Using the from method to find the latest products under each column, why are the results incorrect?

Use the from method to find the latest products under each column, why are the results incorrect? select goods...

From [MySQLdiscussion group] 2022-08-09 13:50:58 0  2  766

Elasticsearch如何与MySQL同步

这几天在尝试使用Elasticsearch，遇到一个问题。 我现在通过如下将MySQL的数据通过elasticsearch-jdbc导入至Elasticsearch {代码...} 当然这是存在问题的："sch...

From [MySQLdiscussion group] 2017-04-17 13:11:19 0  2  766

MySQL InnoDB does not free disk space after deleting data rows from table

I have a MySQL table using the InnoDB storage engine; it contains approximately 2M rows of data. When I delete...

From [MySQLdiscussion group] 2023-10-15 00:02:19 0  2  765

Unhandled exception: SocketException: Connection refused (OS Error: Connection refused, errno=111), address=localhost, port=60332

Firstly, I want to get data from localhost in MySQLWorkbench, I have created dummy database and put tables in ...

From [MySQLdiscussion group] 2023-08-29 22:47:40 0  1  765

php - How to push emjio remotely on ios and how to cooperate

It is to display the emjio emoticon when pushing the pop-up window remotely, which is similar to! [Picture upl...

From [MySQLdiscussion group] 2017-06-24 09:41:28 0  3  765

mysql - 微信关键词自动回复数据库设计

我们先看下需求，然后再看图， 请问大家，这个数据库怎么设计？ 需求分析 规则名：最多60字 关键词：可以添加多个，每个关键词都有完全匹配和未完全匹配选项 回复：回复可以是文字、图片、语音、视频、单图文、多...

From [MySQLdiscussion group] 2017-04-17 11:38:13 0  1  765

mysql 查询所有评论以及回复

表设计如下 question(id, user_id,content)answer (id,question_id,user_id,content)reply (id,answer_id, user_id,content...

From [MySQLdiscussion group] 2017-04-17 15:30:30 0  2  764

mysql order by instr排序的索引优化问题

在mysql中，有表结构如下： {代码...} 比如有下面的数据在其中： {代码...} 使用下面的语句查询时，结果如下： {代码...} 请问如何优化，能让这里不用到filesort呢？ 补充一下请教公司dba的回答：...

From [MySQLdiscussion group] 2017-04-17 11:13:24 0  2  764

Object reference not set to object instance error when configuring MySQL Server 8.0

I'm installing MySQLServer8.0.29 from the MySQL installer and while applying the configuration I get the error...

From [MySQLdiscussion group] 2024-03-26 00:24:43 0  1  763

Manually copy a MySQL 5.5 database to another computer

The product my company uses uses MySQL5.5 as the backend database. The product automatically installs and conf...

From [MySQLdiscussion group] 2023-09-05 00:16:59 0  1  763

mysql导入sql大文件语句？

数据库down下一个200M的sql文件准备做测试，求一个导入数据库的方法；Tips:cli下用source 导入直接导致server断掉，亲测用工具SQLyog一样不行另，修改了my.inimax_allowed_pa...

From [MySQLdiscussion group] 2017-04-17 16:24:18 0  3  763

MySQL查询用户表中所有记录，按ID降序排序，如果用户状态为0(未激活)，则注册时间升序，排在结果最后，这个SQL.该怎么写呢

MySQL查询用户表中所有记录，按ID降序排序，如果用户状态为0(未激活)，则注册时间升序，排在结果最后，这个SQL.该怎么写呢？

From [MySQLdiscussion group] 2017-04-17 15:55:51 0  3  763

php - How does C# parse content formats like mysql's my.ini?

Content format of my.ini: {code...}

From [MySQLdiscussion group] 2017-06-24 09:41:34 0  1  762

The problem of group by in Mysql. .

In Mysql, the following writing method is allowed. But is it strict or not? Does it support writing like this?...

From [MySQLdiscussion group] 2017-05-18 10:52:23 0  9  762

mysql查询id,IN根据结果模糊问题

select id,title,content from myarticle where id IN(219,220,222,225) and content like '明明' or title like '明明'; ...

From [MySQLdiscussion group] 2017-04-17 13:47:58 0  2  762