Question

I want to update table1 with the new minimum price for each specific accountId.

My query below works, I just want to automate it so that I don’t have to copy/paste the accountId for each query.

table1

client  accountId  price    
------------------------
John    1234       5000
Joe     12345      7000
Mary    123456     8000

table2

client  accountId  soldprice    
------------------------
John    1234       9000
Joe     22345      20000
Joe     22345      3000
Mary    0234       8000
Mary    0234       1000

Code:

UPDATE table1
   SET price = (SELECT MIN(soldPrice) 
                  FROM table2 
                 WHERE accountId = '22345')
 WHERE accountID = '22345'

Answer 1

This should do the trick. A SQL alias is used for the sub-query.

UPDATE table1
   SET price = (SELECT MIN(soldPrice) 
                  FROM table2 t2
                 WHERE t2.accountId=table1.accountID)