Insert data to a mysql server from python ON PC with windows
after installing mysql server and client(python connector) on my beaglebone, I learn to insert data from python in to mysql server.
All these are done on windows PC.
most data are found in http://www.mysqltutorial.org/python-mysql/
Here is a example on how to connect to a data base from python:
import mysql.connector
from mysql.connector import Error
def connect():
""" Connect to MySQL database """
try:
conn = mysql.connector.connect(host='localhost',
database='iot',
user='root',
password='')
if conn.is_connected():
print('Connected to MySQL database')
except Error as e:
print(e)
finally:
conn.close()
print('Disconnected from MySQL database')
connect()
we use the same method to add a row into greenroom table:
'''
2014/1/28
we connect to mysql databse IOT and query out all rows..
there are still some other query ways...fetchone(), fetchmany()
http://www.mysqltutorial.org/python-mysql-query/
'''
import mysql.connector
from mysql.connector import Error
def connect():
""" Connect to MySQL database """
try:
conn = mysql.connector.connect(host='localhost',
database='iot',
user='root',
password='')
if conn.is_connected():
print('Connected to MySQL database')
cursor = conn.cursor()
cursor.execute("INSERT INTO\
greenroom(device_nr,record_date,record_time,lux,temp,humid)"\
"values(8,'2014-1-29','21:53:00',256,25.4,80)")
conn.commit()
except Error as e:
print(e)
finally:
cursor.close()
conn.close()
print('Disconnected from MySQL database')
#if __name__ == '__main__':
connect()
if we check from command line:
to pass a date or time to cursor, you need to use the %s expression
http://dev.mysql.com/doc/connector-python/en/connector-python-example-cursor-transaction.html
All these are done on windows PC.
most data are found in http://www.mysqltutorial.org/python-mysql/
Here is a example on how to connect to a data base from python:
import mysql.connector
from mysql.connector import Error
def connect():
""" Connect to MySQL database """
try:
conn = mysql.connector.connect(host='localhost',
database='iot',
user='root',
password='')
if conn.is_connected():
print('Connected to MySQL database')
except Error as e:
print(e)
finally:
conn.close()
print('Disconnected from MySQL database')
connect()
To insert or query from a table, we need to use cursor.execute(), I first do a query all:
'''
2014/1/28
we connect to mysql databse IOT and query out all rows..
there are still some other query ways...fetchone(), fetchmany()
http://www.mysqltutorial.org/python-mysql-query/
'''
import mysql.connector
from mysql.connector import Error
def connect():
""" Connect to MySQL database """
try:
conn = mysql.connector.connect(host='localhost',
database='iot',
user='root',
password='')
if conn.is_connected():
print('Connected to MySQL database')
cursor = conn.cursor()
cursor.execute("SELECT * FROM greenroom")
rows = cursor.fetchall()
print('Total Row(s):', cursor.rowcount)
for row in rows:
print(row)
except Error as e:
print(e)
finally:
conn.close()
print('Disconnected from MySQL database')
#if __name__ == '__main__':
connect()
we use the same method to add a row into greenroom table:
'''
2014/1/28
we connect to mysql databse IOT and query out all rows..
there are still some other query ways...fetchone(), fetchmany()
http://www.mysqltutorial.org/python-mysql-query/
'''
import mysql.connector
from mysql.connector import Error
def connect():
""" Connect to MySQL database """
try:
conn = mysql.connector.connect(host='localhost',
database='iot',
user='root',
password='')
if conn.is_connected():
print('Connected to MySQL database')
cursor = conn.cursor()
cursor.execute("INSERT INTO\
greenroom(device_nr,record_date,record_time,lux,temp,humid)"\
"values(8,'2014-1-29','21:53:00',256,25.4,80)")
conn.commit()
except Error as e:
print(e)
finally:
cursor.close()
conn.close()
print('Disconnected from MySQL database')
#if __name__ == '__main__':
connect()
if we check from command line:
to pass a date or time to cursor, you need to use the %s expression
http://dev.mysql.com/doc/connector-python/en/connector-python-example-cursor-transaction.html
留言
張貼留言