ORA-

ORA-15235: diskgroup mount mode conflicts with existing mount

PROBLEM: While mounting a diskgroup ...

ORA-15027: active use of diskgroup precludes its dismount

While dismounting a diskgroup, ...

ORA-02266: unique/primary keys in table referenced while truncating table

While truncating a table in...

ORA-04036: PGA memory used by the instance exceeds PGA_AGGREGATE_LIMIT

We hav...

ORA-24247: network access denied by access control list (ACL)

While sending mail usin...

ORA-01450: maximum key length (6398) exceeded

While creating a composite index in the oracle data...

ORA-56935: existing datapump jobs are using a different version

While importing in an oracle 1...

ORA-01123: cannot start online backup; media recovery not enabled

While putting the...

ORA-00027: cannot kill current session

ORA-00...

ORA-29516: Aurora assertion failure: Assertion failure

If the java component is corrupted, then while...