excuse me,
how to delete duplicate data as the example below, with X + +,
if SerialID and Code, have the same value, then the first data (viewed from date) must be deleted.
thank you.
edo.
| serialId | date | code |
| 12 | 1/12/2014 | RM |
| 13 | 1/10/2014 | RM |
| 12 | 1/13/2014 | RM |
| 12 | 1/14/2014 | ASM |