我对这2个问题很生气,我无法解释自己为什么会返回81行和其他0.有人可以帮助我吗?两个非常相似的查询返回不同的结果,为什么?
-- Working
SELECT * FROM
boat_standard_specification_items AS BoatStandardSpecificationItem JOIN standard_specification_items AS StandardSpecificationItem
ON(BoatStandardSpecificationItem.standard_specification_item_id = StandardSpecificationItem .id)
-- Not working
SELECT * FROM
`boat_standard_specification_items` AS `BoatStandardSpecificationItem` JOIN `standard_specification_items` AS `StandardSpecificationItem`
ON (`BoatStandardSpecificationItem`.`standard_specification_item_id` = 'StandardSpecificationItem.id')
我在Windows操作系统上,如果可以以任何方式
结果是什么? – 2012-02-13 05:12:26
我不认为结果是在这里的问题,问题是我得到了<81 rows>结果和<0 rows>结果,这意味着查询不起作用 – 2012-02-13 05:27:56
你有我的答案如下:-) – 2012-02-13 05:35:26