oracle 语法
QueryWrapper<Xxxx> eq = new QueryWrapper<Xxxx>().select("NVL(sum(AAA),0) AS AA","NVL(sum(BBB),0) AS BB","NVL(sum(CCC),0) AS CC").eq("T_ID", id).apply("CREATE_TIME between to_date({0}, 'YYYY-MM-DD') and to_date({1}, 'YYYY-MM-DD')", startDay,endDay);Map<String, Object> map = xxxService.getMap(eq);