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How to export the root database of version 8.1.0.5?

From [MySQLdiscussion group] 2020-05-21 09:51:18 0  1  1152

Back-end development - How to write sql statements for mysql statistics by time segment?

My database table structure is as follows: The fields are ID, NUM1, NUM2, TIME1, TIME2, MONEY. I want to count...

From [MySQLdiscussion group] 2017-05-25 15:08:22 0  3  1152

mysql有什么命令可以讓mysql同時(shí)使用兩個(gè)索引

我知道USE INDEX，IGNORE INDEX，F(xiàn)ORCE INDEX這3個(gè)命令，分別是添加 USE INDEX 來(lái)提供你希望 MySQ 去參考的索引列表，就可以讓 MySQL 不再考慮其他可用的索引。IGNORE ...

From [MySQLdiscussion group] 2017-04-17 15:21:18 0  3  1151

slow-start - [ERROR] Failed to write to mysql.slow_log

{代碼...} I have a mysql server5.6. mysql> set global log_output = 'TABLE'; Always output error informati...

From [MySQLdiscussion group] 2017-06-28 09:23:18 0  1  1150

mysql cascade query

table A :suittable B :suit_goods Related conditions: suit.suit_id = suit_goods.suit_id Corresponding relations...

From [MySQLdiscussion group] 2017-06-22 11:54:37 0  3  1148

After accessing the home page, error #1064 occurred when creating the database

An error occurred while creating the database

From [MySQLdiscussion group] 2020-04-09 23:42:35 0  0  1147

數(shù)據(jù)庫(kù) - MYSQL提示數(shù)據(jù)過(guò)長(zhǎng)錯(cuò)誤，根據(jù)網(wǎng)上的解決方案無(wú)法解決

環(huán)境是WAMPSERVER錯(cuò)誤類型如下，應(yīng)該可以肯定是字符編碼的問(wèn)題： SQLSTATE[22001]: String data, right truncated: 1406 Data too long for colu...

From [MySQLdiscussion group] 2017-04-17 15:18:16 0  1  1146

Unable to create/set up connection: Unknown system variable 'query_cache_size'

I'm running an application using JDBC and MySQL, using hikari pool, but it cannot build due to the following e...

From [MySQLdiscussion group] 2023-09-03 23:32:54 0  1  1145

Is there a way to improve the performance of MySQL imports that slow down over time?

I have a huge mysqldump file (~700GB) and I want to restore it on another server. For the first GB the import ...

From [MySQLdiscussion group] 2024-01-05 09:41:52 0  1  1142

phpstudy_64Why can't I upgrade mysql to 8.0?

From [MySQLdiscussion group] 2021-10-20 10:16:31 0  6  1142

sql注入是什么意思？

聽(tīng)到別人提到了  不知道什么意思新手求勿噴。。。

From [MySQLdiscussion group] 2016-12-20 16:49:51 0  2  1141

mysql - 問(wèn)個(gè)數(shù)據(jù)庫(kù)的設(shè)計(jì)規(guī)范，中間表名應(yīng)該用單數(shù)還是復(fù)數(shù)？

問(wèn)個(gè)數(shù)據(jù)庫(kù)的設(shè)計(jì)規(guī)范問(wèn)題，假設(shè)有個(gè)用戶表users 有個(gè)角色表roles 用戶跟角色之間是多對(duì)多關(guān)系，那我中間表應(yīng)該用users_roles 還是用user_role？ Laravel 默認(rèn)是用單數(shù)user_role我想...

From [MySQLdiscussion group] 2017-04-17 15:04:41 0  4  1141

Apache running error

From [MySQLdiscussion group] 2017-09-21 10:11:27 0  2  1139

mysql - String replacement based on dictionary

Source table: Dictionary table: It is expected to replace the values ????in the source table according to the ...

From [MySQLdiscussion group] 2017-05-18 10:50:38 0  1  1139

Retrieving and displaying images from a database in a JSP page: a step-by-step guide

How to retrieve and display images from database in JSP page?

From [MySQLdiscussion group] 2023-08-27 21:30:22 0  1  1138