我尝试之前导出为CSV格式,但即时通讯未能获得正确的数据来生成数据之前生成的数据。SQL JOIN语句 - 出口
Table : products
products_id | products_image
2 | a.jpg
1786 | b.jpg
Table : product_description
products_id | products_description | language_id
2 | BM description | 6
1786 | BM description | 6
1786 | CN description | 4
1786 | EN description | 1
我试图让输出是这样的:
products_id | products_image | p_description_6 | p_description_4 | p_description_1 |
2 | a.jpg | BM description | | |
1786 | b.jpg | BM description | CN description | EN description |
我当前的查询之下,但此查询未能产生在同一行PRODUCT_DESCRIPTION:
$select = "SELECT p.*, pd.* FROM products p LEFT JOIN product_description pd on p.products_id=pd.products_id group by p.products_id";
可能不同'language_id'固定或可变的数量? – 2013-04-09 03:02:34
language_id固定.. – rusly 2013-04-09 03:04:37