我试图使用executemany函数从一行中的所有行中获取一些WHERE约束

import sqlite3

con = sqlite3.connect('test.db')
cur = con.cursor()

cur.execute('CREATE TABLE IF NOT EXISTS Genre (id INTEGER PRIMARY KEY, genre TEXT NOT NULL)')

values = [
        (None, 'action'),
        (None, 'adventure'),
        (None, 'comedy'),
        ]


cur.executemany('INSERT INTO Genre VALUES(?, ?)', values)

ids=[1,2]

cur.executemany('SELECT * FROM Genre WHERE id=?', ids)

rows = cur.fetchall()
print rows

错误

cur.executemany('SELECT * FROM Genre WHERE id=?', ids)
sqlite3.ProgrammingError: You cannot execute SELECT statements in executemany()

我正在试图弄清楚如何正确使用WHERE _ IN _语句

定义:

c.execute('''CREATE TABLE IF NOT EXISTS tab (
    _id integer PRIMARY KEY AUTOINCREMENT,
    obj text NOT NULL
    ) ;''')

我正在尝试做这样的事情:

list_of_vars=['foo','bar']
statement="SELECT * FROM tab WHERE obj IN (?)"
c.execute(statement,"'"+"','".join(list_of_vars)+"'")

或者,我也试过这个,直接评估上面的内容

statement="SELECT * FROM tab WHERE obj IN (?)"
c.execute(statement,"'foo','bar'")

我得到的错误是:

sqlite3.ProgrammingError: Incorrect number of bindings supplied. The current statement uses 1, and there are 9 supplied

这给了我一个错误.当我这样做时,它可以工作,但不建议这样做,因为它容易受到SQL注入攻击.

statement="SELECT * FROM tab WHERE obj IN ("+"'"+"','".join(statement)+"'"+")

如何在Python中编写SQL查询来选择Python列表中的元素？

例如，我有 Python 字符串列表

Names=['name_1','name_2',..., 'name_n']

和 SQLite_table。

我的任务是找到最短路线

SELECT elements FROM SQLite_table WHERE element_name LIKE '%name_1%'
SELECT elements FROM SQLite_table WHERE element_name LIKE '%name_2%'
...
SELECT elements FROM SQLite_table WHERE element_name LIKE '%name_n%'