_LOG$ (fine-grained audit log) or NCOMP_DLL$ (natively compiled objects) which could grow to a fairly large number of extents.
order by name; 2 3
I was a bit surprised watching this relic appear even when you do this in 188.8.131.52...