Database Error Messages

ORA-17528

A read-only file or a file opened read-only cannot be written to: string.

Cause

The file was read-only or was opened read-only and an attempt was made to write to the file, or there was an internal error.


Action

If the file is a parent of a snapshot, then you cannot open read/write, drop or unplug the database. Otherwise, look at the trace file and contact Oracle Support Services.