Demon.

摘要： /****** Script for SelectTopNRows command from SSMS ******/ SELECT B.[GOODSID] ,A.INDUSTRY_CNAME ,C.[PRODUCTTYPE_NAME] ,'TMALL' AS "??" ,D.[BRAND_NAME] ,E.[PROVI... 阅读全文

摘要： 例如下表格：表名：fruit 当我想获取Name不重复的数据，结果如下 如果查询时用 distinct，则无效果，只能用group by. select * from fruit where id in (select min(id) from fruit group by Name); selec 阅读全文