Query to Re-index Primary Key of MySQL Database

Question

I\'ve got a table in MySQL that has a Primary Key Column.

Lets say:

ID | Value
1  | One
2  | Two
6  | Three
8  | Four
9  | Five

How

Answer 1

Seems to me you have two options.

1) create a new table and copy the existing data over.

2) add another autoincrement field to the existing table, then delete the original column.

ALTER TABLE tableName ADD NewIdn INT NOT NULL AUTO_INCREMENT KEY