Error report of sql concat

Choose from the options below and concatenate the "city" and "state" columns, separated by...

From [MySQLdiscussion group] 2021-11-03 19:22:19 0  6  1128

phpstudy_64Why can't I upgrade mysql to 8.0?

From [MySQLdiscussion group] 2021-10-20 10:16:31 0  6  1023

Please God, please look at this question

What's going on? Every time I use the IN statement incorrectly, I select the state as "CA" or "...

From [MySQLdiscussion group] 2021-09-16 08:25:49 0  3  981

Can the on in the join on query statement in mysql be changed to where?

For example: SELECT salary.`basesalary`,salary.`titlesalary`,`name`FROM salary INNER JOIN employeeWHERE salary...

From [MySQLdiscussion group] 2021-09-14 11:06:42 0  2  1306

Common methods for connecting to MYSQL database with PHP

After configuring a Xiaoniao cloud server and deploying a PHP environment, what are the common methods for con...

From [MySQLdiscussion group] 2021-09-07 13:56:33 0  3  1094

An error occurred when importing phpmyadmin

This sql file was exported from SSMS and cannot be imported into phpmyadmin. Is it because of the version? How...

From [MySQLdiscussion group] 2021-08-24 10:59:06 0  2  1064

Request an interface, how to get the executed mysql,

I remember seeing a video on the PHP Chinese website with such an extension, but I can’t find it now. I rememb...

From [MySQLdiscussion group] 2021-07-15 11:36:40 0  1  1194

Unlock issues

If a process adds a lock to the table, and later the process does not unlock it normally for some reason. . So...

From [MySQLdiscussion group] 2021-07-12 17:48:56 0  2  1230

What's wrong with the implementation of PHP search function?

This is a database table

From [MySQLdiscussion group] 2021-06-10 10:01:07 0  4  1431

Why are the column names and comments of the query table displayed like this in mysql?

I want to query the column names and comments of the table. The language names are as follows, SELECT column_n...

From [MySQLdiscussion group] 2021-05-30 22:08:49 0  0  1028

MySQL initialization error, solution

From [MySQLdiscussion group] 2021-04-27 09:31:07 0  1  935

phpstudy8.1 does not integrate mysql-front

phpstudy8.1 does not integrate mysql-front. After downloading mysql-front, put it in that directory and click ...

From [MySQLdiscussion group] 2021-04-07 20:51:12 0  1  1407

After clicking login on the login page, the data cannot be queried and the login cannot be successful, but the query operation in the database can be successful. What is the reason?

<?phpsession_start();error_reporting(E_ERROR); $zh=$_POST['zh'];$password=$_POST['password...

From [MySQLdiscussion group] 2021-03-07 17:16:01 0  1  1487

phpstudy v8 gets an error when opening the database, but phpstudy 2018 does not

The website built by phpstudy v8, the website membership registration card is in the process of registration. ...

From [MySQLdiscussion group] 2021-02-28 12:55:20 0  1  1243

How to set MySQL to start automatically at boot

How to set MySQL in Xiaopi Panel to start automatically at boot? After nginx is started, MySQL must be started...

From [MySQLdiscussion group] 2021-02-05 09:37:38 0  2  2263