Want Row Number on Group of column in MY SQL?

Question

I have one table in MYSQL It has data like

Id Name 
1  test
1  test
1  test123
2  test222
3  test333

I want the data like

Id Name     RowN         


        

Answer 1

Oracle and MSSQL would support

SELECT Id, Name, row_number() OVER(partition by Id, Name order by Id) AS RowNum FROM table

(answer doesn't help the OP who is on MySQL, but added for completeness)