MySQL文档：https://dev.mysql.com/doc/connector-python/en/
PYPI： https://pypi.org/project/mysql-connector-python/

mysql-connector-python 是MySQL官方的Python语言MySQL连接模块

安装

$ pip install mysql-connector-python

  

 

  
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代码示例

连接管理

# -*- coding: utf-8 -*-

import mysql.connector

db_config = { "database": "mydata", "user": "root", "password": "123456", "host": "127.0.0.1", "port": 3306,
}

# 连接数据库获取游标，可以设置返回数据的格式，元组，命令元组，字典等...
connect = mysql.connector.Connect(**db_config)

cursor = connect.cursor(dictionary=True)

# 关闭游标和连接
cursor.close()
connect.close()

  

 

  
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写操作

数据 写入 和 更新 都可以使用 execute 和 executemany
删除就使用execute
写操作都需要 commit 才会生效

# 插入元组数据
insert_tuple_sql = "insert into student(name, age) values(%s, %s)"
data = ("Tom", 23)
cursor.execute(insert_tuple_sql, data)
connect.commit()
print(cursor.lastrowid)   # 一般插入一条时使用，获取插入id

# 插入多条元组数据
insert_tuple_sql = "insert into student(name, age) values(%s, %s)"
data = [ ("Tom", 23), ("Jack", 25),
]
cursor.executemany(insert_tuple_sql, data)
connect.commit()


# 插入字典数据
insert_dict_sql = "insert into student(name, age) values(%(name)s, %(age)s)"
data = { "name": "Tom", "age": 25
}

cursor.execute(insert_dict_sql, data)
connect.commit()

# 插入多条字典数据
insert_dict_sql = "insert into student(name, age) values(%(name)s, %(age)s)"
data = [ { "name": "Tom", "age": 26 }, { "name": "Jack", "age": 27 }
]

cursor.executemany(insert_dict_sql, data)
connect.commit()


  

 

  
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读操作

cursor.execute("select * from student where name=%s limit 3", ("Tom",))
rows = cursor.fetchall()
print(rows)

# 因为开始设置的返回数据格式是字典 dictionary ，所以直接返回字典数据
# [
#  {'id': 1, 'name': 'Tom', 'age': 23},
#  {'id': 2, 'name': 'Tom', 'age': 23},
#  {'id': 3, 'name': 'Tom', 'age': 25}
#]

# 获取一些元数据信息
print(cursor.column_names)  # ('id', 'name', 'age')

print(cursor.description)
# [
#  ('id', 3, None, None, None, None, 0, 16899),
#  ('name', 253, None, None, None, None, 1, 0),
#  ('age', 3, None, None, None, None, 1, 0)
#]

print(cursor.rowcount)  # 3

print(cursor.statement)
# select * from student where name='Tom' limit 3

print(cursor.with_rows)
# True


  

 

  
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文章来源: pengshiyu.blog.csdn.net，作者：彭世瑜，版权归原作者所有，如需转载，请联系作者。

原文链接：pengshiyu.blog.csdn.net/article/details/93890364