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Why are my MySQL default settings not taking effect?

My default value for MOVIE_RATING doesn't seem to work. Can someone tell me what's wrong with the query or hel...

From [MySQLdiscussion group] 2023-08-31 15:07:35 0  1  751

Remove duplicate rows and keep only the latest worklog entries

I created this query and it works. The problem is that it shows rows for each job log. I just need the latest ...

From [MySQLdiscussion group] 2023-08-10 17:25:56 0  1  751

Is there any statement in mysql that can directly update the first ten items of sorted data?

I would like to ask, is there any sql that can directly sort the current table by score, and then update a fie...

From [MySQLdiscussion group] 2017-05-19 10:07:15 0  2  751

mysql在控制臺下顯示亂碼，請假各位大神

在百度上搜過一些方法：比如 1. 設(shè)置my.ini 文件，但本人mysql5.6 解壓包里面只有my-default.ini，在這個(gè)文件里面添加 default-character-set=utf8，但exit 退出數(shù)據(jù)...

From [MySQLdiscussion group] 2017-04-17 14:42:35 0  3  751

Docker Image: Integration of PHP 8.0, Apache and phpMyAdmin

I'm creating an image for a php8 project running on apache and using phpMyAdmin, my Dockerfile is as follows: ...

From [MySQLdiscussion group] 2024-03-31 18:19:17 0  1  750

A MySql query problem

The data is as follows: id col 1 a,b,d 2 a,b,c My query conditions: col=(a,b) requires to find two rows with i...

From [MySQLdiscussion group] 2017-05-18 10:46:37 0  2  750

mysql怎么多表刪除啊?

我的版本是5.5.40怎么進(jìn)行多表刪除??？ 試了好多都不行啊

From [MySQLdiscussion group] 2017-04-17 16:25:39 0  1  750

left-join - 關(guān)于 mysql 關(guān)聯(lián)查詢的一些疑惑

【join查詢這種黑科技在數(shù)據(jù)量小的情況下可以使用，基本沒有什么影響，數(shù)據(jù)量大的時(shí)候，join的性能可能會是硬傷，應(yīng)該盡量避免，可以分別根據(jù)索引取單表數(shù)據(jù)然后在應(yīng)用層對數(shù)據(jù)進(jìn)行join、merge】, 想問下例如現(xiàn)在.....

From [MySQLdiscussion group] 2017-04-17 16:02:44 0  1  750

mysql中用多表UNION查詢和一個(gè)表查詢 哪個(gè)更好

mysql中用多表UNION查詢和一個(gè)表查詢 哪個(gè)更好 想建一個(gè)分類庫 數(shù)據(jù)很多 現(xiàn)在是兩種方案，一種是建30多個(gè)表，然后用UNION進(jìn)行連表查詢。另一種方案是建一個(gè)表 所有的都放進(jìn)去 然后用單表查詢，問一下是哪種方法速...

From [MySQLdiscussion group] 2017-04-17 15:47:52 0  1  750

Find the average level of departmental salary

I have two tables db_employee(id,first_name,last_name,salary,department_id) db_dept(department_id,department) ...

From [MySQLdiscussion group] 2023-09-02 20:56:48 0  1  749

Method to call SQL stored procedure: use CreateNativeQuery

I have a SQL stored procedure that contains two queries and I want to call the stored procedure from my Java c...

From [MySQLdiscussion group] 2023-09-02 00:10:01 0  1  749

How to determine if JSON value and parameter are not equal in Laravel?

I want to get those records from the database that are not equal to "MyMsg". The JSON in my database...

From [MySQLdiscussion group] 2023-08-26 23:37:58 0  1  749

The columns in the SELECT statement are not in the GROUP BY clause and contain non-aggregated columns....Incompatible with sql_mode=only_full_group_by

I'm using MySQL5.7.13 with WAMP server on my Windows PC My problem is while executing this query SELECT*FROM`t...

From [MySQLdiscussion group] 2023-08-21 13:21:31 0  2  749

How to log exceptions at Spring's @Transaction level?

Before using @Transaction, my business code model was roughly as follows: {code...} Similar to the above, no m...

From [MySQLdiscussion group] 2017-06-06 09:51:47 0  2  749

mysql - 在log日志中已知用戶的某一步操作，如何獲取其上一步操作？

公司的日志是記錄用戶的每一步操作的，to_page ='crhelp'為點(diǎn)擊幫助，查詢所有點(diǎn)擊過幫助的用戶進(jìn)行的所有操作的代碼如下： {代碼...} 查詢的部分結(jié)果為： 但是這些數(shù)據(jù)太多，無法查看用戶上一步的操作是什么，...

From [MySQLdiscussion group] 2017-04-17 15:51:15 0  1  749