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DataLogger-Generic/web_db/mysql-connector-python-2.1.4/examples/multi_resultsets.py
2016-11-01 16:56:22 -05:00

101 lines
3.0 KiB
Python

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# MySQL Connector/Python - MySQL driver written in Python.
# Copyright (c) 2009, 2014, 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 Connector/Python showing:
* sending multiple statements and iterating over the results
"""
import mysql.connector
def main(config):
output = []
db = mysql.connector.Connect(**config)
cursor = db.cursor()
# Drop table if exists, and create it new
stmt_drop = "DROP TABLE IF EXISTS names"
cursor.execute(stmt_drop)
stmt_create = (
"CREATE TABLE names ("
" id TINYINT UNSIGNED NOT NULL AUTO_INCREMENT, "
" name VARCHAR(30) DEFAULT '' NOT NULL, "
" info TEXT DEFAULT '', "
" age TINYINT UNSIGNED DEFAULT '30', "
" PRIMARY KEY (id))"
)
cursor.execute(stmt_create)
info = "abc" * 10000
stmts = [
"INSERT INTO names (name) VALUES ('Geert')",
"SELECT COUNT(*) AS cnt FROM names",
"INSERT INTO names (name) VALUES ('Jan'),('Michel')",
"SELECT name FROM names",
]
# Note 'multi=True' when calling cursor.execute()
for result in cursor.execute(' ; '.join(stmts), multi=True):
if result.with_rows:
if result.statement == stmts[3]:
output.append("Names in table: " +
' '.join([name[0] for name in result]))
else:
output.append(
"Number of rows: {0}".format(result.fetchone()[0]))
else:
output.append("Inserted {0} row{1}".format(
result.rowcount,
's' if result.rowcount > 1 else ''))
cursor.execute(stmt_drop)
cursor.close()
db.close()
return output
if __name__ == '__main__':
config = {
'host': 'localhost',
'port': 3306,
'database': 'test',
'user': 'root',
'password': '',
'charset': 'utf8',
'use_unicode': True,
'get_warnings': True,
}
out = main(config)
print('\n'.join(out))