Question

I am making a payroll system and I bought the B3 tft from zktechnology and would like to arrange the record.

Currently I can pull the data from the biometric with this format:

Count   EmpID   InOutMode   Date
1       1       0           8/20/2012 07:49:01
2       1       1           8/20/2012 12:08:21
3       1       0           8/20/2012 12:43:10
4       1       1           8/20/2012 17:56:15
5       2       0           8/20/2012 07:53:11
6       2       1           8/20/2012 12:02:01
7       2       0           8/20/2012 12:39:56
8       2       1           8/20/2012 17:20:43
9       1       0           8/21/2012 08:10:20
10      1       1           8/21/2012 12:01:26
11      1       0           8/21/2012 13:03:11
12      1       1           8/21/2012 17:11:15
13      2       0           8/21/2012 07:48:26
14      2       1           8/21/2012 12:14:58
15      2       0           8/21/2012 12:59:31
16      2       1           8/21/2012 17:20:12

InOutMode:

0 = In, 1 = Out

Now, I want to convert the data above like this:

EmpID   Date        AM_In       AM_Out      PM_In       PM_Out
1       8/20/2012   07:49:01    12:08:21    12:43:10    17:56:15
2       8/20/2012   07:53:11    12:02:01    12:39:56    17:20:43
1       8/21/2012   08:10:20    12:01:26    13:03:11    17:11:15
2       8/21/2012   07:48:26    12:14:58    12:59:31    17:20:12

So I can save it to the database with EmpID, Date, AM_In, AM_Out, PM_In, PM_Out fields.

I saw a similar code here before but I can’t remember the URL.

Update:

VB.net code or sql in ms access format is acceptable.

Answer 1

It might be easiest to create two cross tabs and a query to join them to the available dates and employees.

1 AM Crosstab

TRANSFORM Min(tm.Date) AS MinOfDate
SELECT Format([Date],"dd/mm/yyyy") AS dt, tm.EmpID
FROM tm
GROUP BY Format([Date],"dd/mm/yyyy"), tm.EmpID
PIVOT tm.InOutMode;

2 PM Crosstab

TRANSFORM Max(tm.Date) AS MinOfDate
SELECT Format([Date],"dd/mm/yyyy") AS dt, tm.EmpID
FROM tm
GROUP BY Format([Date],"dd/mm/yyyy"), tm.EmpID
PIVOT tm.InOutMode;

Where tm is the name of your table.

You can then join these up.

SELECT Alldates.dt, 
       Alldates.empid, 
       am.[0] AS [Am In], 
       am.[1] AS [Am Out], 
       pm.[0] AS [Pm In], 
       pm.[1] AS [Pm Out] 
FROM   ((SELECT DISTINCT Format([date], "dd/mm/yyyy") AS dt, 
                        empid 
        FROM   tm) AS Alldates 
        LEFT JOIN am 
               ON ( Alldates.empid = am.empid ) 
                  AND ( Alldates.dt = am.dt )) 
       LEFT JOIN pm 
              ON ( Alldates.empid = pm.empid ) 
                 AND ( Alldates.dt = pm.dt );