Returns the row number for the current row based on the
ORDER BY clause within each partition. Rows containing identical values receive different row numbers.
ROW_NUMBER() OVER ( [PARTITION BY partition_expression] [ORDER BY order_expression]) → bigint
- 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.
SELECT "Category", "Descript", "DayOfWeek", ROW_NUMBER() OVER ( PARTITION BY "Category" ORDER BY "DayOfWeek") FROM Samples."samples.dremio.com"."SF_incidents2016.json" -- Category, Descript, DayOfWeek, EXPR$3 -- ARSON, ARSON, Friday, 1 -- ARSON, ARSON, Friday, 2
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