i have a database that have i want to loop through\update all rows and edit a field .
the filed will need to get a number that is depened on the previews 3 rows.
field1 field2 field3(the filed that i want to change)
lets asuum that in each row i want to write the sum of filed2 of the last 3 rows
so in that example i will write in the 4th row 6.5 .
plz help me :)
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