pycharm连接mysql数据库

import pymysql.cursors

连接MySQL数据库

connection = pymysql.connect(host=‘127.0.0.1’, port=3306, user=‘root’, password=‘123456’,
db=‘python’,charset=‘utf8mb4’, cursorclass=pymysql.cursors.DictCursor)

通过cursor创建游标

cursor = connection.cursor()

创建sql 语句，并执行

sql = “INSERT INTO users (email, password) VALUES (‘[email protected]’, ‘123456’)”
cursor.execute(sql)

提交SQL

connection.commit()

执行数据查询

sql = “SELECT id, password FROM users WHERE email=‘[email protected]’”
cursor.execute(sql)

#查询数据库单条数据
result = cursor.fetchone()
print(result)

print("-----------华丽分割线------------")

执行数据查询

sql = "SELECT id, password FROM users"
cursor.execute(sql)

#查询数据库多条数据
result = cursor.fetchall()
for data in result:
print(data)

关闭数据连接

connection.close()