Question

我一直有这个问题，因此无法找到解决方案，我需要使用union从多个表中选择以选择ID然后按日期对结果进行排序，我已经进行了此查询（并且它曾用于较旧的mysql版本）

(SELECT MAX(id),UNIX_TIMESTAMP(date) AS date,stock_id, 'Purchase' as type FROM stock_entries WHERE type='entry' GROUP BY stock_id)
                UNION
                (SELECT MAX(id),UNIX_TIMESTAMP(date) AS date,stock_id, 'Sales' as type FROM stock_entries WHERE type='sales' GROUP BY stock_id)
                UNION (select id,date, `order` AS stock_id, 'Inventory' as type FROM inventory_trans)
                ORDER BY date ASC

我想要的是，我每次生成一个ID，还有一种类型，类型是购买或销售或库存，所有结果应按日期排序（较旧 - >更新）来自两个表，每当我运行上述查询时，我都会遇到此错误：

1140: In aggregated query without GROUP BY, expression #3 of SELECT list contains nonaggregated column 'system.inventory_trans.order'; this is incompatible with sql_mode=only_full_group_by

如何使用此SQL查询来根据日期框架（日期ASC）获取我所需要的 - 旧结果 - ＆gt;更新的结果

谢谢

Answer 1

请试试这个查询。

SELECT * FROM
  (SELECT s.id,UNIX_TIMESTAMP(s.date) as date,s.stock_id,
       M.newType AS type
   FROM stock_entries s
   INNER JOIN
     (SELECT MAX(id) as maxid, stock_id,IF(type='entry','Purchase','Sales') as newType
      FROM stock_entries
      WHERE type='entry' OR type='sales'
      GROUP BY stock_id,newtype) as M
   ON M.maxid = s.id 
   )T1   
UNION ALL
  (select id,`date`, `order` AS stock_id, 'Inventory' as type FROM inventory_trans)
ORDER BY date ASC

sqlfiddle

从包含订单和组的多个表中进行选择

1 个答案: