Database Error Messages

OCI-12961

cannot open database in read/write mode on a read-only instance

Cause

An attempt was made to open the database on a read-only instance under the following two cases:

  1. User explicitly specified read/write option in the SQL command.
  2. User forgot to explicitly specify read-only in which case, read/write mode was assumed by default.

Action

Specify the open mode as read-only.