并非所有参数都在 SQL 语句中使用(Python、MySQL)

I get an error on the following Python code:

import mysql.connector
cnx = mysql.connector.connect(user='root', password='',
                          host='127.0.0.1',
                          database='DB')
cursor = cnx.cursor()

Name = "James"
Department = "Finance"
StartYear = 2001
CurrentPos = 2001
Link = ""

add_user = ("INSERT INTO DB.tbluser "
       "(username, department, startyear, currentpos, link) "
       "VALUES (%s, %s, %d, %d, %s)")
data_user = (Name, Department, StartYear, CurrentPos, Link)
cursor.execute(add_user, data_user)
cnx.commit()
cursor.close()
cnx.close()

错误信息是

mysql.connector.errors.ProgrammingError: Not all parameters were used in the SQL statement

你明白为什么吗?

推荐答案

参数标记是 %s 而不是 %d.

add_user = """INSERT INTO DB.tbluser 
              (username, department, startyear, currentpos, link) 
              VALUES (%s, %s, %s, %s, %s)"""