Question

Say I have a mysql table, and I have a column of type enum and that column has defined set of values like enum('a','b','c','d').

How would i add a value of 'e' to this set using alter table statement?

And I want to append the new value to the end of it using CONCAT.

Answer 1

Unfortunately, you need to re-list all the existing enum values when adding a new value to the the enum.

ALTER TABLE mytable MODIFY COLUMN mycolumn ENUM('a','b','c','d','e');

You don’t really want to use CONCAT() in this situation.