我正在尝试从表中删除记录，但是出现“错误的绑定提供错误”

Question

这是我的代码：

def delWorker():
    deleteWorker = input('Please type in the surname of the worker you would like to delete. ')
    c.execute("DELETE FROM employees WHERE lastName = (?)",
              (deleteWorker))
    conn.commit()

我收到'incorrect bindings supplied error'的错误消息

Answer 1

您想要

c.execute("DELETE FROM employees WHERE lastName = (?)", (deleteWorker,)) 

=>注意deleteWorker之后的逗号，这就是创建tuple的原因-括号仅用于消除歧义，因此没有逗号，Python看到的是：

c.execute("DELETE FROM employees WHERE lastName = (?)", deleteWorker) 

因此，当cursor.execute()期望使用tuple或list时，您实际上是在传递字符串。