How to fix the Oracle error ORA-39726: unsupported add/drop column operation on compressed tables?

In this post, you’ll learn more about the Oracle ErrorORA-39726: unsupported add/drop column operation on compressed tables with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-39726: unsupported add/drop column operation on compressed tables

Reason for the Error ORA-39726: unsupported add/drop column operation on compressed tables

An unsupported add/drop column operation for compressed table was attemped.

How to fix the Error ORA-39726: unsupported add/drop column operation on compressed tables ?

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

When adding a column, do not specify a default value. DROP column is only supported in the form of SET UNUSED column (meta-data drop column).