Message Mapping (Substring)

Question

Hi All,
I am using a standard substring in my message mapping to get the first 4 characters of the incoming text. This work fine except when the incoming text is less than 4. I get an error.
Is there a way that i can accomplish the above despite the length of the word?
Thank you in Advance,
Danny

Answer 1

Swarup,
I think it won't work. If his string length is 3 or more than 3, then ur solution is good. What happens if the input string length is 1 or 2? do u think will it work? Please correct me if I misunderstood ur code..
Danny,
I would say as suggested as Prateek, write a simple UDF and check for the length and return if it's less than length <=4 or substring if length is >4 . If you don't want to write UDF then
Use Stadard functions
Input -
>length--->greater & Constant(4) ->and ->If then else-->Output
In if then else then part do substring, else part pass input directlty.
And function Accepts two input, first parameter is output of greater, second parameter is Constant(4).
Hope it helps!
raj.