Answer / guest

Cause: During ALTER DATABASE MOUNT, an attempt is being made
to mount a database on an instance in which a database is or
has previously been mounted.

Action: If you wish to mount the database, shutdown the
instance and then startup the instance and retry the operation.

Please add more information about this Error

ORA-01755: Must specify an extent number or block number

1 Answers  

---

ORA-10579: Can not modify control file during test recovery

1 Answers  

---

RMAN-06201: Deleted string objects

1 Answers  

---

PLS-00587: a static method cannot be invoked on an instance value

1 Answers  

---

PCB-00321: Implicit varchar host variables are an Oracle extension

1 Answers  

---

ORA-22851: invalid CHUNK LOB storage option value

1 Answers  

---

ORA-15065: hash collision for diskgroup names 'string' and 'string'

1 Answers  

---

ORA-16588: no more internal buffers

1 Answers  

---

ORA-13188: cell decode failed

1 Answers  

---

SQL-02135: Unable to initialize date format using supplied mask

1 Answers  

---

NNL-00932: Requests refused, type syntax mismatch: number

1 Answers  

---

NCR-03016: NCRO: Message has bad address

1 Answers  

---