如何在oracle中添加小计和合计

Question

我想在Oracle中将合计和小计添加到结果中

SELECT b.org_id  "Org ID", a.org_nm  "Org Name", b.trans_cd  "Transaction", TO_CHAR(b.creat_ts,'mm/dd/yyyy') "Date", b.trans_am "Amount"
FROM adrs a, advrg_fee b 
WHERE  a.org_id = b.org_id AND to_char(b.creat_ts,'yyyy') = 2019 AND to_char(b.creat_ts,'mm') = 04;

结果如下所示

Org ID  Org Name  Transaction    Date        Amount

  11       AA        T1         2018-4-11     100
  11       AA        T1         2018-5-11     200
  22       BB        T2         2017-9-7      200
  22       BB        T4         2018-9-11     100

现在我想将小计和总计添加到结果中。

Org ID  Org Name  Transaction    Date        Amount

  11       AA        T1         2018-4-11     100
  11       AA        T1         2018-5-11     200
  AA_subtotal                                 300
  22       BB        T2         2017-9-7      200
  22       BB        T4         2018-9-11     100
  BB_subtotal                                 300
  Total                                       600

我该怎么做呢？我尝试了像rollup这样的函数，但不确定如何使用它。对如何修改查询有什么建议吗？谢谢!

Answer 1

您可以使用GROUPING SETS

SELECT af.org_id as "Org ID", a.org_nm as "Org Name",
       af.trans_cd as "Transaction",
       TO_CHAR(af.creat_ts, 'mm/dd/yyyy') as "Date",
       SUM(af.trans_am) as "Amount"
FROM adrs a JOIN
     advrg_fee af
     ON  a.org_id = af.org_id 
WHERE af.creat_ts >= DATE '2019-04-01' AND af.creat_ts < DATE '2019-05-01'
GROUP BY GROUPING SETS ( (af.org_id, a.org_nm, af.trans_cd, TO_CHAR(af.creat_ts, 'mm/dd/yyyy') ), (a.org_nm), () );

注意我对查询所做的更改：

• 它使用正确、显式的标准 JOIN语法。使用
• 日期比较，而不是调用函数。这既更清晰，又使optimizer.
• The表别名更容易理解，因此查询更容易理解。