Good Day I created a table, NEW_TABLE , from some of another table columns

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Editorial Team

Asked: June 8, 20262026-06-08T11:35:08+00:00 2026-06-08T11:35:08+00:00

Good Day

I created a table, NEW_TABLE, from some of another table columns ,OLD_TABLE.

I added a new column ID of type double

I want to fill the values of the ID column with unique values and then make it the the NEW_TABLE key.

Is there a way to do this in MySQL with a query or a set command?

I tried something like this:

Insert into NEW_TABLE
(select  generateId() , col1, col2 
 from ORIGINAL_TABLE)

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Editorial Team · Answer 1 · 2026-06-08T11:35:09+00:00

Editorial Team

try this:

Insert into NEW_TABLE
(select   @row := @row + 1 as generateId, col1, col2 
 from ORIGINAL_TABLE, (SELECT @row := 0)row)

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