Pyhton crawler case (4) -- item inserted into MySQL database

In this section, how to insert the crawled data into mysql database is discussed. The tools used are PyCharm and Navicat for MySQL or Navicat Premium The crawled website is: http://books.toscrape.com/ , which is explained in many tutorials. Let's open navicat, create a new query, and create a table in the editor (using the dat ...

Posted by Salkcin on Sat, 04 Jan 2020 15:29:38 -0800

Using Go language to operate MySQL database

Recently, I learned to use Go language to operate MySQL database to add, delete, modify and query user data when I was doing the registration and login service. Now I summarize my personal learning experience as follows, and attach Code warehouse address Welcome to fork. Software environment: Goland, Navicat for MySQL. 1, Realization ideas 1 ...

Posted by Potatis on Sat, 04 Jan 2020 03:05:34 -0800

Top 250 of data analysis films... I'm too lazy to catch it.)

Data: Link: https://pan.baidu.com/s/1knjoihbkmall6pn6e XW Extraction code: iamy ** ’’"1 top five directors with the largest number of films" ** import sqlite3 import pandas as pd#Common tools for data analysis from pyecharts import Pie#Pie chart conn=sqlite3.connect(r'D:\BaiduNetdiskDownload\navicat12 ...

Posted by jeephp on Sun, 01 Dec 2019 08:20:31 -0800

[Linux series] Centos 7 installation of Mysql8.0

objective This paper mainly introduces the following two points: How to install Mysql8.0 2. Navicat to Mysql How to install Mysql8.0 There are two ways to install Mysql: Download official source directly (slower) https://dev.mysql.com/get/mysql80-community-release-el7-1.noarch.rpm download RPM package yum localinstall mysql80-community-relea ...

Posted by blear on Mon, 25 Nov 2019 09:05:02 -0800

About mysql database migration, the pit encountered by datetime

Migration database is often encountered in work.If you use phpmyadmin to import, you can solve the problem if the database is too small. If it is too large, it will be troublesome. Either it will time out or the file is too large to import.So I chose to use Navicat For Mysql to copy the database In this process, I often encounter a problem: ERR ...

Posted by dannyb785 on Sat, 23 Nov 2019 09:28:42 -0800

Heisenberg Source Analysis 5: server Listening Port & Processing Logins

The code snippet is as follows: // startup server ServerConnectionFactory sf = new ServerConnectionFactory(); sf.setCharset(system.getCharset()); sf.setIdleTimeout(system.getIdleTimeout()); server = new NIOAcceptor(NAME + "Server", system.getServerPort(), sf); server.setProcessors(processors); server.start(); See how to do this, t ...

Posted by chen2424 on Wed, 19 Jun 2019 10:15:25 -0700

PHP of MySQL implements sorting & grouping & connection &NULL

ORDER BY grammar SELECT field1, field2,...fieldN table_name1, table_name2... ORDER BY field1, [field2...] [ASC [DESC]] Use the ORDER BY clause in PHP scripts <?php $dbhost = 'localhost:3306'; // mysql server host address $dbuser = 'root'; // mysql username $dbpass = '123456'; // mysql username passw ...

Posted by ijmccoy on Tue, 05 Feb 2019 03:15:17 -0800

Navicat Premium v12 Activation

1 Introduction: Navicat for MySQL is familiar to all. For developers, table building, view building, development model, database synchronization (very commendable), batch tasks, direct generation of ER diagrams, etc.Navicat Premium is similar to a family bucket, which contains a variety of database connections, azure sql, aws, etc. It can be s ...

Posted by evilgenius on Sun, 20 Jan 2019 19:33:13 -0800