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#!/usr/bin/env python
# -*- coding: utf-8 -*-
# MySQL Connector/Python - MySQL driver written in Python.
# Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
# MySQL Connector/Python is licensed under the terms of the GPLv2
# <http://www.gnu.org/licenses/old-licenses/gpl-2.0.html>, like most
# MySQL Connectors. There are special exceptions to the terms and
# conditions of the GPLv2 as it is applied to this software, see the
# FOSS License Exception
# <http://www.mysql.com/about/legal/licensing/foss-exception.html>.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
"""Example using MySQL Prepared Statements
Example using MySQL Connector/Python showing:
* usage of Prepared Statements
"""
from __future__ import print_function
import mysql.connector
from mysql.connector.cursor import MySQLCursorPrepared
def main(config):
output = []
cnx = mysql.connector.Connect(**config)
curprep = cnx.cursor(cursor_class=MySQLCursorPrepared)
cur = cnx.cursor()
# Drop table if exists, and create it new
stmt_drop = "DROP TABLE IF EXISTS names"
cur.execute(stmt_drop)
stmt_create = (
"CREATE TABLE names ("
"id TINYINT UNSIGNED NOT NULL AUTO_INCREMENT, "
"name VARCHAR(30) DEFAULT '' NOT NULL, "
"cnt TINYINT UNSIGNED DEFAULT 0, "
"PRIMARY KEY (id))"
)
cur.execute(stmt_create)
# Connector/Python also allows ? as placeholders for MySQL Prepared
# statements.
prepstmt = "INSERT INTO names (name) VALUES (%s)"
# Preparing the statement is done only once. It can be done before
# without data, or later with data.
curprep.execute(prepstmt)
# Insert 3 records
names = ('Geert', 'Jan', 'Michel')
for name in names:
curprep.execute(prepstmt, (name,))
cnx.commit()
# We use a normal cursor issue a SELECT
output.append("Inserted data")
cur.execute("SELECT id, name FROM names")
for row in cur:
output.append("%d | %s" % (row[0], row[1]))
# Cleaning up, dropping the table again
cur.execute(stmt_drop)
cnx.close()
return output
if __name__ == '__main__':
#
# Configure MySQL login and database to use in config.py
#
from config import Config
config = Config.dbinfo().copy()
out = main(config)
print('\n'.join(out))
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