Question

|period_id | date_from | date_to | |----------|------------|---------------| | 1 | 16/11/2018 | 17/11/2018 | |---------------------------------------|表

sessionrange

| sessionrange_id | session | session_from | session_to | |-----------------|---------|--------------|------------| | 1 | A | 04:00:00 | 05:10:00 | | 2 | B | 12:00:00 | 12:45:00 | | 3 | C | 15:00:00 | 15:30:00 | | 4 | D | 18:00:00 | 18:30:00 | | 5 | E | 19:00:00 | 19:45:00 | --------------------------------------------------------表

timsetup

| period_id | sessionrange_id | |-----------|-----------------| | 1 | 1 | | 1 | 2 | | 1 | 3 | | 1 | 4 | | 1 | 5 | ------------------------------表

checktime

|userid | tapping_time | |---------|----------------------| |2120 | 16/11/2018 04:20:04 | |2120 | 16/11/2018 12:26:06 | |2120 | 16/11/2018 12:26:10 | |2120 | 16/11/2018 15:35:21 | |2120 | 16/11/2018 18:29:11 | |2120 | 16/11/2018 19:40:10 | |2120 | 17/11/2018 05:05:15 | |2120 | 17/11/2018 12:11:53 | |2120 | 17/11/2015 15:24:42 | |2121 | 16/11/2015 04:18:47 | |2121 | 16/11/2015 12:21:27 | |2121 | 16/11/2015 15:45:30 | |2121 | 16/11/2015 15:45:38 | |2121 | 16/11/2015 18:27:37 | |2121 | 16/11/2015 19:32:15 | |2121 | 17/11/2015 05:09:08 | |2121 | 17/11/2015 12:24:08 | |2121 | 17/11/2015 15:13:08 | |2121 | 17/11/2015 19:32:08 | |2121 | 17/11/2015 19:32:15 |表，其中包含来自指纹扫描仪的数据

SELECT userid, Format(datevalue, 'yyyy-mm-dd') AS d, Format(TimeValue(Min(t.CHECKTIME))) As timevalue, session
FROM (
    SELECT session_from, session_to, date_from, date_to, session 
    FROM ((timesetup i LEFT JOIN dateperiod d ON i.period_id = d.period_id) 
        LEFT JOIN sessionrange q ON i.sessionrange_id = q.sessionrange_id)
    ) As s 
INNER JOIN (SELECT Format(DateValue(CHECKTIME)) As datevalue, Format(TimeValue(CHECKTIME)) As tapping, u.userid, CHECKTIME 
    FROM CHECKINOUT c 
    LEFT JOIN USERINFO u ON c.userid = u.userid 
    WHERE (Format(DateValue(c.CHECKTIME), 'yyyy-mm-dd')  BETWEEN '$from' AND '$to')) t ON ((t.datevalue BETWEEN s.date_from AND s.date_to) AND (t.tapping BETWEEN s.session_from AND s.session_to)) 
GROUP BY userid, datevalue, session, u.Badgenumber 
ORDER BY userid, datevalue, Format(TimeValue(Min(t.CHECKTIME)))

当前查询已经按会话从某个日期的一个用户的多个轻敲时间中进行过滤，并从不在会话范围中的检查时间进行过滤

| userid  | d          | tapping_on | session |
|---------|------------|------------|---------|
| 2120    | 16/11/2018 | 04:20:04   | A       |
| 2120    | 16/11/2018 | 12:26:06   | B       |
| 2120    | 16/11/2018 | 18:29:11   | D       |
| 2120    | 16/11/2018 | 19:40:10   | E       |
| 2120    | 16/11/2018 | 05:05:15   | A       |
| 2120    | 17/11/2018 | 12:11:53   | B       |
| 2120    | 17/11/2018 | 15:24:42   | C       |
| 2121    | 16/11/2015 | 04:18:47   | A       |
| 2121    | 16/11/2015 | 12:21:27   | B       |
| 2121    | 16/11/2015 | 18:27:37   | D       |
| 2121    | 16/11/2015 | 19:32:15   | E       |
| 2121    | 17/11/2015 | 05:09:08   | A       |
| 2121    | 17/11/2015 | 12:24:08   | B       |
| 2121    | 17/11/2015 | 15:13:08   | C       |
| 2121    | 17/11/2015 | 19:32:08   | E       |
|---------------------------------------------|

上述查询的结果：

------------------------------------------------------------------------------------
| userid | date         | A         | B         | C         | D         | E
|--------|--------------|-----------|-----------|-----------|-----------|---------- |
| 2120   | 16/10/2018   | 04:20:04  | 12:26:06  | NULL      | 18:29:11  | 19:40:10  |
| 2120   | 17/10/2018   | 05:05:15  | 12:11:53  | 15:24:42  | NULL      | NULL      |
| 2121   | 16/10/2018   | 04:18:47  | 12:21:27  | NULL      | 18:27:37  | 19:32:15  |
| 2121   | 17/10/2018   | 05:09:08  | 12:24:08  | 15:13:08  | NULL      | 19:32:08  |
------------------------------------------------------------------------------------

但是我需要分组的不同结果

所需结果

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return new MaterialApp(
        title: 'Flutter Demo',
        theme: new ThemeData(
          primarySwatch: Colors.blue,
        ),
        home: new Scaffold(
          body: Row(
            children: <Widget>[
              Flexible(
                  child: Column(
                children: <Widget>[
                  Container(
                    child: TextField(),
                  )
                  //container
                ],
              ))
            ],
            mainAxisAlignment: MainAxisAlignment.spaceBetween,
          ),
        ));
  }
}

过滤是相同的，但分组方式不同（按用户ID，日期，会话）。如何自定义当前查询以在Access女士中产生期望的结果？

Answer 1

一种方法是在您选择的语句中执行5种情况。您可以做类似的事情

(Case When session_from > 04:00:00 and session_to < 05:10:00 Then tapping_on End) A
(Case When session_from > 05:00:00 and session_to < 06:10:00 Then tapping_on End) B

等

本质上，您先创建列，然后在其中显示所需的任何值，在这种情况下，轻按[on]。

按时间范围分组结果

上述查询的结果：

所需结果

1 个答案: