Sql 基于同一表中的列生成Oracle序列

我正在尝试使用oracle中的分析函数生成序列。但是，我的序列依赖于表PROD_INFO中的两列。列名为PROD_ID和BILLING_NO。对于同一PROD_ID，可以有多个BILLING_NO。BILLING_NO也可以有空值。我需要根据以下逻辑生成序列

对于第一组PROD_ID，BILLING_NO composition，我需要增加2000、2010、2020等序列，直到找到具有相同PROD_ID的不同BILLING_NO

如果是不同的账单号，我需要输入3000、3010、3020等序列

当产品ID更改时，我需要将该账单编号的顺序更改为2000、2010、2020等。输出显示在下表中

附言：我在上面的输出中用“NULL”描述了NULL值

我目前正在使用下面的分析函数。但是，它不会更改为3000、3010等、4000、4010等，而是重复2000、2010、2020等

SELECT   PROD_ID,
    BILLING_NO,
    2000 + ROW_NUMBER() OVER (PARTITION BY PROD_ID, BILLING_NO ORDER BY BILLING_NO) * 10 AS SEQUENCE,
    QUANTITY
FROM    PROD_INFO;

所以，你能帮我实现上述结果吗

谢谢大家!

--The query you need
SELECT PROD_ID,
  BILLING_NO,
  (DENSE_RANK() OVER (PARTITION BY prod_id ORDER BY PROD_ID, BILLING_NO) + 1) * 1000 
  + 
  ROW_NUMBER() OVER (PARTITION BY PROD_ID, BILLING_NO ORDER BY BILLING_NO) * 10 AS sequence,
  QUANTITY
FROM PROD_INFO
/

您需要使用

ANALYTIC

函数

densite\u RANK

和

ROW\u NUMBER

让我们用一个测试用例来检查这一点

SQL> WITH DATA AS(
  2  SELECT '1-7OR'  PROD_ID,   'AB1'    BILLING_NO FROM DUAL UNION ALL
  3  SELECT '1-7OR'  PROD_ID,   'AB1'        BILLING_NO FROM DUAL UNION ALL
  4  SELECT '1-7OR'  PROD_ID,   'AB1'      BILLING_NO FROM DUAL UNION ALL
  5  SELECT '1-7OR'  PROD_ID,   NULL       BILLING_NO FROM DUAL UNION ALL
  6  SELECT '1-7OR'  PROD_ID,   'AB2'       BILLING_NO FROM DUAL UNION ALL
  7  SELECT '1-7OR'  PROD_ID,   'AB2'        BILLING_NO FROM DUAL UNION ALL
  8  SELECT '1-7OR'  PROD_ID,   'AB2'         BILLING_NO FROM DUAL UNION ALL
  9  SELECT '1-7OR'  PROD_ID,   'AB2'         BILLING_NO FROM DUAL UNION ALL
 10  SELECT '1-7OR'  PROD_ID,   NULL        BILLING_NO FROM DUAL UNION ALL
 11  SELECT '1-7OR'  PROD_ID,   NULL       BILLING_NO FROM DUAL UNION ALL
 12  SELECT '1-7OR'  PROD_ID,   'AB3'         BILLING_NO FROM DUAL UNION ALL
 13  SELECT '1-7OR'  PROD_ID,   'AB3'        BILLING_NO FROM DUAL UNION ALL
 14  SELECT '1-7OR'  PROD_ID,   'AB3'         BILLING_NO FROM DUAL UNION ALL
 15  SELECT '1-9ER'  PROD_ID,   'UC1'         BILLING_NO FROM DUAL UNION ALL
 16  SELECT '1-9ER'  PROD_ID,   'UC1'        BILLING_NO FROM DUAL UNION ALL
 17  SELECT '1-9ER'  PROD_ID,   'UC1'        BILLING_NO FROM DUAL UNION ALL
 18  SELECT '1-9ER'  PROD_ID,   'UC1'        BILLING_NO FROM DUAL UNION ALL
 19  SELECT '1-9ER'  PROD_ID,   NULL       BILLING_NO FROM DUAL UNION ALL
 20  SELECT '1-9ER'  PROD_ID,   'UC2'      BILLING_NO FROM DUAL UNION ALL
 21  SELECT '1-9ER'  PROD_ID,   'UC2'      BILLING_NO FROM DUAL UNION ALL
 22  SELECT '1-9ER'  PROD_ID,   'UC2'        BILLING_NO FROM DUAL UNION ALL
 23  SELECT '1-9ER'  PROD_ID,   'UC2'         BILLING_NO FROM DUAL
 24  )
 25  --The query you need
 26  SELECT PROD_ID,
 27    BILLING_NO,
 28    (DENSE_RANK() OVER (PARTITION BY prod_id ORDER BY PROD_ID, BILLING_NO) + 1) * 1000
 29    +
 30    ROW_NUMBER() OVER (PARTITION BY PROD_ID, BILLING_NO ORDER BY BILLING_NO) * 10 AS sequence
 31  FROM data
 32  /

PROD_ BIL             SEQUENCE
----- --- --------------------
1-7OR AB1                 2010
1-7OR AB1                 2020
1-7OR AB1                 2030
1-7OR AB2                 3010
1-7OR AB2                 3020
1-7OR AB2                 3030
1-7OR AB2                 3040
1-7OR AB3                 4010
1-7OR AB3                 4020
1-7OR AB3                 4030
1-7OR                     5010
1-7OR                     5020
1-7OR                     5030
1-9ER UC1                 2010
1-9ER UC1                 2020
1-9ER UC1                 2030
1-9ER UC1                 2040
1-9ER UC2                 3010
1-9ER UC2                 3020
1-9ER UC2                 3030
1-9ER UC2                 3040
1-9ER                     4010

22 rows selected.

SQL>

---

注意窗口功能将所有空值保持在一起。

问得好。您需要使用

analytic

函数

densite\u rank

和

row\u number

。检查我的答案。太棒了，谢谢！我只是稍微调整了一下你的答案，从2000年开始。选择产品标识，账单号，（密集等级（）覆盖（按产品标识按订单划分，账单号）+1）*1000+（行号（）覆盖（按产品标识划分，按账单号划分）*10）-10作为序列，数量来自产品信息；啊，是的，我没有意识到我的解决方案的顺序是从

2010

开始，而不是从

2000

开始。感谢您的反馈：-）

SQL> WITH DATA AS(
  2  SELECT '1-7OR'  PROD_ID,   'AB1'    BILLING_NO FROM DUAL UNION ALL
  3  SELECT '1-7OR'  PROD_ID,   'AB1'        BILLING_NO FROM DUAL UNION ALL
  4  SELECT '1-7OR'  PROD_ID,   'AB1'      BILLING_NO FROM DUAL UNION ALL
  5  SELECT '1-7OR'  PROD_ID,   NULL       BILLING_NO FROM DUAL UNION ALL
  6  SELECT '1-7OR'  PROD_ID,   'AB2'       BILLING_NO FROM DUAL UNION ALL
  7  SELECT '1-7OR'  PROD_ID,   'AB2'        BILLING_NO FROM DUAL UNION ALL
  8  SELECT '1-7OR'  PROD_ID,   'AB2'         BILLING_NO FROM DUAL UNION ALL
  9  SELECT '1-7OR'  PROD_ID,   'AB2'         BILLING_NO FROM DUAL UNION ALL
 10  SELECT '1-7OR'  PROD_ID,   NULL        BILLING_NO FROM DUAL UNION ALL
 11  SELECT '1-7OR'  PROD_ID,   NULL       BILLING_NO FROM DUAL UNION ALL
 12  SELECT '1-7OR'  PROD_ID,   'AB3'         BILLING_NO FROM DUAL UNION ALL
 13  SELECT '1-7OR'  PROD_ID,   'AB3'        BILLING_NO FROM DUAL UNION ALL
 14  SELECT '1-7OR'  PROD_ID,   'AB3'         BILLING_NO FROM DUAL UNION ALL
 15  SELECT '1-9ER'  PROD_ID,   'UC1'         BILLING_NO FROM DUAL UNION ALL
 16  SELECT '1-9ER'  PROD_ID,   'UC1'        BILLING_NO FROM DUAL UNION ALL
 17  SELECT '1-9ER'  PROD_ID,   'UC1'        BILLING_NO FROM DUAL UNION ALL
 18  SELECT '1-9ER'  PROD_ID,   'UC1'        BILLING_NO FROM DUAL UNION ALL
 19  SELECT '1-9ER'  PROD_ID,   NULL       BILLING_NO FROM DUAL UNION ALL
 20  SELECT '1-9ER'  PROD_ID,   'UC2'      BILLING_NO FROM DUAL UNION ALL
 21  SELECT '1-9ER'  PROD_ID,   'UC2'      BILLING_NO FROM DUAL UNION ALL
 22  SELECT '1-9ER'  PROD_ID,   'UC2'        BILLING_NO FROM DUAL UNION ALL
 23  SELECT '1-9ER'  PROD_ID,   'UC2'         BILLING_NO FROM DUAL
 24  )
 25  --The query you need
 26  SELECT PROD_ID,
 27    BILLING_NO,
 28    (DENSE_RANK() OVER (PARTITION BY prod_id ORDER BY PROD_ID, BILLING_NO) + 1) * 1000
 29    +
 30    ROW_NUMBER() OVER (PARTITION BY PROD_ID, BILLING_NO ORDER BY BILLING_NO) * 10 AS sequence
 31  FROM data
 32  /

PROD_ BIL             SEQUENCE
----- --- --------------------
1-7OR AB1                 2010
1-7OR AB1                 2020
1-7OR AB1                 2030
1-7OR AB2                 3010
1-7OR AB2                 3020
1-7OR AB2                 3030
1-7OR AB2                 3040
1-7OR AB3                 4010
1-7OR AB3                 4020
1-7OR AB3                 4030
1-7OR                     5010
1-7OR                     5020
1-7OR                     5030
1-9ER UC1                 2010
1-9ER UC1                 2020
1-9ER UC1                 2030
1-9ER UC1                 2040
1-9ER UC2                 3010
1-9ER UC2                 3020
1-9ER UC2                 3030
1-9ER UC2                 3040
1-9ER                     4010

22 rows selected.

SQL>