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mysql MyISAM并發(fā)插入?

mysql 數(shù)據(jù)庫有一個表，tables_s,本地客戶端A連接此數(shù)據(jù)庫后，設(shè)置全局變量concurrent_insert =2,并且對tables_s加并發(fā)共享讀鎖lock table tables_s read loc...

From [MySQLdiscussion group] 2017-04-17 13:52:01 0  2  905

sqlserver 數(shù)據(jù)實時同步到mysql 時出錯，OLE DB 訪問接口 "MSDASQL" 無法啟動分布式事務(wù)。

各位高手，我按下面這個方法進行了從sqlserver到mysql的數(shù)據(jù)同步，sqlserver 數(shù)據(jù)實時同步到mysql 操作到這步 “6.1 insert” 后，測試了一下插入數(shù)據(jù)，出現(xiàn)了以下錯誤：無法執(zhí)行該操作，因為...

From [MySQLdiscussion group] 2017-04-17 15:23:56 0  0  904

mysql - 循環(huán)中逐個查詢數(shù)據(jù)庫和聯(lián)表一次性查詢數(shù)據(jù)庫分別適用于哪種場景？

一般來說循環(huán)中逐條查詢的效率是比較低的，每次都產(chǎn)生連接以及并發(fā)的開銷。是否有些場景是適合在循環(huán)中逐個去查詢，而不適合一次性查表的場景呢？

From [MySQLdiscussion group] 2017-04-17 15:00:31 0  2  904

Node.js connect to MySQL Docker container ECONNREFUSED

Before marking this question as a duplicate, please note that I did read the other answer and it did not solve...

From [MySQLdiscussion group] 2024-01-21 15:41:18 0  1  903

Confluence MySQL connector connection not established

I'm trying to connect MySQLDB (installed in my laptop) from ConfluenceCloudRemote access using the MySQLSource...

From [MySQLdiscussion group] 2023-09-09 13:22:30 0  1  903

mysql中 select * from xxx where xxx.ttt like '%~%' 是什么意思

From [MySQLdiscussion group] 2017-04-17 11:03:10 0  3  903

php - Make URLs prettier?

I want to render a Chinese website and convert some special characters into "-" {code...} Like this,...

From [MySQLdiscussion group] 2017-06-12 09:21:22 0  1  902

mysql優(yōu)化 - mysql數(shù)據(jù)insert快還是update比較快

現(xiàn)在有2個張表,現(xiàn)在的處理邏輯是先往1張表的插入數(shù)據(jù),然后再查詢出插入的數(shù)據(jù)再更新到另一張表。這樣操作的原因是擔(dān)心如果直接更新另一張表的話會不會數(shù)據(jù)量大了導(dǎo)致更新速度慢,沒有完全更新導(dǎo)致數(shù)據(jù)丟失。我這樣...

From [MySQLdiscussion group] 2017-04-17 16:27:11 0  2  902

node.js - MYSQL 中兩個表的數(shù)據(jù)清洗問題

兩個表分別都有兩個相同的字段比如A表有cityId,cityName.B表也有cityId,cityName. B表的cityId和cityName都有值。A表有大量數(shù)據(jù)cityId有值且值都包含在A表。cityName...

From [MySQLdiscussion group] 2017-04-17 13:04:59 0  2  902

mysqld encountered exception 0xc0000005

Sorry, my English is not fluent. I'm new to MySQL database. I'm using MySQL8.0.30 on WindowsServer2022Datacent...

From [MySQLdiscussion group] 2023-12-29 19:58:06 0  1  901

Mysql啟動發(fā)生系統(tǒng)錯誤1067

Windows解壓的Mysql,編輯my.ini后無法啟動。 {代碼...} {代碼...} 日志如下： {代碼...} 網(wǎng)上方法失?。?{代碼...}

From [MySQLdiscussion group] 2017-04-17 15:48:10 0  1  901

mysql 同時向兩張關(guān)聯(lián)表插入數(shù)據(jù)

{代碼...} 我想在teacher表增加一條記錄的同時也要為teacherCourse增加一條記錄，問題是表1的id是自增的，能先獲取剛插入自增的id然后作為表2的teacherId插入數(shù)據(jù)嗎？

From [MySQLdiscussion group] 2017-04-17 15:14:31 0  4  901

PHP: Call MySQL stored procedure with input and output parameters (not "INOUT")

I want to call a stored procedure in MySQL from PHP. The procedure takes input and output parameters - not &qu...

From [MySQLdiscussion group] 2023-10-19 16:56:30 0  2  899

Unhandled exception: SocketException: Connection refused (OS Error: Connection refused, errno=111), address=localhost, port=60332

Firstly, I want to get data from localhost in MySQLWorkbench, I have created dummy database and put tables in ...

From [MySQLdiscussion group] 2023-08-29 22:47:40 0  1  899

php - How to enable web pages to support emoji display?

My webpage is written in php+mysql, so the data will be placed in the database. But suppose I want to display ...

From [MySQLdiscussion group] 2017-06-12 09:21:03 0  1  899