Question

运行代码时出现以下错误，我不知道原因：

Traceback (most recent call last):
  File "python", line 27, in <module>
  File "python", line 25, in members_of_circles
sqlite3.OperationalError: no such column: circleCat.name

代码：

import sqlite3
con = sqlite3.connect(":memrory:")
cur = con.cursor()
def creat_tables () :
    cur.execute("CREATE table circleCat (id INTEGER PRIMARY KEY, name TEXT, 
description TEXT)")
cur.execute("CREATE table members( id INTEGER PRIMARY KEY, name TEXT, level 
TEXT, crcl TEXT)")


def add_a_member(name, level, crcl):
    cur.execute("INSERT INTO members (name, level, crcl) VALUES (?, ?, ?)" ,
(name, level, crcl));

def add_a_circle(name, description):
    cur.execute("INSERT INTO circleCat (name, description) VALUES (?, ?)" ,
(name, description));

creat_tables ()

add_a_circle("Gaming", "for Gaming")

add_a_member("hossam", "beginner", "Gaming")

def members_of_circles():
  cur.execute("SELECT name FROM members WHERE members.crcl = 
circleCat.name")

members_of_circles()

Answer 1

您的选择查询错误。试试这个：

def members_of_circles():
    cur.execute("SELECT m.name FROM members m, circleCat c WHERE m.crcl = c.name")

sqlite3.OperationalError：没有这样的列：circleCat.name

1 个答案: