Programmer Think

1, Why use distributed ID S? Before talking about the specific implementation of distributed ID, let's briefly analyze why we use distributed ID? What characteristics should distributed IDS meet? 1. What is distributed ID? Take MySQL database as an example: When our business data volume is small, single database and single table can fully s ...

1, Intranet penetration using proxy prepare Tutorial reference address: https://snail007.github.io/goproxy/manual/zh/#/ git address of proxy software: https://github.com/snail007/goproxy/releases Prepare two servers: One with fixed IP External network server, for example: 180.76.123.37 A server in Intranet environment, for example: 192 ...

The emergence of SpringBoot makes it very easy to use transactions in projects. There are two ways to use them, which are suitable for annotation transactions (declarative transaction management) of small projects and global transactions of large projects. 1. Annotation transactions. (secondary) There are only two steps to annotate transactio ...

1, Preparation link Under development, no open source project, the details are inconvenient to show, only for Development notes. Environmental Science: python3.8 django4.0 Mysql compiler: pycharm sqlyog Preliminary preparation: Notes on website development - (Introduction to django) 2, Front end html file <form action="/now/use ...

1, Create 1. Create database View the original database of the system mysql> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | mysql | | performance_schema | | sys | +--------------------+ 4 rows in set (0.00 sec) Create your own database mysql& ...

[Abstract] as an OLAP database, Clickhouse has very limited support for transactions. This paper mainly introduces how to update and delete Clickhouse data through replacing mergetree. As an OLAP database, Clickhouse has very limited support for transactions. Clickhouse provides the movement operation (through the ALTER TABLE statement) to UPD ...

Database is very important. Without backup, data loss can only run away. So make a backup! 1, Tool introduction mysql dump is a logical backup tool that comes with mysql. Its backup principle is to connect to mysql database through protocol, query the data to be backed up, and convert the queried data into corresponding insert statements. ...

1, Overview of MySQL MMM cluster technology summary: MMM (Master Master replication manager for mysql) is a script program that supports dual master failover and dual master daily management. MMM is developed in Perl and is mainly used to monitor and manage mysql master master replication. It can be said to be mysql master replication mana ...

Linux mysql5.7 installation - super detailed Step: the installation of this article is version 5.7 Step reference video - ruoze explanation The installation steps should be roughly described below during the interview check whether Mysql is installed or running in the systemdownload mysql source package and decompressionCreate administrativ ...

catalogue 1, Basic knowledge Establish and close the connection with MySQL server 1) Connect to the specified mysql server 2) Prompt in case of connection error 3) Set default character encoding 4) Select a specific database: mysqli_select_db ( $link , string $dbname); 5) Close the connection with mysql server 2, Realize login registr ...