I have a table named transaction_detail which contains id_transd, id_trans, id_cust and inputtime.
id_transd | id_trans | id_cust | inputtime |
1 | 1 | 1 | 2013-04-15 16:55:58 |
2 | 1 | 1 | 2013-05-15 16:55:58 |
3 | 1 | 1 | 2013-06-15 16:55:58 |
4 | 2 | 2 | 2013-06-15 16:55:58 |
...
I want to get the amount of the inputtime which have the same id_cust and id_trans.
For example : when admin wants to count how long the job done on one costumer then admin need to click on the name of the customer and system will calculate the date.
|No.| Name | Process | Time |
|1. | D-net | by sales | 2013-04-15 16:55:58 |
| | | by sadmin | 2013-05-15 16:55:58 |
| | | by technic | 2013-06-15 16:55:58 |
I've tried this code
SELECT t.* datediff(DAY, t.inputtime, nextdate) AS Days_Between
FROM
(SELECT t.*,
(SELECT min(inputtime)
FROM transaksi_detail t2
WHERE t.id_cust = t2.id_cust
AND t.id_trans = t2.id_trans
AND t.inputtime < t2.inputtime) AS nextdate
FROM transaction_detail t)t
But won't work, It says :
Warning: mysql_fetch_array() expects parameter 1 to be resource, boolean given in F:\htdocs\indosat2\hitung_tanggal2.php on line 20