使用PYTHON带条件查看PG中的数据

郑全

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

params=(100,)

cursor.execute(sql,params)

rows=cursor.fetchall()

print (rows)

conn.commit()

cursor.close()

conn.close()


2.执行
  [postgres@eulersvr ~]$ python3 query_cond.py
[(1, 100, 'mahan')]