Check internal table for some value

HI,

I have internal table with 3 deep structure inside and i want to scan the table if i have field type

tims search if the have ':' if so omit it, and the same for dats '-'.

What is the best way to do that?

type                                    data type
SWW_CD 	        DATS
SWW_CT	        TIMS

e.g.

IF I have time like

18:20:33

i want to turn it to 182033

and the same for date

2009-01-28

20090128

Regards