我正在重新映射已安装的业务，需要在SQL for Oracle 11中执行以下操作。
这是一次＆＃34;一次性活动＆＃34; （不是我的客户的可交付成果）因此我打算不使用编程语言来实现它。 我有下表。用于设置的DDL和DML如下。
subsriber_cd | prod_id | rate plan | charge_ID | QoS_1 | QoS_2 | QoS_3 | RatePerUnit |
-------------+---------+-----------+-----------+--------+--------+--------+-------------|
pete | 1 | RP1 | 100 | Credit | Analog | | 0.1 |
pete | 1 | RP1 | 100 | Credit | GSM | | 0.2 |
pete | 1 | RP1 | 100 | Credit | LTE | | 0.3 |
pete | 1 | RP1 | 100 | Debit | Analog | | 1.1 |
pete | 1 | RP1 | 100 | Debit | GSM | | 1.2 |
pete | 1 | RP1 | 100 | Debit | LTE | | 1.3 |
pete | 1 | RP1 | 101 | Credit | Analog | | 2.1 |
pete | 1 | RP1 | 101 | Credit | GSM | | 2.2 |
pete | 1 | RP1 | 101 | Credit | LTE | | 2.3 |
pete | 1 | RP1 | 101 | Debit | Analog | | 3.1 |
pete | 1 | RP1 | 101 | Debit | GSM | | 3.2 |
pete | 1 | RP1 | 101 | Debit | LTE | | 3.3 |
chris | 2 | RP2 | 100 | Credit | Analog | | 5.1 |
chris | 2 | RP2 | 100 | Credit | GSM | | 5.2 |
chris | 2 | RP2 | 100 | Credit | LTE | | 5.3 |
chris | 2 | RP2 | 100 | Debit | Analog | | 6.1 |
chris | 2 | RP2 | 100 | Debit | GSM | | 6.2 |
chris | 2 | RP2 | 100 | Debit | LTE | | 6.3 |
chris | 2 | RP2 | 101 | Credit | Analog | | 7.1 |
chris | 2 | RP2 | 101 | Credit | GSM | | 7.2 |
chris | 2 | RP2 | 101 | Credit | LTE | | 7.3 |
chris | 2 | RP2 | 101 | Debit | Analog | | 8.1 |
chris | 2 | RP2 | 101 | Debit | GSM | | 8.2 |
chris | 2 | RP2 | 101 | Debit | LTE | | 8.3 |
jack | 3 | RP3 | 100 | Credit | Analog | | 0.1 |
jack | 3 | RP3 | 100 | Credit | GSM | | 0.2 |
jack | 3 | RP3 | 100 | Credit | LTE | | 0.3 |
jack | 3 | RP3 | 100 | Debit | Analog | | 1.1 |
jack | 3 | RP3 | 100 | Debit | GSM | | 1.2 |
jack | 3 | RP3 | 100 | Debit | LTE | | 1.3 |
jack | 3 | RP3 | 101 | Credit | Analog | | 2.1 |
jack | 3 | RP3 | 101 | Credit | GSM | | 2.2 |
jack | 3 | RP3 | 101 | Credit | LTE | | 2.3 |
jack | 3 | RP3 | 101 | Debit | Analog | | 3.1 |
jack | 3 | RP3 | 101 | Debit | GSM | | 3.2 |
jack | 3 | RP3 | 101 | Debit | LTE | | 3.3 |
...
dave | 4 | RP4 | 100 | Credit | Analog | | 10.1 |
dave | 4 | RP4 | 100 | Credit | GSM | | 10.2 |
dave | 4 | RP4 | 100 | Credit | LTE | | 10.3 |
dave | 4 | RP4 | 100 | Debit | Analog | | 10.1 |
dave | 4 | RP4 | 100 | Debit | GSM | | 10.2 |
dave | 4 | RP4 | 100 | Debit | LTE | | 10.3 |
dave | 4 | RP4 | 101 | Credit | Analog | | 10.1 |
dave | 4 | RP4 | 101 | Credit | GSM | | 10.2 |
dave | 4 | RP4 | 101 | Credit | LTE | | 10.3 |
dave | 4 | RP4 | 101 | Debit | Analog | | 10.1 |
dave | 4 | RP4 | 101 | Debit | GSM | | 10.2 |
dave | 4 | RP4 | 101 | Debit | LTE | | 10.3 |
设计中存在错误，每个订户都被分配了一个独特的产品。 这导致我的系统中有数千种产品。
作为重新设计，我计划不为每个订阅者创建单独的产品，而是创建一个产品和费率计划，而是添加一个新的QoS_3，以帮助我提供不同的RatePerUnits。
由于pete和jack具有相同的RatePerUnit，我计划为它们存储相同的QoS_3。 所以我需要找到匹配RatePerUnit的记录集，以便我可以将它们合并为一个QoS_3。
在上表中，我可以合并pete＆和jack的QoS_3，因为它们对于其他字段的所有组合具有相同的RatePerUnit，从而构成了我的表。
subsriber_cd | prod_id | rate plan | charge_ID | QoS_1 | QoS_2 | QoS_3 | RatePerUnit |
-------------+---------+-----------+-----------+--------+--------+--------+-------------|
pete | 5 | RP5 | 100 | Credit | Analog | Q_1 | 0.1 |
pete | 5 | RP5 | 100 | Credit | GSM | Q_1 | 0.2 |
pete | 5 | RP5 | 100 | Credit | LTE | Q_1 | 0.3 |
pete | 5 | RP5 | 100 | Debit | Analog | Q_1 | 1.1 |
pete | 5 | RP5 | 100 | Debit | GSM | Q_1 | 1.2 |
pete | 5 | RP5 | 100 | Debit | LTE | Q_1 | 1.3 |
pete | 5 | RP5 | 101 | Credit | Analog | Q_1 | 2.1 |
pete | 5 | RP5 | 101 | Credit | GSM | Q_1 | 2.2 |
pete | 5 | RP5 | 101 | Credit | LTE | Q_1 | 2.3 |
pete | 5 | RP5 | 101 | Debit | Analog | Q_1 | 3.1 |
pete | 5 | RP5 | 101 | Debit | GSM | Q_1 | 3.2 |
pete | 5 | RP5 | 101 | Debit | LTE | Q_1 | 3.3 |
chris | 5 | RP5 | 100 | Credit | Analog | Q_2 | 5.1 |
chris | 5 | RP5 | 100 | Credit | GSM | Q_2 | 5.2 |
chris | 5 | RP5 | 100 | Credit | LTE | Q_2 | 5.3 |
chris | 5 | RP5 | 100 | Debit | Analog | Q_2 | 6.1 |
chris | 5 | RP5 | 100 | Debit | GSM | Q_2 | 6.2 |
chris | 5 | RP5 | 100 | Debit | LTE | Q_2 | 6.3 |
chris | 5 | RP5 | 101 | Credit | Analog | Q_2 | 7.1 |
chris | 5 | RP5 | 101 | Credit | GSM | Q_2 | 7.2 |
chris | 5 | RP5 | 101 | Credit | LTE | Q_2 | 7.3 |
chris | 5 | RP5 | 101 | Debit | Analog | Q_2 | 8.1 |
chris | 5 | RP5 | 101 | Debit | GSM | Q_2 | 8.2 |
chris | 5 | RP5 | 101 | Debit | LTE | Q_2 | 8.3 |
jack | 5 | RP5 | 100 | Credit | Analog | Q_1 | 0.1 |
jack | 5 | RP5 | 100 | Credit | GSM | Q_1 | 0.2 |
jack | 5 | RP5 | 100 | Credit | LTE | Q_1 | 0.3 |
jack | 5 | RP5 | 100 | Debit | Analog | Q_1 | 1.1 |
jack | 5 | RP5 | 100 | Debit | GSM | Q_1 | 1.2 |
jack | 5 | RP5 | 100 | Debit | LTE | Q_1 | 1.3 |
jack | 5 | RP5 | 101 | Credit | Analog | Q_1 | 2.1 |
jack | 5 | RP5 | 101 | Credit | GSM | Q_1 | 2.2 |
jack | 5 | RP5 | 101 | Credit | LTE | Q_1 | 2.3 |
jack | 5 | RP5 | 101 | Debit | Analog | Q_1 | 3.1 |
jack | 5 | RP5 | 101 | Debit | GSM | Q_1 | 3.2 |
jack | 5 | RP5 | 101 | Debit | LTE | Q_1 | 3.3 |
...
dave | 5 | RP5 | 100 | Credit | Analog | Q_4 | 10.1 |
dave | 5 | RP5 | 100 | Credit | GSM | Q_4 | 10.2 |
dave | 5 | RP5 | 100 | Credit | LTE | Q_4 | 10.3 |
dave | 5 | RP5 | 100 | Debit | Analog | Q_4 | 10.1 |
dave | 5 | RP5 | 100 | Debit | GSM | Q_4 | 10.2 |
dave | 5 | RP5 | 100 | Debit | LTE | Q_4 | 10.3 |
dave | 5 | RP5 | 101 | Credit | Analog | Q_4 | 10.1 |
dave | 5 | RP5 | 101 | Credit | GSM | Q_4 | 10.2 |
dave | 5 | RP5 | 101 | Credit | LTE | Q_4 | 10.3 |
dave | 5 | RP5 | 101 | Debit | Analog | Q_4 | 10.1 |
dave | 5 | RP5 | 101 | Debit | GSM | Q_4 | 10.2 |
dave | 5 | RP5 | 101 | Debit | LTE | Q_4 | 10.3 |
当用户现在不必为pete，chris，jack和dave输入12 * 4 RatePerUnit，而是输入12 * 3 RatePerUnit时，您可以看到好处。
这将对我的重新设计产生巨大影响，因为我的所有订阅者都有大约40K的记录。
DDL和DML
CREATE TABLE combination (
subsriber_cd VARCHAR2(20),
prod_id NUMBER(5),
rate_plan VARCHAR2(20),
charge_id NUMBER(5),
qos_1 VARCHAR2(20),
qos_2 VARCHAR2(20),
qos_3 VARCHAR2(20),
rateperunit NUMBER(10,2)
);
INSERT INTO combination
VALUES ('pete', 1, 'RP1', 100, 'Credit', 'Analog', '', 0.1);
INSERT INTO combination
VALUES ('pete', 1, 'RP1', 100, 'Credit', 'GSM', '', 0.2);
INSERT INTO combination
VALUES ('pete', 1, 'RP1', 100, 'Credit', 'LTE', '', 0.3);
INSERT INTO combination
VALUES ('pete', 1, 'RP1', 100, 'Debit', 'Analog', '', 1.1);
INSERT INTO combination
VALUES ('pete', 1, 'RP1', 100, 'Debit', 'GSM', '', 1.2);
INSERT INTO combination
VALUES ('pete', 1, 'RP1', 100, 'Debit', 'LTE', '', 1.3);
INSERT INTO combination
VALUES ('pete', 1, 'RP1', 101, 'Credit', 'Analog', '', 2.1);
INSERT INTO combination
VALUES ('pete', 1, 'RP1', 101, 'Credit', 'GSM', '', 2.2);
INSERT INTO combination
VALUES ('pete', 1, 'RP1', 101, 'Credit', 'LTE', '', 2.3);
INSERT INTO combination
VALUES ('pete', 1, 'RP1', 101, 'Debit', 'Analog', '', 3.1);
INSERT INTO combination
VALUES ('pete', 1, 'RP1', 101, 'Debit', 'GSM', '', 3.2);
INSERT INTO combination
VALUES ('pete', 1, 'RP1', 101, 'Debit', 'LTE', '', 3.3);
INSERT INTO combination
VALUES ('chris', 2, 'RP2', 100, 'Credit', 'Analog', '', 5.1);
INSERT INTO combination
VALUES ('chris', 2, 'RP2', 100, 'Credit', 'GSM', '', 5.2);
INSERT INTO combination
VALUES ('chris', 2, 'RP2', 100, 'Credit', 'LTE', '', 5.3);
INSERT INTO combination
VALUES ('chris', 2, 'RP2', 100, 'Debit', 'Analog', '', 6.1);
INSERT INTO combination
VALUES ('chris', 2, 'RP2', 100, 'Debit', 'GSM', '', 6.2);
INSERT INTO combination
VALUES ('chris', 2, 'RP2', 100, 'Debit', 'LTE', '', 6.3);
INSERT INTO combination
VALUES ('chris', 2, 'RP2', 101, 'Credit', 'Analog', '', 7.1);
INSERT INTO combination
VALUES ('chris', 2, 'RP2', 101, 'Credit', 'GSM', '', 7.2);
INSERT INTO combination
VALUES ('chris', 2, 'RP2', 101, 'Credit', 'LTE', '', 7.3);
INSERT INTO combination
VALUES ('chris', 2, 'RP2', 101, 'Debit', 'Analog', '', 8.1);
INSERT INTO combination
VALUES ('chris', 2, 'RP2', 101, 'Debit', 'GSM', '', 8.2);
INSERT INTO combination
VALUES ('chris', 2, 'RP2', 101, 'Debit', 'LTE', '', 8.3);
INSERT INTO combination
VALUES ('jack', 3, 'RP3', 100, 'Credit', 'Analog', '', 0.1);
INSERT INTO combination
VALUES ('jack', 3, 'RP3', 100, 'Credit', 'GSM', '', 0.2);
INSERT INTO combination
VALUES ('jack', 3, 'RP3', 100, 'Credit', 'LTE', '', 0.3);
INSERT INTO combination
VALUES ('jack', 3, 'RP3', 100, 'Debit', 'Analog', '', 1.1);
INSERT INTO combination
VALUES ('jack', 3, 'RP3', 100, 'Debit', 'GSM', '', 1.2);
INSERT INTO combination
VALUES ('jack', 3, 'RP3', 100, 'Debit', 'LTE', '', 1.3);
INSERT INTO combination
VALUES ('jack', 3, 'RP3', 101, 'Credit', 'Analog', '', 2.1);
INSERT INTO combination
VALUES ('jack', 3, 'RP3', 101, 'Credit', 'GSM', '', 2.2);
INSERT INTO combination
VALUES ('jack', 3, 'RP3', 101, 'Credit', 'LTE', '', 2.3);
INSERT INTO combination
VALUES ('jack', 3, 'RP3', 101, 'Debit', 'Analog', '', 3.1);
INSERT INTO combination
VALUES ('jack', 3, 'RP3', 101, 'Debit', 'GSM', '', 3.2);
INSERT INTO combination
VALUES ('jack', 3, 'RP3', 101, 'Debit', 'LTE', '', 3.3);
INSERT INTO combination
VALUES ('dave', 4, 'RP4', 100, 'Credit', 'Analog', '', 10.1);
INSERT INTO combination
VALUES ('dave', 4, 'RP4', 100, 'Credit', 'GSM', '', 10.2);
INSERT INTO combination
VALUES ('dave', 4, 'RP4', 100, 'Credit', 'LTE', '', 10.3);
INSERT INTO combination
VALUES ('dave', 4, 'RP4', 100, 'Debit', 'Analog', '', 10.1);
INSERT INTO combination
VALUES ('dave', 4, 'RP4', 100, 'Debit', 'GSM', '', 10.2);
INSERT INTO combination
VALUES ('dave', 4, 'RP4', 100, 'Debit', 'LTE', '', 10.3);
INSERT INTO combination
VALUES ('dave', 4, 'RP4', 101, 'Credit', 'Analog', '', 10.1);
INSERT INTO combination
VALUES ('dave', 4, 'RP4', 101, 'Credit', 'GSM', '', 10.2);
INSERT INTO combination
VALUES ('dave', 4, 'RP4', 101, 'Credit', 'LTE', '', 10.3);
INSERT INTO combination
VALUES ('dave', 4, 'RP4', 101, 'Debit', 'Analog', '', 10.1);
INSERT INTO combination
VALUES ('dave', 4, 'RP4', 101, 'Debit', 'GSM', '', 10.2);
INSERT INTO combination
答案 0 :(得分：0)
如果我理解正确，您希望根据相同的QOS_3更新rateperunit。这个合并是这样的：
merge into combination c1
using (
select row_number() over (order by rpu) rn, rpu
from (
select rateperunit rpu
from combination
group by rateperunit)
) c2
on (c1.rateperunit = c2.rpu)
when matched then update set c1.qos_3 = 'Q_'||lpad(c2.rn, 4, '0')
结果：
select * from combination order by qos_3
pete 1 RP1 100 Credit Analog Q_0001 0.1
jack 3 RP3 100 Credit Analog Q_0001 0.1
pete 1 RP1 100 Credit GSM Q_0002 0.2
jack 3 RP3 100 Credit GSM Q_0002 0.2
pete 1 RP1 100 Credit LTE Q_0003 0.3
jack 3 RP3 100 Credit LTE Q_0003 0.3
...
dave 4 RP4 101 Credit GSM Q_0026 10.2
dave 4 RP4 101 Credit LTE Q_0027 10.3
dave 4 RP4 100 Credit LTE Q_0027 10.3
dave 4 RP4 100 Debit LTE Q_0027 10.3