-1
SELECT
f_workorders_shipments.date,
f_inventory.id AS item_id,
f_workorders_shipments.inventory_code AS code,
f_inventory`.status,
f_inventory.type,
f_workorders.id AS order_id
FROM f_workorders
LEFT JOIN f_workorders_shipments
ON f_workorders.id = f_workorders_shipments.order_id
LEFT JOIN `f_inventory`
ON f_workorders_shipments.inventory_code = f_inventory.code
WHERE contact_id = "'.$_POST['id'].'"
AND inventory_code IS NOT NULL
ORDER BY due DESC'
얼마나 오랜 시간이 소요됩니까? – Arran
['EXPLAIN'] (http://dev.mysql.com/doc/refman/5.0/using-explain.html) 쿼리의 결과는 무엇입니까? – jensgram
mysql_real_escape_string을 사용하여 쿼리에 사용 된 사용자 입력 값을 삭제해야합니다. –