Re: How to mask a variable size value

[Peter Dow <petercdow@xxxxxxxxx>]

When you say the value can be of different sizes, what exactly do you mean?

If a field in a file is defined as numeric(6,0), do consider its "size" 
as 6 digits?  Or do you mean the size as in the number of digits not 
counting leading zeros?

For example, if the value of the numeric(6,0) is 000123, is the size 6?  
Or is it 3?

If the latter, something like this should work as long as the value has 
a "size" of at least 4 (e.g. a value of at least 1000):

repeat('*',length(varchar(MyField)) - 4) concat right(varchar(MyField),4)

--
*Peter Dow* /
Dow Software Services, Inc.
909 793-9050
petercdow@xxxxxxxxx
pdow@xxxxxxxxxxxxxx /


On 6/29/2022 2:57 PM, Code 1109 via RPG400-L wrote:
> Hello all, I'd like to seek a suggestion on how using SQL mask a numeric value, the value can be of different sizes so I'd like to only list the last 4 numbers and mask '*' the rest, sample:
> I'd use a Select statement and select the field but before displaying it I want to mask it and only allow for the last 4 digits to be readable
> 1234567890 mask as ******7890 (six asterisks from the beginning)12345678 as ****5678 (four asterisks)
> thanks in advanceRamon S.