Question

我在调用此SQL命令时遇到问题，我得到：'OperationalError：near“'0-0'”：语法错误'

我的电话如下：

users_db_curs.execute("INSERT INTO `"+table_name+"` (uID, username, password, creator_exp, location) 
VALUES ('"+user_ID+"', '"+username+"', '"+password+"', '"+creator_exp+"', '0-0')")

Answer 1

我测试了你的语句，它应该可以正常工作如果你的不同变量被正确格式化为直接连接在语句字符串litteral中：

>>> import sqlite3
>>> conn = sqlite3.connect(':memory:')
>>> cu = conn.cursor()
>>> cu.execute('create table foo (uID, username, password, creator_exp, location)')
<sqlite3.Cursor object at 0x7fccc2c115e0>
>>> user_ID='a'
>>> username='b'
>>> password='c'
>>> creator_exp='d'
>>> table_name='foo'
>>> cu.execute("INSERT INTO `"+table_name+"` (uID, username, password, creator_exp, location) VALUES ('"+user_ID+"', '"+username+"', '"+password+"', '"+creator_exp+"', '0-0')")
<sqlite3.Cursor object at 0x7fccc2c115e0>

当你得到syntax error时

It's probably not the case：

>>> username="'barf"
>>> cu.execute("INSERT INTO `"+table_name+"` (uID, username, password, creator_exp, location) VALUES ('"+user_ID+"', '"+username+"', '"+password+"', '"+creator_exp+"', '0-0')")
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
sqlite3.OperationalError: near "barf": syntax error

所以请改用formatted parameters。

>>> cu.execute("INSERT INTO `"+table_name+"` (uID, username, password, creator_exp, location) VALUES (?, ?, ?, ?, '0-0')", 
(user_ID, username, password, creator_exp))
<sqlite3.Cursor object at 0x7fccc2c115e0

Answer 2

con = sqlite.connect(db_name)
cur = con.cursor()

with con:
   cur.execute("INSERT INTO ? VALUES(?, ?, ?, ?, ?)",
       (table_name, user_ID, username, password, creator_exp))

应该工作了您应该阅读Zetcode's tutorial

python / SQL语法问题

2 个答案: