Question

我正在编写一个脚本来查询本周内包含某个网址的文章。我无法插入网址，尝试使用LIKE过滤器检查某个网址。我尝试插入，因为我做了已发布的开始和结束周，但它似乎与双插值混淆。

澄清一下，脚本在%{http://foo.com/bar}%部分查询

时收到错误

start_week = today - datetime.timedelta(today.weekday())
end_week = start_week + datetime.timedelta(7)

cursor = db.cursor(MySQLdb.cursors.DictCursor)
cursor.execute("""SELECT * FROM table WHERE url LIKE '%{http://foo.com/bar}%'""", [start_week, end_week])
result = cursor.fetchall()
print len(result)

Answer 1

我要做的是在字符串中添加百分比，然后在sql查询中插入

Answer 2

pythong不喜欢括号，它与嵌套插值混淆。我建议在字符串中添加％s并在查询中插入它。

    bar = '%http://foo.com/bar%'
    cursor = db.cursor(MySQLdb.cursors.DictCursor)
    cursor.execute("""SELECT * FROM table WHERE url LIKE %s""", [bar])
    result = cursor.fetchall()

享受！

Answer 3

查询语句中有两个WHERE运算符。

在此行中将第二个WHERE更改为AND：

cursor.execute("""SELECT * FROM table WHERE published>=%s AND published<=%s WHERE url LIKE '%{$http://foo.com/bar}%'""", [start_week, end_week])

应该是这样的：

cursor.execute("""SELECT * FROM table WHERE published>=%s AND published<=%s AND url LIKE '%{$http://foo.com/bar}%'""", [start_week, end_week])

你如何在python中使用url执行mysql包含？

3 个答案: