例如:
item1 item2 name subject
1 1 lily maths
1 2 lily english
1 3 lily chinese
2 1 lucy maths
2 2 lucy english
现有的数据位
lily maths
lily english
lily chinese
lucy maths
lucy english
------解决方案--------------------
rank()函数试试
------解决方案--------------------
- SQL code
insert into table (item1, item2, name, subject)select tt.item1 , rank() over(partition by tt.rr order by tt.tml_type_cd,tt.tml_id) as item2, tt.name , tt.subject from (select dense_rank() over(order by t.name ) as item1,t.name,t.subject from table1 t ) tt;
------解决方案--------------------