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mysql optimization - the situation behind mysql update, delete and insert operations on multiple pieces of data

1.Update, delete and insert operate multiple pieces of data, adding, modifying and deleting one by one. Is thi...

From [MySQLdiscussion group] 2017-05-27 17:39:00 0  1  963

MySQL sql_mode設(shè)置不生效，為何？

查看sql_mode： 設(shè)置sql_mode： {代碼...} 再次查看： 退出，重啟MySQL，在進(jìn)入查看設(shè)置的又回去了 這是怎么回事？

From [MySQLdiscussion group] 2017-04-17 14:42:47 0  3  963

Filter multiple id values ??using Navicat in MySQL database

I need to filter the data using the most recent expiration date and sales price without repeating id_product, ...

From [MySQLdiscussion group] 2023-08-28 17:09:38 0  1  962

php - How to design the search association function database?

Dear friends, if you want to develop a search association drop-down function for secondary development, how sh...

From [MySQLdiscussion group] 2017-06-06 09:51:48 0  1  962

win7下 已經(jīng)安裝了mysql 5.7；現(xiàn)在想安裝xampp，需要卸載 mysql嗎？

我這個(gè)問題可能很傻，但確實(shí)比較困擾我。 我在學(xué)習(xí)mysql，極客學(xué)院的課程里，說可以直接安裝mysql，我就安裝了。然后呢，老師 又說，OK，其實(shí)你也可以用xampp的，很方便。我就很納悶了：我這個(gè)時(shí)候是直接安裝xamp...

From [MySQLdiscussion group] 2017-04-17 13:31:32 0  2  961

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  960

mysql - Jdbc linked database

(www.sf.gg) is China's leading developer technology community. We hope to provide a pure, high-quality technic...

From [MySQLdiscussion group] 2017-06-06 09:52:22 0  1  960

MySQL syntax for updating specific key/value pairs in JSON array

I have a table in a MySQL5.7.12 database with a JSON column. The data in the column has the following structur...

From [MySQLdiscussion group] 2023-11-06 14:50:43 0  1  959

Create new unique value in column

I have a (MYSQL) table in the following format; assuming the name of the table is mytable:id namegroup123name1...

From [MySQLdiscussion group] 2023-09-16 13:14:40 0  1  959

docker - 沒有沒有誰在MacOS+Toolbox下部署mysql并且成功掛載volume的？

我是在MacOS下用Docker Toolbox，部署mysql，并且掛載了一個(gè)volume到/var/lib/mysql，但是啟動(dòng)容器的時(shí)候，報(bào)錯(cuò)。感覺和volume的權(quán)限相關(guān)。具體錯(cuò)誤展現(xiàn)如下： {代碼...}

From [MySQLdiscussion group] 2017-04-17 14:18:38 0  4  958

mysql優(yōu)化 - Mysql服務(wù)器負(fù)載很高，性能問題排查思路是怎樣的？

有什么好的優(yōu)化方案

From [MySQLdiscussion group] 2017-04-17 13:20:27 0  3  958

Asking for advice on a mysql table grouping index problem

I'm working on a website program, and the general requirements are as follows. Users are divided into five lev...

From [MySQLdiscussion group] 2017-06-28 09:22:55 0  5  957

數(shù)據(jù)庫設(shè)計(jì) - MySQL數(shù)據(jù)庫主鍵問題

前幾天在項(xiàng)目組里，總監(jiān)建議把所有數(shù)據(jù)表的主鍵設(shè)為字符串類型(UUID),由應(yīng)用程序維護(hù)數(shù)據(jù)表的主鍵,問下這個(gè)主要是出于什么方面的考慮呢？？？P.S. 我們用的MySQL數(shù)據(jù)庫,存儲(chǔ)引擎用的InnoDB,看了很多DBA的文...

From [MySQLdiscussion group] 2017-04-17 16:19:42 0  3  957

海量日志數(shù)據(jù)如何處理統(tǒng)計(jì)？

項(xiàng)目需要做一個(gè)dashboard圖表網(wǎng)站，展示日志的相關(guān)統(tǒng)計(jì)信息。這個(gè)頁面圖表很多，一次性會(huì)加載出很多數(shù)據(jù)。日志表有很多種，都是一些入侵攻擊日志、惡意站點(diǎn)訪問日志等等，需要統(tǒng)計(jì)出當(dāng)前時(shí)間、過去24小時(shí)、過去一周被攻擊主機(jī)...

From [MySQLdiscussion group] 2016-11-08 11:53:48 0  1  956

Mysql one-to-many How to perform multi-condition and multiple statistics on the slave table

Main table user table id name phone (associated field) slave table call record table id phone (associated fiel...

From [MySQLdiscussion group] 2017-05-18 10:54:32 0  3  954