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有一家网店,通过样品ID进入该篮子的商品,并且篮子中的某些商品的数量必须不超过2个,因此一个篮子中可以包含多个商品一个身份证。
SELECT * FROM goods WHERE id IN (101842,101842,101838,101840)
但是,只有在样本单元格 3 中才能生成对样本的全部四个元素的请求吗?
如何在此 sql 查询中获取 4 个元素?
If you add an second condition for id you will have the second id. I had the same problem i resolved by this way. Be sure by looking in with mysqlbrowser if you have only one or more.