How to fix the Oracle error ORA-31403: change table string already contains a column string?

In this post, you’ll learn more about the Oracle ErrorORA-31403: change table string already contains a column string with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-31403: change table string already contains a column string

Reason for the Error ORA-31403: change table string already contains a column string

Issued ALTER_CHANGE_TABLE with an add operation but a column by this name already exists in the specified table.

How to fix the Error ORA-31403: change table string already contains a column string ?

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

Check the names and call the procedure again.

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