no_tr  |  emp_id  | emp_name  |  date    | time_arrival  |
1      | 10121201 | Steven    | 1/1/2017 | 50            |
2      | 10121202 | Jacob     | 1/1/2017 | 25            |
3      | 10121201 | Steven    | 2/1/2017 | 60            |
4      | 10121203 | Parko     | 2/1/2017 | 40            |
5      | 10121202 | Jacob     | 3/1/2017 | 30            |

No  | Employee ID   | Employee Name  |  1  |  2  |  3  | ... |  31 | <==// the number of columns in accordance with the number of dates in each month
1   | 10121201      | Steven         | 50  | 60  |  -  | ... |  -  |
2   | 10121202      | Jacob          | 25  |  -  | 30  | ... |  -  |
3   | 10121203      | Parko          | -   | 40  |  -  | ... |  -  |