How to fix the Oracle error ORA-14284: one or more of table’s subpartitions reside in a read-only tablespace?

In this post, you’ll learn more about the Oracle ErrorORA-14284: one or more of table’s subpartitions reside in a read-only tablespace with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-14284: one or more of table’s subpartitions reside in a read-only tablespace

Reason for the Error ORA-14284: one or more of table’s subpartitions reside in a read-only tablespace

User issued ALTER TABLE statement attempting to modify an existing VARCHAR2 (or VARCHAR) column to be of type CHAR (or CHARACTER), increase length of an existing CHAR (or CHARACTER) column, or add a column with user-specified default for a table one or more subpartitions of which reside in read-only tablespaces, which is illegal

How to fix the Error ORA-14284: one or more of table’s subpartitions reside in a read-only tablespace ?

You can fix this error in Oracle by following the below steps

Avoid performing aformentioned operations on a partitioned table one or more subpartitions of which reside in read-only tablespaces