Number of input and output field

Number of input field	:	One
Number of output field	:	One

This transformation function is used to mask data with a specified masking character.

The parameters of this transformation function are:

• Start Index
  The position of the first character to be masked (0-based index).
  • If omitted, the default is 0.
  • If a negative value -N is provided, the start index is calculated as (data_length - N).
• Number of Characters
  The number of characters to mask.
  • If omitted, all characters from the Start Index to the end of the data will be masked.
• Masking Character
  The character used to mask the data.
  • If omitted, the default masking character is 'X'.

Examples of the DataMasking function:

    Input                   : 0123456789
    Start Index             : 4
    Number of Characters    : 3
    Masking Character       : *
    Result                  : 0123***789
 

    Input                   : 0123456789
    Start Index             : 4
    Number of Characters    : 
    Masking Character       : *
    Result                  : 0123******
 

    Input                   : 0123456789
    Start Index             : 
    Number of Characters    : 3
    Masking Character       : *
    Result                  : ***3456789
 

    Input                   : 0123456789
    Start Index             : 
    Number of Characters    : 
    Masking Character       : *
    Result                  : **********
 

    Input                   : 0123456789
    Start Index             : -4
    Number of Characters    : 3
    Masking Character       : *
    Result                  : 012345***9
 

    Input                   : 0123456789
    Start Index             : -4
    Number of Characters    : 
    Masking Character       : *
    Result                  : 012345****