How to count row's in hive?

Question

this is my table:

ID/Number/Date
1/111/2021-01-01
2/111/2021-01-02
6/333/2921-01-01

I need a table which count the rows based on Number order by Date asc. This should be my final table:

ID/Number/Date/Row_No_Count
1/111/2021-01-01/1
2/111/2021-01-02/2
6/333/2921-01-01/1

How to achieve this with hive? Is their any function?

Answer 1

Row Number is a Function IN SQL Server for this type of Work. You can solve Your Problem on based on below Query .

Query : Select *,row_number () Over (partition by Number order by Number) 'Row_Number_Count' From t ; Output :

 id          Number      Date       Row_Number_Count
----------- ----------- ---------- --------------------
1           111         2021-01-01    1
2           111         2021-01-02    2
6           333         2921-01-01    1

(3 rows affected)