lists = []
lists = cursor.execute(
"select a.employee_id,a.first_name,"
"c.breakfast_count, b.lunch_count,"
"d.dinner_count from qpscsmas_employee_details a,"
"qpscsmas_emp_lunch b,"
"qpscsmas_emp_breakfast c,"
"qpscsmas_emp_dinner d "
"where a.rfidcardno = %s "
"and b.rfidcardno = %s "
"and c.rfidcardno = %s "
"and d.rfidcardno = %s,"
"['s','s','s','s']"
)
print lists
上面的查询给了我一个空列表。在
问题是它也没有显示任何错误。在
当我给出精确的值来代替参数时,它在MySQL中运行得很好
首先,您需要从参数列表中删除双引号,并用逗号将其与查询字符串分隔开,例如:
执行查询后,需要获取行,请参见Executing custom SQL directly。您可以获取下一个(
cursor.fetchone()
)或获取所有行(cursor.fetchall()
)。在示例:
^{pr2}$此清理后的查询应该可以工作:
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