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postgresql psycopg2 select single value

By Breakable BeeBreakable Bee on Oct 28, 2020
#!/usr/bin/env python
# -*- coding: utf-8 -*-

import psycopg2
import sys

con = None


    con = psycopg2.connect(database='testdb', user='postgres',

    cur = con.cursor()
    cur.execute('SELECT version()')

    version = cur.fetchone()[0]

except psycopg2.DatabaseError as e:

    print(f'Error {e}')


    if con:

Source: zetcode.com

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