如何使用sqlalchemy for sql?

时间:2011-02-02 11:42:34

标签: python sqlalchemy

选择category_id,(从category.id = category_id类别中选择category.name)作为category_name(从(category.id = model.category_id)上的模型连接类别中选择distinct category_id作为category_id)作为R

... self.current_session.query(Model.category_id)。加入(类别).distinct()

但是如何知道category_name?

1 个答案:

答案 0 :(得分:1)

for model, category in self.current_session.query(Model, Category).join(Category).distinct():
    print model.category_id, category.name