I'm having a verry strange problem. I am certain I have done nothing wrong in this line of code:
INSERT INTO
oc_address
(`cust_id`, `firstname`, `lastname`, `address_1`, `city`, `postcode`, `country_id`)
SELECT
(`cust_id`, `first_name`, `last_name`, `address`, `city`, `postalcode`, `country`)
FROM old_customer;
Still I get the message "#1241 - Operand should contain 1 column(s)"
Does anybony see something I don't see? I was thinking it may be caused by the _1 at address_1. But why would that be... I hope there is another explanation