Trim Function is deleting the required data in table

Hi All,

I have a field with length 30 char, when I am  executing the job the field is getting a value with 29 char (19 characters + 10 empty spaces) in BODS.

Now I am using Trim Functions to remove the empty spaces on the right side of the field, the i can see that the particular value is not getting populated in the table.

Note: Rtrim_Blanks(' Field_Name'), I have used the following function, then I am unable to get the value.

Could anyone help me with this please