This is some typical query in my case that worked literally for years (until the last build of MySQL 5.7): SELECT DISTINCT a.attr_one, a.attr_two, a.attr_three, b.attr_four FROM table_one a LEFT JOIN table_two b ON b.some_idx = a.idx ORDER BY b.id_order. And, indeed, if I now include b.id_order to the SELECT part (as MySQL suggests doing), then ... WebFeb 7, 2024 · This is because DISTINCT acts on both the columns in the SELECT clause and the column in the ORDER BY clause. This may cause unexpected results, especially in …
DISTINCT自动排序的问题-CSDN社区
WebJun 7, 2015 · MySQL で ORDER BY を指定しない時、SELECT結果並び順 の法則性に関するドキュメントは公開されているでしょうか? ・必要なら、ORDER BY を 指定した方が … WebJun 30, 2024 · Following is the query to select distinct order by id −. mysql> select Name from DemoTable -> group by Name -> order by max(Id) DESC -> limit 2; Output. This will produce the following output − ... family pet care center inc
Bug #99257 Inconsistent output and wrong ORDER BY Sorting for …
WebApr 15, 2024 · Order By sorting is wrong How to repeat: Steps to reproduce: 1. Load data_set.sql 2. Run the following query: SELECT DISTINCT t1.order_id, … Web仕事中にうっかりハマってしまった内容を中心に書いていきたいと思います。. 今回のテーマは 「MySQL - select文でorder by句が正しく効かない場合がある」 というものです … Webmysql的基本操作可以包括两个方面:mysql常用语句如高频率使用的增删改查(crud)语句和mysql高级功能,如存储过程,触发器,事务处理等。而这两个方面又可以细分如下: … cool for cats squeeze