使用PYTHON修改PG中的记录

郑全

1.语句

[postgres@eulersvr ~]$ cat update.py
# _*_ coding:utf-8 _*_
import psycopg2

conn= psycopg2.connect(database="postgres",user="postgres",password="postgres",host="192.168.0.38",port="5432")

cursor=conn.cursor()
sql="""update emp set last_name=%s where empno=%s;"""

params=('libai',100)

cursor.execute(sql,params)


conn.commit()

cursor.close()

conn.close()


2.执行
  [postgres@eulersvr ~]$ python3 update.py

3.验证
  [postgres@eulersvr ~]$ psql
psql (16.1)
Type "help" for help.

postgres=# select * from emp where empno=100;
id | empno | last_name
----+-------+-----------
  1 |   100 | libai
(1 row)

postgres=#