How to add the new column to a specific position


My table looks like Fallows.

Select * from company

11001An Inc.Long name A Inc.
11002B Inc.Long name B Inc.
11003C Inc.Long name C Inc.
21004D Inc.Long name D Inc.
21005E Inc.Long name E Inc.
21006F Inc.Long name F Inc.


How to get there.

I tried like Fallows alter company table add company_location varchar2 (100) after company_short_name;

but this query shows the error

ORA-01735: invalid option of ALTER TABLE

If the query I've tried is correct?

Give me your suggestions.

Thanks in advance.

As long as you're on 11 GR 2 or lower, it will not work.

There is no Clause "AFTER"in the alter table do not add column."

You have the chance to use dbms_redefinition (when no interruption of service is possible) or manually create a new table with the columns in the order you need and then migrate the data and then drop the original and rename a new.

In case you are already on 12 c, you have a chance to add the column to the end and then make visible columns and invisible status in the right order. This way your column will get to the position that you want it to be.

Kind regards


Tags: Database

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