PLz help me, Its URGENT WORK

Hi all,

In My flat file contains data

Cost center|Posting Date|transaction date

In our flat file contains

Cost center|Posting Date|transaction date|D/C|

z456 | /05/2005 |5/6/2005 |'D

y789 |8/9/2005 |4/5/2005 |C

iam uploding the data into table ITAB

Error - ITABE

Sucess- ITABS

once upload data into ITAB

loop at itab

Here i want validations

Error dates are stored in ITABE ' /05/2005'

Error cost center stored in z456 & y789

Error D/C stored in 'D

How to validate and stored in the ERROR ITAB

Please send the Guide lines or logic

I look forward to your reply

Advanced thanks to them

Regards

Raja Sekhar.T