概述
pyMysqL库对数据库进行查询
import pyMysqL
# 和数据库创建连接
# host：需要连接的数据库地址；port：端口号；database：数据库
conn = pyMysqL.Connect(host='127.0.0.1', port=3306, database='books',
user='root', password='root', charset='utf8')
# 创建对象
cursor = conn.cursor()
# 发送sql语句
sql = 'select * from t_book'
# 执行sql语句
cursor.execute(sql)
# 结果获取,获取所有结果
rows = cursor.fetchall()
# print('所有结果：', rows)
# 遍历每一个数据
for row in rows:
print(row)
# 结果获取，获取行数
print('响应结果行数：', cursor.rowcount)
# 资源释放
cursor.close()
conn.close()
pyMysqL库对数据库进行增加
import pyMysqL
# 创建连接
conn = pyMysqL.Connect(host='127.0.0.1', port=3306, database='books',
user='root', password='root', charset='utf8', autocommit=True)
# 创建对象
cursor = conn.cursor()
# 发送 sql
sql = "insert into t_book values(4,'水浒传','2021-03-13',100,50,0)"
cursor.execute(sql)
print('新增的行数：', cursor.rowcount)
cursor.execute('select * from t_book')
rows = cursor.fetchall()
for row in rows:
print(row)
# 释放资源
cursor.close()
conn.close()
pyMysqL库对数据库进行删除
import pyMysqL
conn = pyMysqL.Connect(host='127.0.0.1', port=3306, database='books',
user='root', password='root', charset='utf8', autocommit=True)
cursor = conn.cursor()
sql = "delete from t_book where id=4"
cursor.execute(sql)
print('删除的行数：', cursor.rowcount)
cursor.close()
conn.close()
pyMysqL库对数据库进行修改
import pyMysqL
conn = pyMysqL.Connect(host='127.0.0.1', port=3306, database='books',
user='root', password='root', charset='utf8', autocommit=True)
cursor = conn.cursor()
sql = "update t_book set title='西游记后传' where id=4"
cursor.execute(sql)
print('修改的行数：', cursor.rowcount)
cursor.execute('select * from t_book')
rows = cursor.fetchall()
for row in rows:
print(row)
cursor.close()
conn.close()
总结
以上是编程之家为你收集整理的使用python的pymysql库对数据库进行增删改查的操作全部内容，希望文章能够帮你解决使用python的pymysql库对数据库进行增删改查的操作所遇到的程序开发问题。
如果您也喜欢它,动动您的小指点个赞吧
602392714
清零编程群