记录
type billno fee
A 1 50
A 2 100
A 3 150
A 4 200
A 8 50
A 9 100
A 12 50
S 1 50
S 3 50
S 4 100
要求按照TYPE,并且billno是连续的分组sum(fee)得到的记录是
type start end sumfee
A 1 4 500
A 8 9 150
A 12 12 50
S 1 1 50
S 3 4 150
create table t (type varchar2(1),billno number,fee number);
insert into t values('A',1 ,50 );
insert into t values('A',2 ,100);
insert into t values('A',3 ,150);
insert into t values('A',4 ,200);
insert into t values('A',8 ,50 );
insert into t values('A',9 ,100);
insert into t values('A',12, 50);
insert into t values('S',1 ,50 );
insert into t values('S',3 ,50 );
insert into t values('S',4 ,100);
commit;
select type,min(billno) min_no,max(billno) max_no,sum(fee)
from (select type,billno,billno - row_number() over(order by type,billno) num,fee from t)
group by type,num;
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