python之mysql

1、開發文檔

https://mysqlclient.readthedocs.io

 

2、安裝

pip install mysqlclient==1.3.12

 

3、獲取記錄

fetchone     fetchmany      fetchall

 

4、簡單實例

import MySQLdb
import pprint

#建立一個connection對象，表明了一個數據庫鏈接
connection = MySQLdb.connect(
                    host="192.168.2.244",
                    user="root",
                    passwd="123456",
                    db="crodigyrtu",
                    charset="utf8")

#返回一個cursor對象
c = connection.cursor()

#調用cursor對象的exeute方法查表

c.execute("SELECT * FROM room_device")
rows = c.fetchmany(c.rowcount)   #c.rowcount返回獲取的行數
pprint.pprint(rows)


#調用cursor對象的exeute方法增長數據
c.execute("INSERT INTO room_device ···········")

#必定要執行commit才能插入成功
connection.commit()


#調用cursor對象的exeute方法刪除數據
c.execute("DELETE FROM room_device ···········")

#必定要執行commit才能插入成功
connection.commit()