Mysql Query：自动递增操作并在外部表上更新

Question

My tables are :

orders(orderID,orderDesc)
orderscoding(orderscodingID,orderID,codeA)

I have around 230 records for both tables.

I want to alter the ( orderID ) auto-increment from 1,2,3,4,5 ..... to 100001,10002,10003,10004,10005 and reflect it on the related table , is this possible?

So basically this will not work, as it is for new insert (but I want to modify existing records):

ALTER TABLE orders AUTO_INCREMENT=100001;

Answer 1

If you want to update existing orderID s, you can do like this

UPDATE orders SET orderID = orderID + 10000

All existing orderID will be incremented by 10000 with this query. So, 1 will become 10001, 2 will be 10002 and so on...

Do the same for orderscoding table to keep it synced with orders table (do the same if any more tables are synced to orderID .)

UPDATE orderscoding SET orderID = orderID + 10000