I'm trying to insert a string that was received as an argument into a sqlite db using python:
def addUser(self, name):
cursor=self.conn.cursor()
t = (name)
cursor.execute("INSERT INTO users ( unique_key, name, is_online, translate) VALUES (NULL, ?, 1, 0);", t)
self.conn.commit()
I don's want to use string concatenation because http://docs.python.org/library/sqlite3.html advises against it.
However, when I run the code, I get the exception
cursor.execute("INSERT INTO users ( unique_key, name, 开发者_如何学JAVAis_online, translate) VALUES (NULL, ?, 1, 0);", t)
pysqlite2.dbapi2.ProgrammingError: Incorrect number of bindings supplied. The current statement uses 1, and there are 7 supplied
Why is Python splitting the string by characters, and is there a way to prevent it from doing so?
EDIT:
changing to t = (name,)
gives the following exception
print "INSERT INTO users ( unique_key, name, is_online, translate) VALUES (NULL, ?, 1, 0)" + t
exceptions.TypeError: cannot concatenate 'str' and 'tuple' objects
You need this:
t = (name,)
to make a single-element tuple.
Remember, it's commas that make a tuple, not brackets!
Your t
variable isn't a tuple, i think it is a 7-length string. To make a tuple, don't forget to put a trailing coma:
t = (name,)
精彩评论