Question

请帮忙！我想知道下面提到的原始oracle查询的内连接Queryset： -

从PubEv中选择PubC.component，PubC.comp_version，PubC.publish_id，PubEv.published_date 内联盟PubC 在PubC.publish_id = PubEv.publish_id 哪里 PubC.target_branch ='polaris_dev'和PubC.component ='aaa' 由PubEv.published_date desc;

命令

django项目中提到的模型如下： -

class PubEv(models.Model):
    vob = models.CharField(max_length=20)
    target_branch = models.CharField(max_length=60)
    publish_id = models.IntegerField(primary_key=True)
    target_branch_label = models.CharField(max_length=50, blank=True, null=True)
    main_release = models.CharField(max_length=10, blank=True, null=True)
    published_by = models.CharField(max_length=16)
    published_date = models.DateTimeField()
    publish_ddts = models.CharField(max_length=10)
    unpublished = models.CharField(max_length=1)
    changeset = models.ForeignKey('CcChangesets')

    class Meta:
        managed = False
        db_table = 'publish_events'

class PubC(models.Model):
    publish_id = models.IntegerField(primary_key=True)
    vob = models.CharField(max_length=20)
    target_branch = models.CharField(max_length=60)
    component = models.CharField(max_length=40)
    comp_version = models.CharField(max_length=40)

    class Meta:
        managed = False
        db_table = 'publish_contents'

Answer 1

我不认为在Django ORM中可以做到这一点。如果你建立OneToOne关系而不是试图将它们保持为无关的主键字段，你会好得多。

Django Inner Join Queryset，其中两个表之间没有外键关系

1 个答案: