分析函数 row_number() over(partition by a order by b) order_id dense_rank() over(partition by a order by b) order_id rank() over()(partition by a order by b) order_id row_number dense_rank rank 2001 1 1 1 2002 2 2 2 2002 3 2 2 2003 4 3 4
分析函数
row_number() over(partition by a order by b) order_id
dense_rank() over(partition by a order by b) order_id
rank() over()(partition by a order by b) order_id
row_number dense_rank rank
2001 1 1 1
2002 2 2 2
2002 3 2 2
2003 4 3 4
