Issues with image uploads and thumbnails being stored in the database together with other form data

From [MySQLdiscussion group] 2019-12-08 13:47:57 0  1  1458

What do "symbol not found" or "unable to resolve symbol" errors mean?

Please explain the following about "symbol not found", "cannot resolve symbol" or "sy...

From [MySQLdiscussion group] 2023-10-09 13:52:29 0  2  1454

phpStudy's Mysql environment

I have been using Laravel 5.5 recently. When using php artisan migrate, I always get a database migration erro...

From [MySQLdiscussion group] 2019-03-06 09:02:10 0  2  1453

这条sql语句为什么加上where就报错？

这条SQLSELECT *,SUM(tuanke_time.time) AS total_time  FROM `tuanke_time`  LEFT ...

From [MySQLdiscussion group] 2016-11-19 15:09:06 0  3  1452

mysql optimization - mysql 5.7 not in != The index is valid, why? Updated?

Why did I use not in != on mysql 5.7 today to use the index? I read many articles saying that the index will b...

From [MySQLdiscussion group] 2017-05-18 10:46:28 0  1  1447

In mysql optimization, the field setting is not null.

In mysql optimization, try to avoid setting fields to null, which will affect query speed. This refers to whet...

From [MySQLdiscussion group] 2020-04-05 10:27:28 0  3  1445

python3.x - python mysql executemany提取数据问题

从mysql中提取数据，stocklist长度是300，executemany是283,fetchmany只返回了一个值，求问该怎么解决。。

From [MySQLdiscussion group] 2017-04-17 13:26:16 0  1  1443

mysqli cannot update data

$sql="UPDATE 'student' SET 'course'='javascript','grade'=88,'WHERE 'id'=3"; prompt after running; co...

From [MySQLdiscussion group] 2020-02-07 15:04:07 0  5  1440

Can't log in to mysql? May I ask what went wrong?

I installed MySQL before and then a classmate mistakenly deleted the .sock socket file. After adjusting variou...

From [MySQLdiscussion group] 2017-07-05 10:02:07 0  1  1440

How to upgrade mysql in php toolbox

How to upgrade mysql in php toolbox

From [MySQLdiscussion group] 2018-09-20 18:01:24 0  1  1435

I installed the xampp integrated environment, and then installed the php toolbox and it prompted that port 80 was occupied.

Can't these two integrated environments be installed and used at the same time?

From [MySQLdiscussion group] 2017-10-20 19:57:52 0  2  1433

mysql - mybatis query counts the number of a certain column, group query based on a column, how to receive in xml file

Mybatis query counts the number of a certain column. According to a column, group query. I don’t know how to w...

From [MySQLdiscussion group] 2017-06-15 09:21:18 0  1  1427

mysql trigger

MySQL trigger problem, I want to delete the content of an article and the comments about this article in anoth...

From [MySQLdiscussion group] 2018-06-21 10:52:22 0  1  1425

postgresql - What are the advantages and disadvantages of on duplicatekey update in MYSQL?

on duplicatekey update If it exists, it will be updated, if it does not exist, it will be inserted. It is an o...

From [MySQLdiscussion group] 2017-06-24 09:41:38 0  1  1425

mysql - 为什么不用驼峰命名创建表名和字段？

例如：user : userId nickName ..userInfo : userAvatar 补充问题：现在编程已经不是很多年前那样，你一套系统也不用跟人家交互。以做接口为例，驼峰命名据说可以在IOS解析接口的时候...

From [MySQLdiscussion group] 2017-04-17 13:48:46 0  5  1425