我正在尝试编写一个函数,该函数placeholder()
采用下面编写的函数中编写的变量,然后在MySQL查询中使用它。我在下面写了一个例子:
import MySQLdb
connection = MySQLdb.connect(host = "localhost", user = "root",
passwd = "", db = "cars")
cursor = connection.cursor()
def placeholder(placeholder_variable):
sql = "TRUNCATE TABLE %s"
cursor.execute(sql, placeholder_variable)
placeholder('car_brands')
当我尝试运行此程序时,出现以下错误:
ProgrammingError: (1064, "You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ''car_brands'' at line 1")
这是针对大学作业的,必须使用placeholder('variable')
格式来接收变量。我已经花了几个小时在互联网上搜索试图找到解决方案,请帮助:/