PERCENT_RANK

Returns the relative rank of the current row in the partition based on the ORDER BY clause. The displayed percentage ranges from 0.0 to 1.0.

Syntax

PERCENT_RANK() OVER ( [PARTITION BY partition_expression] [ORDER BY order_expression]) → double

• partition_expression: An optional expression that groups rows into partitions.

• order_expression: An optional expression that specifies the order of the rows within each partition.

Examples

PERCENT_RANK example

SELECT "Category", 
  "Descript", 
  "DayOfWeek",
  PERCENT_RANK() 
    OVER (
      PARTITION BY "Category" 
      ORDER BY "DayOfWeek")
FROM eth.recent_blocks 

-- Category, Descript, DayOfWeek, EXPR$3
-- ARSON, ARSON, Friday, 0.0 
-- ARSON, ARSON, Monday, 0.1368421052631579