sqlite3.ProgrammingError:提供的绑定数量不正确.当前语句使用1个，提供了5个 [英] sqlite3.ProgrammingError: Incorrect number of bindings supplied. The current statement uses 1, and there are 5 supplied

问题描述

我一生都无法弄清楚为什么这是失败的，我知道代码很丑，但我只需要将它用于学校项目.

I can not for the life of me figure why this is failing, ugly code I know but I just need to put it out for a school project.

def changeusername(self,i):
    user="self.user=self.username"+str(i)+".get()"
    exec(user)
    print(self.user)
    record1=list(c.execute("SELECT * FROM logins WHERE usernames=(?)",(self.user)))
    print(record1)

我收到此错误:

line 428, in changeusername
record1=list(c.execute("SELECT * FROM logins WHERE usernames=(?)",(self.user)))
sqlite3.ProgrammingError: Incorrect number of bindings supplied. The current statement uses 1, and there are 5 supplied.

我可能错过了一些非常简单的东西，但是嘿:P

I have probably missed something really simple but hey :P

它似乎适用于我的单字符用户名，但是当我尝试使用 ADMIN 用户名时它失败了，因此有 5 个绑定

It seems to work for my single char usernames but it fails when I try the ADMIN username hence the 5 bindings

推荐答案

将参数作为元组传递给 execute().替换:

Pass the argument to execute() as a tuple. Replace:

c.execute("SELECT * FROM logins WHERE usernames=(?)", (self.user))

与:

c.execute("SELECT * FROM logins WHERE usernames=(?)", (self.user, ))

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