使用PYTHON删除PG中的记录

郑全

1.语句

[postgres@eulersvr ~]$ cat delete.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="""delete  from emp where empno=%s; """

params=(100,)

cursor.execute(sql,params)


conn.commit()

cursor.close()

conn.close()
[postgres@eulersvr ~]$


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

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

postgres=# select * from emp;
id | empno | last_name
----+-------+-----------
  2 |   101 | liuzy
  3 |   102 | wangj

100这条记录已经没有了