亚洲国产日韩欧美一区二区三区,精品亚洲国产成人av在线,国产99视频精品免视看7,99国产精品久久久久久久成人热,欧美日韩亚洲国产综合乱

Mysql slow query log content viewing problem

The slow query log is enabled in mysql, but I often see such a query in the log. I don’t know what it means. I...

From [MySQLdiscussion group] 2017-06-28 09:23:21 0  2  1091

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

How to use UNIQUE of PHP and MySQL to ensure that the user name is unique like JD.com registration?

I think that such quick judgment of duplicate user names is achieved by setting the user name field UNIQUE and...

From [MySQLdiscussion group] 2017-06-28 09:23:08 0  3  948

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

What is the error in the MySQL create table structure statement?

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

From [MySQLdiscussion group] 2017-06-26 10:49:29 0  3  1036

Question about not being able to modify field names in MySQL

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

From [MySQLdiscussion group] 2017-06-26 10:49:27 0  1  1111

Question about updating data in MySQL [update] cannot be successful

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

From [MySQLdiscussion group] 2017-06-26 10:49:26 0  3  893

How to batch update mysql according to respective conditions

There are two existing tables. A is the detailed table id uid cost 0 1 4 3 Now we need to group the data with ...

From [MySQLdiscussion group] 2017-06-26 10:49:25 0  1  1079

mysql scripts presented /usr/bin/perl: bad interpreter

-bash: scripts/mysql_install_db: /usr/bin/perl: bad interpreter: No such file or directory但我已經(jīng)yum -y install p...

From [MySQLdiscussion group] 2017-06-26 10:49:24 0  2  1330

Mycat configures sub-tables, the underlying mysql, an array overflow exception occurs in the query, what is the reason?

Start mycat normally and configure sub-tables. This exception occasionally occurs when querying. Have you enco...

From [MySQLdiscussion group] 2017-06-24 09:42:15 0  1  1051

mysql - How to record table structure changes in the database?

During the development process, the table structure will always need to be changed. Can each change to the tab...

From [MySQLdiscussion group] 2017-06-24 09:41:40 0  1  1279

php - How to split large batches of data?

Hello everyone, there are 10,000 orders in the database, and various calculations need to be performed on the ...

From [MySQLdiscussion group] 2017-06-24 09:41:39 0  2  1111

postgresql - What are the advantages and disadvantages of on duplicatekey update in MYSQL?

on duplicatekey update If it exists, it will be updated, if it does not exist, it will be inserted. It is an o...

From [MySQLdiscussion group] 2017-06-24 09:41:38 0  1  1491

mysql - efficiency issues of inner join and left join

Under what circumstances will the execution efficiency of inner join and left join be relatively high?

From [MySQLdiscussion group] 2017-06-24 09:41:36 0  2  1997

php - yii2-ueditor-widget

yii2-ueditor-widget When using a text editor, the ActiveForm form validation error in Yii will not prompt an e...

From [MySQLdiscussion group] 2017-06-24 09:41:35 0  1  935