Question

I have a table like this:
Tb_server

ID 
5 
6 
7

Tb_upload

ID 
1 
2 
3 

I need a query which can update all the ID of Tb_server to max(Tb_upload.ID) + 1
So, the result on the Tb_server should be like this

Tb_server   
ID   
4   
5   
6

I am doing this in a shell script, so I can get the max(Tb_upload.ID) as a variable.
But what will be the query, using MySQL?

Answer 1

Try this:

UPDATE Tb_server, (SELECT @auto:=0) a 
SET ID = (SELECT MAX(ID) FROM Tb_upload) + (@auto:= @auto+1);