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Regular expression to match words

I have a script where I am trying to match new job names with existing job names in a database. SELECTa.titleA...

From [MySQLdiscussion group] 2024-04-06 21:24:04 0  1  1570

Why doesn't the PHP I write work?

提示我：Notice: Undefined variable: var_dump in?D:\phpStudy\PHPTutorial\WWW\my.php?on line?11Fatal error: Function...

From [MySQLdiscussion group] 2017-11-17 19:49:41 0  2  1568

arp_announce

The purpose of configuring arp_ignore to 1 is to prevent the server from responding to VIP requests. So what i...

From [MySQLdiscussion group] 2017-12-26 10:15:48 0  2  1566

幾百萬數(shù)據(jù)的群聊要怎樣分表？

有兩張表，群表，群成員表，現(xiàn)在成員表比較大想進(jìn)行分表想到有兩種分表方法，按人分或按群分如果按人分，查詢哪個(gè)人加入過哪個(gè)群很容易，但查詢?nèi)河卸嗌偃藞?bào)名就要用UNION去查了如果按群分，查詢?nèi)河卸嗌偃藞?bào)名很容易，但查詢哪個(gè)人...

From [MySQLdiscussion group] 2017-03-18 17:04:33 0  2  1563

#2002 Unable to log in to MySQL server

#2002 Unable to log in to the MySQL server, how to solve this problem? I used phpstudy2018 to build a database...

From [MySQLdiscussion group] 2020-03-12 01:11:20 0  2  1561

mysql - What is the use of table name prefix?

So many companies' projects add a prefix word to the table name when designing the table, but what is the use ...

From [MySQLdiscussion group] 2017-06-08 11:03:32 0  10  1561

why is this happening

From [MySQLdiscussion group] 2018-12-17 13:26:17 0  4  1560

mysql - 阿里云服務(wù)器數(shù)據(jù)庫自動(dòng)關(guān)閉，怎么解決

網(wǎng)站運(yùn)行一段時(shí)間，突然連不上數(shù)據(jù)庫了，重啟數(shù)據(jù)庫，網(wǎng)站又正常了！請(qǐng)問是什么原因呢？以下是錯(cuò)誤日子內(nèi)容： {代碼...}

From [MySQLdiscussion group] 2017-04-17 14:26:19 0  2  1551

wempserver, keeps showing yellow?

After changing the port, the red color turned to yellow, Apache was turned on, but SQL could not be started, a...

From [MySQLdiscussion group] 2020-03-08 15:32:28 0  0  1543

How to switch different versions of mysql database in wamp settings

How do I switch between different versions of mysql database in wamp settings? There is only one 5.7.14 in my ...

From [MySQLdiscussion group] 2018-07-19 18:17:24 0  1  1536

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  1529

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  1527

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  1526

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  1525

Simple way to calculate median with MySQL

What is the simplest (hopefully not too slow) way to calculate the median using MySQL? I'm using AVG(x) to fin...

From [MySQLdiscussion group] 2023-08-29 11:47:07 0  2  1523