标签：sqlachemy 查询 filter func time query id tenant
语句 0.选择select query 1.过滤(where) filter: 空值和非空筛选is_ .isnot dao_session.sub_session().query(XcEbikeGfence2.id).filter(XcEbikeGfence2.type == 1XcEbikeGfence2.deletedAt.is_(None)).all() filter_by: dao_session.session.time_db().query(TConfig).filter_by(service_id=service_id, root_router=router) or筛选 filter(TAlarmTickets.tenant_id == tenant_id, TAlarmTickets.service_id == service_id, or_(TAlarmTickets.state == FixState.TO_FIX.value, TAlarmTickets.state == FixState.FIXING.value and TAlarmTickets.operate_pin == pin)) and筛选 dao_session.session.tenant_db().query( TRidingCard ).filter( TRidingCard.pin == pin, TRidingCard.state == UserRidingCardState.USING.value, TRidingCard.iz_total_times == 0, or_(and_(TRidingCard.last_use_time < zeroToday, TRidingCard.last_use_time > lastToday), TRidingCard.last_use_time is None), ).update( { "remain_times": TRidingCard.rece_times, "last_use_time": datetime.now() } ((TFixTickets.state == 0) | ( (TFixTickets.state == FixState.FIXING.value) & (TFixTickets.operate_pin == pin)))) between范围 filter(TMoveOperation.created_at.between(start_time / 1000, end_time / 1000)) in filter(TAlarmTickets.tenant_id == tenant_id, TAlarmTickets.car_id == car_id, TAlarmTickets.state.in_(FixState.unfixed_list())) = is 值，.isnot filter(XcEbikeGfence2.type == 1,XcEbikeGfence2.deletedAt.is_(None)) 2.groupby分组 .filter( *car_filters).group_by(sql.func.date(XcMieba2CarAnalysis.created_at)) 3.order排序 .order_by(TMoveOperation.end_time.desc()).limit(show_num) 4.having分组筛选 .group_by(User.age).having(User.age < 18) 5.contains m = m.filter(TFixTickets.extra_info.contains(str(tp))) 5.添加筛选条件（多项） query_filter = set() query_filter = query_filter | {TChangeBattery.tenant_id == tenant_id, TChangeBattery.service_id == service_id, TChangeBattery.open_bat_box_time.between(start_time, end_time)} query_filter = set() query_filter.add(TChangeBattery.tenant_id == tenant_id) query_filter.add(TChangeBattery.service_id.in_(service_ids)) if car_id: query_filter.add(TChangeBattery.car_id == car_id) res = dao_session.session.tenant_db().query(TChangeBattery).filter(*query_filter).order_by( TChangeBattery.created_at.desc()).all() 6.批量插入 # 常见函数 from sqlalchemy import func, from sqlalchemy import sql, or_ and_ 计数：func.count 当前时间:func.now() 聚合：func.GROUP_CONCAT,func.group_concat 求和:sql.func.sum 非空：sql.func.ifnull 给空值赋值 sql.func.ifnull(sql.func.sum(XcEbikeUserOrder.cost) / 100, 0) 日期： sql.func.date 绝对值：sql.func.abs标签：sqlachemy,查询,filter,func,time,query,id,tenant 来源： https://www.cnblogs.com/ramsey/p/16590708.html
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