Question

我有一张如下表格，我需要得到詹姆斯和琼斯以及整体总数的小计。

有些人可以通过仅使用plsql

帮助我找到答案

order no | name | amount

order 1  | james | 400

order 2  | jones | 6000

order 3  | james | 100

O / P

order 1 | james | 400

order 3 | james | 6000

total   | null  | 6400

order 2 | jones | 100

overall  | null | 6500

Answer 1

您可以使用rollup：

select 
  case grouping(order_no)+ grouping(name) 
    when 2 then 'overall'
    when 1 then 'total'
    else order_no
  end as order_no, 
  name,
  sum(amount) as amount
from t
group by rollup(name, order_no)

产地：

order 1     james   400
order 3     james   100
total       james   500
order 2     jones   6000
total       jones   6000
overall             6500

请注意，我保留了名称的总数，以便能够确定哪个用户的总数。

Demo

Answer 2

这有点傻，我完全同意Gurv的观点，但这里是使用plsql并借用GURV解决方案的解决方案。

create table mytable (
order_no varchar(30),
name varchar2(30),
amount number

)


Insert into MYTABLE (ORDER_NO,NAME,AMOUNT) values ('1','james',4000);
Insert into MYTABLE (ORDER_NO,NAME,AMOUNT) values ('2','jones',6000);
Insert into MYTABLE (ORDER_NO,NAME,AMOUNT) values ('3','james',6000);



DECLARE

CURSOR totalByPerson IS
select 
  case grouping(order_no)+ grouping(name) 
    when 2 then 'overall'
    when 1 then 'total'
    else order_no
  end as order_no, 
  name,
  sum(amount) as amount
from mytable
group by rollup(name, order_no);

BEGIN

FOR person_rec in totalByPerson
LOOP
DBMS_OUTPUT.PUT_LINE(person_rec.order_no || '-'|| person_rec.name||' - '|| person_rec.amount );

END LOOP;

END;

使用plsql进行子总体实现

2 个答案:

Demo