troubleshooting Question

generate random number that not duplicate

Avatar of teera
teera asked on
PHPMicrosoft ExcelSQL
4 Comments1 Solution561 ViewsLast Modified:
how can I generate random number that not duplicate
like

   1234-5482-4578
   7848-5875-7848
   7845-8585-8471

i want to put in one  colum on excel
if ex cel can not can i generate on my sql
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