Question

我有一个问题，我正在尝试通过在python和SQLite中对rowid进行比较来对用户名电子邮件的用户名进行验证，这里是代码：

username = self.txtUsername.GetValue()
email =  self.txtEmail.GetValue()
UsernameE  = self.conn.execute("SELECT rowid,* FROM tblPlayers WHERE p_Username="
  + username)
EmailU = self.conn.execute("SELECT rowid,* FROM tblPlayers WHERE p_Email=" + email)

错误是：

> UsernameE  = self.conn.execute("SELECT rowid,* FROM tblPlayers WHERE p_Username="
      + username)
sqlite3.OperationalError: no such column: "what i inserted in the username"

Answer 1

您的SQL格式不正确，因为您不会在用户名值后关闭引号。但是你不应该这样做：你应该使用参数：

self.conn.execute("SELECT rowid,* FROM tblPlayers WHERE p_Username=? ", (username,))

另请注意，执行操作不会返回值：您需要获取它，例如使用fetchone()。

Answer 2

尝试在用户名中添加引号：

UsernameE  = self.conn.execute("SELECT rowid,* FROM tblPlayers WHERE p_Username = '" + username + "'")

SQLite ERROR没有这样的专栏Python

2 个答案: