mysql update a column with an int based on order
SET @rownumber = 0; update mytable set Moneyorder = (@rownumber:=@rownumber+1)order by MoneyOrder ascor to do it in a single query you can try
update mytable targetjoin( select id, (@rownumber := @rownumber + 1) as rownum from mytable cross join (select @rownumber := 0) r order by MoneyOrder asc) source on target.id = source.id set Moneyorder = rownum
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Updating column so that it contains the row position
SET @counter = 0;UPDATE my_tableSET MoneyOrder = @counter := @counter + 1ORDER BY Money;SET @counter = 0;UPDATE my_tableSET QuantityOrder = @counter := @counter + 1ORDER BY Quantity;