Question

我是django的新手。我想在MySQL数据库中插入一个新行，但是当我尝试执行以下操作时，它会出错。

from django.db import models
...
class Msg(models.Model):
    MsgId = BigIntegerField(length = 20)
    ToUserName = CharField(max_length = 45)
    FromUserName = CharField(max_length = 45)
    Content = TextField(max_length = 1024, blank = True)
...
db_entry = Msg(MsgId=received_MsgId, ToUserName=received_ToUserName,
               FromUserName=received_FromUserName, MsgType=received_MsgType,
               Content=received_Content)
db_entry.save()

以下是我的数据库中存在的表all_massages，以及如何向其中添加新行，以及我还需要做些什么。

+--------------+---------------------+------+-----+---------+-------+
| Field        | Type                | Null | Key | Default | Extra |
+--------------+---------------------+------+-----+---------+-------+
| MsgId        | bigint(20) unsigned | NO   | PRI | NULL    |       |
| ToUserName   | varchar(45)         | NO   |     | NULL    |       |
| FromUserName | varchar(45)         | NO   |     | NULL    |       |
| Content      | text                | YES  |     | NULL    |       |
+--------------+---------------------+------+-----+---------+-------+

Answer 1

如果您更改了模式并执行了syncdb ...它将无法工作....所以删除现有的表并执行syncdb !!

Answer 2

Django文档清楚地指定了如何执行原始SQL查询。 https://docs.djangoproject.com/en/dev/topics/db/sql/#performing-raw-sql-queries

用于直接执行UPDATE，INSERT或DELETE查询。 https://docs.djangoproject.com/en/dev/topics/db/sql/#executing-custom-sql-directly

django向sql插入一行

2 个答案: