Oracle 10g, the worlds frst, (and only)true grid database server...
Oracle is great...
admitidly not as easy as MSSQL (by far the easiest to write and adminster).
Not even as easy as MySQL which sits between the two. but once you get to grips with it an figure it out it's actually not that bad (perhaps even refreshing) to use.
In my job, (as a network admin) I get to play wih lots of server programs,
Camers isn't completly right, (yes) we support Oracle databases for governmen agencies, but we also support them in much smaler companies, not noly is it thewords most powerfull database, it's also multi platform.
so for databases, ease of use
MSSQL > MySQL > Oracle
ease of administration
MSSQL > MySQL > Oracle.
sheer power and scalability
Oracle >> MSSQL > MySQL
resource use
Oracle > MSSQL > MySQL