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mysql - About database table structure design

I want to make a test system, but I am currently encountering the problem of not knowing how to design the tab...

From [MySQLdiscussion group] 2017-05-27 17:39:05 0  2  791

mysql - 這條sql可以怎么優(yōu)化，求幫助

select count(*) from trade where shippingtype <> "free" and status in ("TRADE_FIN...

From [MySQLdiscussion group] 2017-04-17 15:19:32 0  4  791

Select the correct database row to achieve grouped results

I want to select the best score for each user for a specific game. My current query selects the score, date_sa...

From [MySQLdiscussion group] 2024-04-05 10:37:31 0  1  790

SQL Server: Using CASE WHEN expression with WHERE clause

I have a new SpringBoot project with SQLServer and I need to replace the MySQL native queries on the repositor...

From [MySQLdiscussion group] 2024-04-03 14:46:55 0  1  790

數(shù)據(jù)庫(kù) - mysql boolean型無(wú)法插入true

mysql設(shè)置boolean型會(huì)轉(zhuǎn)為tinyint(1)在我本地的mysql上，我插入一個(gè)true，會(huì)自動(dòng)轉(zhuǎn)為1，插入到數(shù)據(jù)庫(kù)，但是在我服務(wù)器上卻不行。不知道是版本問(wèn)題還是配置問(wèn)題，請(qǐng)教一下大神

From [MySQLdiscussion group] 2017-04-17 16:26:44 0  5  790

mysql - 七牛云存儲(chǔ)portal用的什么數(shù)據(jù)庫(kù)？

網(wǎng)址:https://portal.qiniu.com登陸密碼可以不限長(zhǎng)度，不知用的什么數(shù)據(jù)庫(kù)？

From [MySQLdiscussion group] 2017-04-17 15:24:52 0  1  790

Problem correctly adding boolean value to mysql via spring jpa

So I want to persist some objects to SQL. This is my table: CREATETABLE`user_segment`(`id`INT(11)PRIMARYKEYAUT...

From [MySQLdiscussion group] 2023-12-05 16:56:21 0  1  789

Docker Compose - Connection to Phpmyadmin and MySQL not working

I need an easy way to create an environment containing PHP, NGINX, MySQL and phpmyadmin using Docker-compose. ...

From [MySQLdiscussion group] 2023-08-28 09:00:04 0  1  789

mysql - sql中能否按id指定順序取出數(shù)據(jù)？

{代碼...} 但是順序會(huì)亂。sql中有沒(méi)有自帶的處理函數(shù)？ ------------------補(bǔ)充------------------------------ 想利用mysql中l(wèi)imit做分頁(yè)，所以想在mysql中...

From [MySQLdiscussion group] 2017-04-17 16:18:14 0  3  789

mysql優(yōu)化 - 如何確認(rèn)MySQL replication真正的復(fù)制延遲是多少

mysql replication 慢的真正原因是什么？

From [MySQLdiscussion group] 2017-04-17 13:20:33 0  1  789

mysql - 有關(guān)laravel鏈接數(shù)據(jù)庫(kù)的問(wèn)題

用laravel4.2寫(xiě)了個(gè)項(xiàng)目，在本地做測(cè)試的時(shí)候是沒(méi)有問(wèn)題的 然后現(xiàn)在把項(xiàng)目搬到阿里云上之后 使用 {代碼...} 顯示 SQLSTATE[28000] [1045] Access denied for user '...

From [MySQLdiscussion group] 2017-04-17 12:06:56 0  2  789

MySql Error: The table in a stored function/trigger cannot be updated because it is already used by a statement that calls this stored function/trigger

I'm running a MySQL query. However, when adding a new row from the form input, I get this error: Error:Can'tup...

From [MySQLdiscussion group] 2023-10-15 23:34:43 0  2  788

mysql - InnoDB中的鎖

表如下： {代碼...} 數(shù)據(jù)如下： {代碼...} 有兩個(gè)事務(wù)同時(shí)開(kāi)啟：事務(wù)1： {代碼...} 事務(wù)2 {代碼...} 問(wèn)題是為什么事務(wù)1刪除11，會(huì)把11和它之前的范圍鎖定，導(dǎo)致事務(wù)2不能再這個(gè)區(qū)間插入數(shù)據(jù)。 這是...

From [MySQLdiscussion group] 2017-04-17 15:03:03 0  2  788

mysql數(shù)據(jù)庫(kù)分庫(kù)分表哪個(gè)工具好，我整理出來(lái)了五個(gè)，求點(diǎn)評(píng)

Hi，各位好 目前公司用戶(hù)數(shù)據(jù)庫(kù)的數(shù)據(jù)量已經(jīng)達(dá)到2億條了，想優(yōu)化一下，緩存不用說(shuō)了已經(jīng)實(shí)現(xiàn)了。現(xiàn)在想實(shí)現(xiàn) 分庫(kù)分表，網(wǎng)上找了一些開(kāi)源的分庫(kù)分表的中間件吧?？戳丝锤饔懈鞯暮茫Ｍ杏眠^(guò)的給小弟推薦一個(gè)。 {...

From [MySQLdiscussion group] 2017-04-17 14:52:50 0  3  788

node.js - nodejs查詢(xún)數(shù)據(jù)庫(kù) 執(zhí)行順序不太對(duì)。。怎么同步查詢(xún)

直接上代碼 {代碼...} 這個(gè)是數(shù)據(jù)庫(kù)查詢(xún)的文件 {代碼...} 報(bào)錯(cuò)信息 {代碼...} 剛剛接觸nodejs 被搞得頭大 請(qǐng)大神幫忙！ 按照大神的方法改好了，但是遇到了新的問(wèn)題。我現(xiàn)在mysql.query('XX...

From [MySQLdiscussion group] 2017-04-17 13:47:13 0  4  788