Sort Internal table based on another internal table

Hello All,
My Requirement is :
I have two internal tables itab1 and itab2. itab1 has partner_number along with some more fields/columns. Based on the partner_numbers of the itab1 i write a query to get the values for partner_last_name and central_block_flag from the table but000 and i fill these values into a new itab2.
Sort itab2 by partner_last_name and central_block.
Now how do I sort itab1 based on the sorted itab2-partner_number. I need to have itab1 sorted similar to the order in the itab2.
How do i do this?
Please let me know if you need more details.Looking forward for your support.
Regards,
Harish P M

Hello Micky,
Thank you for your early reply.
I have this scenario wherein i need to sort a existing internal table itab1 of type 'bapibus1006_relations' based on the 'Partner last name ' and 'Inactive/Active Flag'. These two fields are not available in this itab1 and so i need to create itab2 after a query on table but000.
Sorting itab2 is , first sort itab2 based on the 'Active flag' and then sort this itab2 again by 'Partner last name'(ascending order).
Finally when i get my sorted itab2 i would have to ensure that my objective of sorting itab1 is obtained.
I guess i sound better now.
Would be helpful if you could reply.
Regards,
Harish P M

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