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Python insert into SQL unicode error

I have the following error :

 db = MySQLdb.connect(host="localhost", # host
 user="root", # username
 passwd="", # password
 db="test",charset='utf8') #
 cur = db.cursor() 
 x = "испытание" # random unicode characters
 sql = "INSERT INTO links(test) VALUES(N'%s');"
 lst = ( x ) #x is unicode data
 cur.execute(sql,lst)

The error I get is : MySQL Error [1064]: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax ...

Answer*

what value are you trying to insert? nothing. what does N'%s' represents. I guess you are trying to insert from a form so I have work on this code, tested it and is running.
First create database with 2 column employee_id and lastname. Then test this code. it will work for you. If you get it right please tick this as answer. Sectona...



 #!c:/python25/python
 
 import MySQLdb
 
 # Import modules for CGI handling 
 import cgi, cgitb 
 
 # Create instance of FieldStorage 
 form = cgi.FieldStorage() 
 
 # get form data from form field
 
 employee_id = form.getvalue('employee_id')
 lastname = form.getvalue('lastname')
 
 
 
 # Open database connection
 db = MySQLdb.connect("localhost","sectona","sectona90","sectona_db" )
 
 # prepare a cursor object using cursor() method
 cursor = db.cursor()
 
 
 sql = "INSERT INTO EMPLOYEE(employee_id, \
 lastname) \
 VALUES ('%s', '%s')" % \
 (employee_id, lastname)
 
 try:
 # Execute the SQL command
 cursor.execute(sql)
 # Commit your changes in the database
 db.commit()
 except:
 # Rollback in case there is any error
 db.rollback()
 
 # disconnect from server
 db.close()
 print "Content-type:text/html\r\n\r\n"
 print '<html>'
 print '<body>'
 print '<h2>Data Submitted Successfully</h2>'
 print "<b>Employee Identity:</b> %s<br>" % (employee_id)
 print "<b>Last Name:</b> %s<br>" % (lastname)
 
 print '</body>'
 print '</html>'

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Note this code suffers from SQL-injection. Prefer to use parameterised queries. Also HTML-injection (XSS).

bobince
– bobince

2015年01月23日 15:18:08 +00:00
Commented Jan 23, 2015 at 15:18

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Python insert into SQL unicode error

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