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pydbclib It is a general python relational database operation toolkit. It uses a unified interface to operate various relational databases (such as oracle, mysql, postgres, hive, impala, etc.) for addition, deletion, and query. It is a connection driver package for various python databases (such as sqlalchemy, pymysql, CX_ The encapsulation of ...

One: Background 1. Storytelling Recently, looking at the major technical communities, whether they know, the Nuggets, the Blog Garden or csdn, we can hardly see any articles about sqlserver class shared by small partners. It looks like sqlserver has disappeared in recent years and no one has written it since. It is impossible to write sqlserver ...

Purpose: The 192.168.100.20 server backs up the MySQL database on the 192.168.100.10 server. 1. Configure MySQL server 1) 100.10 MySQL server log in to MYSQL to create two databases [root@centos01 ~]# mysql -uroot -ppwd@123 mysql> create database liyanxin; mysql> create database wangzhaojun; 2) liyanxin database creates tables and write ...

1. Compile and install LNMP and wordpress 1.1 install PHP, php mysql, mysql, PHP FPM [root@c1 ~]# yum install php php-mysql ngnix mariadb-server php-fpm -y 1.2 compile and install nginx 1.2.1 installation dependency package [root@c1 nginx]# yum install gcc pcre-devel openssl-devel zlib-devel -y 1.2.2 creating nginx users [root@c1 ~]# useradd ...

​ In this chapter, we started to formally build a big data environment, with the goal of building a stable big data environment that can be operated and monitored. We will use Ambari to build the underlying Hadoop environment, and use the native way to build Flink, Druid, Superset and other real-time computing environments. Use the combinatio ...

Upgrade plan Scope of influence: During the upgrade, the existing system will not be affected, and the system will maintain normal operation. After the upgrade, the availability test will be conducted for a period of time, and the monitoring on production will be replaced after the system is stable. Upgrade method: This upgrade adopts the blue ...

1,const Indicates that the execution step returns at most one row of data. const usually appears in the equivalent query of the primary key or unique index, such as the equivalent query of the primary key id of the t table:It can be considered that it is as fast as a rocket to locate a record by comparing the equivalence between the primary key ...

1, Environment 1. Operating system: CentOS Linux release 7.2.1511 (Core) minimized installation version 2. MySQL version: MySQL-5.7.18 (mysql-5.7.18-1.el7.x86_64.rpm-bundle.tar ) 2, Installation process 1. Install wget. [root@Geeklp-MySQL ~]# yum -y install wget 2. Download the installation package. wget -c ...

Each service has its own command to check the uptime of the service. But you can also use other commands for this. Source: https://linux.cn/article-12263-1.html By Magesh Maruthamuthu Translator: geekpi We all know the purpose of using the uptime command in Linux. It is used for checking Linux system uptime And the time s ...

IDEA Connect to MySQL Database Add MySQL database connector to project Using mysql-connector-java-8.0.15.jar as an example, add jar files to your project The JDBC-MySQL connector is now added successfully Create the appropriate connection Connect the corresponding class in the jar file try { ...