Total number of DML and DDL operations performed in a table in oracle I would like to know the total number of operations (DDL and DDL) performed on a table in oracle dabatase since it was created. 

Is there a query for it?
If your database has been running in ARCHIVELOG mode and supplemental logging is enabled, you can historically mine the archive logs using Log Miner.

There's a nice demo on this page.

May I ask why you want the total number of operations? The numbers by themselves are meaningless.