Discussion Board for collaboration on QlikView Scripting.
Can anybody explain what the advantage is of using the expression 'autonumberhash128 versus the 'classic' autonumber?
This is a very good thread on the subject
autonumberhash128 VS autonumber
i read the thread, but i still need more about it?
Autonumber creates 1,2,3,4,5,6,7,8 etc Autonumberhash aims to create a unique hashed record i.e a primary key unfortunately it does not create a perfect key
Returns a unique integer value for each distinct evaluated value of expression encountered during the script execution.
Calculates a 128-bit hash of the combined input expression values and the returns a unique integer value for each distinct hash value encountered during the script execution.
Thanks for reply..
you mean to say Autonumberhash will not give a unique key all the time.