使用 MySQL 数据库中的 Python 选择数据时使用“%s”附近错误的正确语法

Question

Running this code

res = cursor.execute("SELECT `password` FROM `players` WHERE `username` = %s", usern) 

I get this error:

mysql.connector.errors.ProgrammingError: 1064 (42000): 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 '%s' at line 1

Answer 1

The parametrized queries expect a tuple as an argument:

query = """SELECT `password` FROM `players` WHERE `username` = %s"""
res = cursor.execute(query, (usern, ))