topic Re: Generate random XSTRING in Application Development and Automation Discussions

Generate random XSTRING

oliver_am — Fri, 24 May 2019 09:28:39 GMT

Hi,
I need to generate a random xstring with lenght 32.

Completely random, not using FM like CMS_API_GENERAL_GUID_CREATE that generate data like this, "sequential":

BB5242AF6F291EE99FC0B89A99310BB6
BB5242AF6F291EE99FC0B901667F0BB6
BB5242AF6F291EE99FC0C7483C194BDF

Any idea how to do it?

Thanks

matt — Fri, 24 May 2019 10:08:41 GMT

Use one of the documented techniques for generating a random number in ABAP and then convert it to hex?

oliver_am — Fri, 24 May 2019 10:12:50 GMT

A solution could be generate random 0 to F and concatenate 32 times...

oliver_am — Fri, 24 May 2019 10:17:52 GMT

but how to ensure it will have a lenght of 32 ?

Tomas_Buryanek — Fri, 24 May 2019 10:58:53 GMT

Two important things to note:

Length of x + xstring (byte-like data types) is usually measured by bytes. You are probably mentioning its separate characters representation length.
GUID_CREATE (called in your FM, BTW replaced by UUID - cl_system_uuid) is generating "globally unique ID". You will never get two same numbers. But by generating random XSTRING you might get same number multiple times.

matt — Fri, 24 May 2019 11:15:22 GMT

Generate a random integer between 0 and 15, convert to hex, 32 times should do it.