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According to an example of a project, this paper records and shares the process and relevant settings of python's displaying the content of database to the program interface, and explores the usage of python's operating database. Main contents to be shared: 1. Displays the database contents. 2. Modify database content. 3. The table control spec ...

Tags (space separated): building big data platform 1: Environment initialization 2: Installation of CDH5.16.2 1.1: introduction to system environment System: RHEL7.7X64 cat /etc/hosts --- 192.168.100.21 rhel01.flyfish 192.168.100.22 rhel02.flyfish 192.168.100.23 rhel03.flyfish 192.168.100.24 rhel04.flyfish ----- Only three ...

order This paper focuses on my SQL connection of canal ErosaConnection canal-1.1.4/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/ErosaConnection.java public interface ErosaConnection { public void connect() throws IOException; public void reconnect() throws IOException; public void disconnect() throws IOException; ...

If you don't know what Dockerfile is, you can check my previous blog:https://blog.51cto.com/14557905/2489466Dockerfile image production practiceThree steps for Dockerfile to create image1, Making sshd image1. Write Dockerfile file [root@docker sshd]# vim Dockerfile #base image FROM centos:7 #User information MAINTAINER this is sshd project #B ...

1. Functions 1.1 case conversion function function describe LOWER() All lowercase UPPER() uppercase INITCAP() title case 1.2 String Operating Functions function describe concat() Split String Substr (field, startIndex,endIndex) substr length() String Length Instr (field,'character') Location index where specified characte ...

< center > mybatis reverse engineering < / center > ​ The purpose of reverse engineering is to reduce our development time. The so-called Mybatis reverse engineering is that Mybatis will automatically generate pojo, mapper and mapper.xml according to the data table we have designed. The next step is the project construction proces ...

thanks Download sonarqube-6.4 Download SonarQube Scanner mysql adds a database named sonar and the user sonarqube@sonarqube Unzip SonarQube and modify the database configuration and user configuration of the configuration file [root@localhost pig]# vim sonarqube-6.4/conf/sonar.properties # Configure database user na ...

order This paper focuses on my SQL detecting time task of canal MysqlDetectingTimeTask canal-1.1.4/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/MysqlEventParser.java class MysqlDetectingTimeTask extends TimerTask { private boolean reconnect = false; private MysqlConnection mysqlConnection; ...

1. Creating Django projects with pycharms Remember to install mysqlclient (1) Database configuration We found the DATABASES configuration item in the settings.py file of the project, and changed its information to: DATABASES = { 'default': { 'ENGINE': 'django.db.backends.mysql', # Or use mysql.connector.django 'NAME': 'u ...

Advanced Date and time import datetime import time # Introduce time Modular import calendar #Get current date time now=datetime.datetime.now() print(now) #Get the specified date d=datetime.datetime(2019,10,1,12,23,40) print(d) #Date to string d2=d.strftime("%Y/%m/%d %H:%M:%S") print(d2) #String to date s="2020-8-15 2:30:20" d3=datetime.da ...