How to fix the Oracle error ORA-01645: previous attempt to make read write is half complete?

In this post, you’ll learn more about the Oracle ErrorORA-01645: previous attempt to make read write is half complete with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-01645: previous attempt to make read write is half complete

Reason for the Error ORA-01645: previous attempt to make read write is half complete

A failure while making the tablespace read write left it read only, but the checkpoint was advanced. The tablespace will not be useable after a resetlogs if its files are offline.

How to fix the Error ORA-01645: previous attempt to make read write is half complete ?

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

Repeat the command to make the tablespace read write.