GROUP BY 和 ORDER BY 子句聯合使用組合查詢

轉http://lzfhope.blog.163.com/blog/static/636399220092554045196/web SELECT g.product_id,g.promotion_price FROM sdb_starbuy_special_goods g LEFT JOIN sdb_b2c_products p on g.product_id = p.product_id WH
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