Question

Could you please help me to make this query works

SELECT *
FROM `SC_orders`
LEFT  JOIN `SC_customer_reg_fields_values`   using(customerID)
WHERE (`statusID` = 2 OR `statusID` = 3 OR `statusID` = 21 OR `statusID` = 25 OR `statusID` = 26) AND DATE(order_time) > '2012-12-01 00-00-00'
LEFT JOIN `SC_ordered_carts`
ON orderID = orderID
GROUP BY orderID

I try to combine information from 3 tables in one output. This query works fine without last LEFT JOIN and Grouping. Where is my mistake?

Answer 1

The where needs to be after the last join. also, the second ON clause is ambiguous and I think the group by is unnecessary since you don’t have any aggregate functions:

SELECT *
FROM `SC_orders`
LEFT JOIN `SC_customer_reg_fields_values`   using(customerID)
LEFT JOIN `SC_ordered_carts` using(orderID)
WHERE (`statusID` = 2 OR `statusID` = 3 OR `statusID` = 21 OR `statusID` = 25 OR `statusID` = 26) AND DATE(order_time) > '2012-12-01 00-00-00'