我有一个表状态,其中包含多个表的状态: TABLE_NAME | STATUS_ID | STATUS_NAMETAB_1然后我有表TAB_1: ID | STATUS_ID | TAB_VALUE 1 | 1 | Value1 当我想要检索带有状态的表值时tab_1 t
JOIN statuses s ON (s.status_id=t.status_id AND s.table_name='TAB_
作为mongodb的老手,我创建了以下结构: name: str, }
# author and receiver referDocument
end
include Mongoid::Document
endUser <--- 1: N via author---> Gift <--- N:1 via receiv