Article directory PyMySQL PyMySQL overview Install PyMySQL library Basic use of PyMySQL API introduction Query operation insert operation Batch insert operation Delete operation update operation SQL injection What is SQL injection solution Precautions Protect sensitive information Use connection pool Exception handling Prevent concurrency conflicts Optimize query digression PyMySQL PyMySQL Overview PyMySQL is a pure Python […]
Tag: pymysql
A brief analysis of pymysql database operation process using Python interface automation
This article mainly introduces the installation, operation process, grammatical basis and encapsulation operation database class of pymysql. Friends who need it can refer to it. I hope it can be helpful to everyone. I will improve a little bit every day. You are welcome to communicate and discuss During the automation process, we need to […]
Use PyMysql to insert 100,000 pieces of data into the database
import pymysql conn = pymysql.connect(host=’www.litemall360.com’,port=3306,user=’root’, password=’123456′,database=’litemall’,charset=’utf8′) cursor = conn.cursor() sql1 = “INSERT INTO `litemall`.`litemall_goods` (`id`, `goods_sn`, `name`, `category_id`, `brand_id`, `gallery`, `keywords`, `brief`, `is_on_sale`, `sort_order`, `pic_url`, `share_url`, `is_new`, `is_hot`, `unit`, `counter_price`, `retail_price`, `detail`, `add_time`, `update_time`, `deleted`) VALUES ( {}, {}, ‘Mother’s Day Gift-Comfortable Sleep Set’, {}, ‘1001020’, ‘[“http://yanxuan.nosdn.127.net/355efbcc32981aa3b7869ca07ee47dac.jpg\ “, “http://yanxuan.nosdn.127.net/43e283df216881037b70d8b34f8846d3.jpg”, “http://yanxuan.nosdn.127.net/12e41d7e5dabaf9150a8bb45c41cf422.jpg\\ “, “http://yanxuan.nosdn.127.net/5c1d28e86ccb89980e6054a49571cdec.jpg”]’, ”, ‘Safety and […]
Python operates MySQL database connection (pymysql)
Table of contents 1: Python operates MySQL 1.How does python operate MySQL? 2. What is PyMySQL? 2: PyMySQL installation 1.Method 1: 2.Method 2: Three: Basic use of pyMySQL module 1.Basic use of pyMySQL module Three: pymysql main methods 1.pymysql main methods 2. Content analysis: Four: fetchall has the concept of cursor on data 1. Verify […]
How to connect to database using Python and pymysql library
In the digital age, data is the key to business success. In order to effectively manage and utilize data, connecting to the database is a crucial step. Python, as a powerful programming language, provides many libraries and tools to deal with databases. Among them, the pymysql library is a popular choice, which provides connection and […]
pymysql operate MySQL database
pymysql is a library used to operate MySQL database in Python. It provides functions for connecting, querying, inserting, updating and other operations with MySQL database. 1. Install PyMySQL There are 2 ways: 1. pip command installation: pip install PyMySQL; 2. Select File -> Settings -> Interpreter through pycharm to search for PyMySQL and install it. […]
pymysql library – Python manipulates mysql
Environment: Win10 x64 + Python 3.7 + PyMySQL 1.0.2 + MySQL 8.0.27 1 installation pip install pymysql 2 addresses https://pypi.org/project/pymysql/ 3.1 Database version query (search_version.py) import pymysql # Open the database connection try: db = pymysql.connect(host=’localhost’, user=’root’, passwd=’123456′, port=3306) print(‘The connection is successful!’) except: print(‘something wrong!’) # Use the cursor() method to create a cursor […]
PythonNote042—pymysql use
Briefly introduce some operations of pymysql, adding, modifying, deleting and checking Increase Create the table first, then write data to the table In addition to the query operation, the commit operation is required for adding, modifying and deleting. For the specific principle, see ref.1 import pandas as pd import pymysql import time import warnings warnings. […]
pymysql+ dynamic package update statement
Initial method: import pymysql def update_invoice_fields(order_sn, name=None, units=None, class_name=None, tax_rate=None): “”” Update invoice related fields based on order number Parameters: order_sn (str): order number name (str): product name units (str): commodity units class_name (str): tax class name tax_rate (float): tax rate Returns: int: number of rows updated “”” # connect to MySQL database conn = […]
Python_pymysql_ interacts with mysql
Directory basic function simple package Source code and other data acquisition methods Basic functions import pymysql from pymysql.cursors import DictCursor # import dictionary type cursor object # Connect to the database db = pymysql.connect(host=’192.168.3.109′, # database IP address port=3306, # database port number user=’root’, # database user name password=’123456′, # database user password db=’test’) # […]