SQL ：将数字重新设置为 100
SQL : Rebase number to 100
我有以下查询：
WITH CTE
AS (
SELECT CASE
WHEN shareClassdata.valueDate IS NULL
THEN NULL
ELSE performanceData.valueDate
END AS valueDate
,CASE
WHEN shareClassdata.benchmarkTypeName IS NULL
THEN NULL
ELSE performanceData.benchmarkTypeName
END AS benchmarkTypeName
,CASE
WHEN shareClassdata.NAVLocal IS NULL
THEN NULL
ELSE performanceData.NAVLocal
END AS NAVLocal
FROM getPerformances(2, 12045, 0, 308, 31) AS performanceData
LEFT JOIN (
SELECT *
FROM getPerformances(2, 12045, 0, 308, 31)
) shareClassdata ON shareClassdata.shareClassGroupId = performanceData.shareClassGroupId
AND shareClassdata.currencyId = performanceData.currencyId
AND shareClassdata.financialStructureGroupId = performanceData.financialStructureGroupId
AND shareClassdata.valueDate = performanceData.valueDate
AND shareClassdata.benchmarkTypeName = 'Fund'
WHERE performanceData.shareClassGroupId = 22050
AND performanceData.valueDate <= '2017-06-30 00:00:00.000'
AND (
isnull(performanceData.valueDate, '') <> ''
AND (
performanceData.benchmarkTypeName = 'Benchmark'
OR performanceData.benchmarkTypeName = 'Fund'
)
)
)
SELECT valueDate
,benchmarkTypeName
,NAVLocal
FROM CTE AS a
WHERE valueDate IS NOT NULL
AND benchmarkTypeName IS NOT NULL
ORDER BY benchmarkTypeName ASC
,valueDate ASC
给出以下结果：
+------------+-------------------+---------------+
| valueDate | benchmarkTypeName | NAVLocal |
| 2016-11-30 | Benchmark | 3005.96900000 |
| 2016-12-01 | Benchmark | 2994.49800000 |
| 2016-12-02 | Benchmark | 2981.91900000 |
| 2016-12-05 | Benchmark | 2981.43800000 |
| 2016-12-07 | Benchmark | 3020.05600000 |
| 2016-12-09 | Benchmark | 3110.80600000 |
| 2016-12-12 | Benchmark | 3086.44800000 |
| 2016-12-13 | Benchmark | 3097.51400000 |
| 2016-12-14 | Benchmark | 3069.05100000 |
| 2016-12-15 | Benchmark | 3151.47600000 |
| 2016-12-16 | Benchmark | 3147.68300000 |
| 2016-12-19 | Benchmark | 3145.64400000 |
| 2016-12-20 | Benchmark | 3175.35200000 |
| 2016-12-21 | Benchmark | 3150.92500000 |
| 2016-12-22 | Benchmark | 3138.26200000 |
| 2016-12-23 | Benchmark | 3140.90700000 |
| 2016-12-28 | Benchmark | 3142.34100000 |
| 2016-12-29 | Benchmark | 3112.91600000 |
| 2016-12-30 | Benchmark | 3081.54600000 |
| 2017-01-03 | Benchmark | 3156.68300000 |
| 2017-01-04 | Benchmark | 3147.51700000 |
| 2017-01-05 | Benchmark | 3108.02700000 |
| 2017-01-09 | Benchmark | 3121.82400000 |
| 2017-01-10 | Benchmark | 3111.07500000 |
| 2017-01-11 | Benchmark | 3156.88600000 |
| 2017-01-12 | Benchmark | 3095.46800000 |
| 2017-01-13 | Benchmark | 3109.50500000 |
| 2017-01-16 | Benchmark | 3109.50500000 |
| 2017-01-17 | Benchmark | 3080.41900000 |
| 2017-01-18 | Benchmark | 3086.20700000 |
| 2017-01-19 | Benchmark | 3098.86800000 |
| 2017-01-20 | Benchmark | 3089.86100000 |
| 2017-01-23 | Benchmark | 3062.10800000 |
| 2017-01-24 | Benchmark | 3079.78000000 |
| 2017-01-25 | Benchmark | 3108.25500000 |
| 2017-01-26 | Benchmark | 3127.41500000 |
| 2017-01-27 | Benchmark | 3114.02100000 |
| 2017-01-30 | Benchmark | 3099.60200000 |
| 2017-01-31 | Benchmark | 3063.61700000 |
| 2016-11-30 | Fund | 280.77300000 |
| 2016-12-01 | Fund | 279.07500000 |
| 2016-12-02 | Fund | 278.43100000 |
| 2016-12-05 | Fund | 279.70400000 |
| 2016-12-07 | Fund | 284.04200000 |
| 2016-12-09 | Fund | 290.47600000 |
| 2016-12-12 | Fund | 289.81900000 |
| 2016-12-13 | Fund | 292.15500000 |
| 2016-12-14 | Fund | 290.95000000 |
| 2016-12-15 | Fund | 291.62200000 |
| 2016-12-16 | Fund | 292.25700000 |
| 2016-12-19 | Fund | 293.07300000 |
| 2016-12-20 | Fund | 294.23700000 |
| 2016-12-21 | Fund | 293.81300000 |
| 2016-12-22 | Fund | 292.81400000 |
| 2016-12-23 | Fund | 293.08400000 |
| 2016-12-28 | Fund | 294.89500000 |
| 2016-12-29 | Fund | 294.22000000 |
| 2016-12-30 | Fund | 295.24100000 |
| 2017-01-03 | Fund | 296.37400000 |
| 2017-01-04 | Fund | 294.59900000 |
| 2017-01-05 | Fund | 295.30700000 |
| 2017-01-09 | Fund | 294.18400000 |
| 2017-01-10 | Fund | 294.42100000 |
| 2017-01-11 | Fund | 294.96700000 |
| 2017-01-12 | Fund | 293.68800000 |
| 2017-01-13 | Fund | 295.94300000 |
| 2017-01-16 | Fund | 294.73900000 |
| 2017-01-17 | Fund | 294.24300000 |
| 2017-01-18 | Fund | 295.48600000 |
| 2017-01-19 | Fund | 294.83300000 |
| 2017-01-20 | Fund | 294.29800000 |
| 2017-01-23 | Fund | 293.80800000 |
| 2017-01-24 | Fund | 294.64100000 |
| 2017-01-25 | Fund | 296.76600000 |
| 2017-01-26 | Fund | 297.37800000 |
| 2017-01-27 | Fund | 297.26900000 |
| 2017-01-30 | Fund | 294.67800000 |
| 2017-01-31 | Fund | 292.99700000 |
+------------+-------------------+---------------+
我需要将第三列变基为 100，所以我编写了以下完美运行的代码：
WITH CTE
AS (
SELECT CASE
WHEN shareClassdata.valueDate IS NULL
THEN NULL
ELSE performanceData.valueDate
END AS valueDate
,CASE
WHEN shareClassdata.benchmarkTypeName IS NULL
THEN NULL
ELSE performanceData.benchmarkTypeName
END AS benchmarkTypeName
,CASE
WHEN shareClassdata.NAVLocal IS NULL
THEN NULL
ELSE performanceData.NAVLocal
END AS NAVLocal
FROM getPerformances(2, 12045, 0, 308, 31) AS performanceData
LEFT JOIN (
SELECT *
FROM getPerformances(2, 12045, 0, 308, 31)
) shareClassdata ON shareClassdata.shareClassGroupId = performanceData.shareClassGroupId
AND shareClassdata.currencyId = performanceData.currencyId
AND shareClassdata.financialStructureGroupId = performanceData.financialStructureGroupId
AND shareClassdata.valueDate = performanceData.valueDate
AND shareClassdata.benchmarkTypeName = 'Fund'
WHERE performanceData.shareClassGroupId = 22050
AND performanceData.valueDate <= '2017-06-30 00:00:00.000'
AND (
isnull(performanceData.valueDate, '') <> ''
AND (
performanceData.benchmarkTypeName = 'Benchmark'
OR performanceData.benchmarkTypeName = 'Fund'
)
)
)
SELECT valueDate
,benchmarkTypeName
,(
sum(a.NAVLocal) / (
SELECT TOP 1 b.NAVLocal
FROM CTE AS b
WHERE b.NAVLocal != 0
AND a.benchmarkTypeName = b.benchmarkTypeName
ORDER BY b.valueDate ASC
)
) * 100 AS NAVLocal
FROM CTE AS a
WHERE valueDate IS NOT NULL
AND benchmarkTypeName IS NOT NULL
GROUP BY valueDate
,benchmarkTypeName
ORDER BY benchmarkTypeName ASC
,valueDate ASC
它给出了以下结果（注意：NAVLocal 列只是为了向您显示旧值与以前的值）：
+------------+-------------------+----------+------------------+
| valueDate | benchmarkTypeName | NAVLocal | NAVLocal rebased |
| 2016-11-30 | Benchmark | 3005.969 | 100 |
| 2016-12-01 | Benchmark | 2994.498 | 99.6183 |
| 2016-12-02 | Benchmark | 2981.919 | 99.1999 |
| 2016-12-05 | Benchmark | 2981.438 | 99.1839 |
| 2016-12-07 | Benchmark | 3020.056 | 100.4686 |
| 2016-12-09 | Benchmark | 3110.806 | 103.4876 |
| 2016-12-12 | Benchmark | 3086.448 | 102.6773 |
| 2016-12-13 | Benchmark | 3097.514 | 103.0454 |
| 2016-12-14 | Benchmark | 3069.051 | 102.0985 |
| 2016-12-15 | Benchmark | 3151.476 | 104.8406 |
| 2016-12-16 | Benchmark | 3147.683 | 104.7144 |
| 2016-12-19 | Benchmark | 3145.644 | 104.6465 |
| 2016-12-20 | Benchmark | 3175.352 | 105.6348 |
| 2016-12-21 | Benchmark | 3150.925 | 104.8222 |
| 2016-12-22 | Benchmark | 3138.262 | 104.401 |
| 2016-12-23 | Benchmark | 3140.907 | 104.489 |
| 2016-12-28 | Benchmark | 3142.341 | 104.5367 |
| 2016-12-29 | Benchmark | 3112.916 | 103.5578 |
| 2016-12-30 | Benchmark | 3081.546 | 102.5142 |
| 2017-01-03 | Benchmark | 3156.683 | 105.0138 |
| 2017-01-04 | Benchmark | 3147.517 | 104.7088 |
| 2017-01-05 | Benchmark | 3108.027 | 103.3951 |
| 2017-01-09 | Benchmark | 3121.824 | 103.8541 |
| 2017-01-10 | Benchmark | 3111.075 | 103.4965 |
| 2017-01-11 | Benchmark | 3156.886 | 105.0205 |
| 2017-01-12 | Benchmark | 3095.468 | 102.9773 |
| 2017-01-13 | Benchmark | 3109.505 | 103.4443 |
| 2017-01-16 | Benchmark | 3109.505 | 103.4443 |
| 2017-01-17 | Benchmark | 3080.419 | 102.4767 |
| 2017-01-18 | Benchmark | 3086.207 | 102.6692 |
| 2017-01-19 | Benchmark | 3098.868 | 103.0904 |
| 2017-01-20 | Benchmark | 3089.861 | 102.7908 |
| 2017-01-23 | Benchmark | 3062.108 | 101.8675 |
| 2017-01-24 | Benchmark | 3079.78 | 102.4554 |
| 2017-01-25 | Benchmark | 3108.255 | 103.4027 |
| 2017-01-26 | Benchmark | 3127.415 | 104.0401 |
| 2017-01-27 | Benchmark | 3114.021 | 103.5945 |
| 2017-01-30 | Benchmark | 3099.602 | 103.1149 |
| 2017-01-31 | Benchmark | 3063.617 | 101.9177 |
| 2016-11-30 | Fund | 280.773 | 100 |
| 2016-12-01 | Fund | 279.075 | 99.3952 |
| 2016-12-02 | Fund | 278.431 | 99.1658 |
| 2016-12-05 | Fund | 279.704 | 99.6192 |
| 2016-12-07 | Fund | 284.042 | 101.1642 |
| 2016-12-09 | Fund | 290.476 | 103.4558 |
| 2016-12-12 | Fund | 289.819 | 103.2218 |
| 2016-12-13 | Fund | 292.155 | 104.0538 |
| 2016-12-14 | Fund | 290.95 | 103.6246 |
| 2016-12-15 | Fund | 291.622 | 103.8639 |
| 2016-12-16 | Fund | 292.257 | 104.0901 |
| 2016-12-19 | Fund | 293.073 | 104.3807 |
| 2016-12-20 | Fund | 294.237 | 104.7953 |
| 2016-12-21 | Fund | 293.813 | 104.6443 |
| 2016-12-22 | Fund | 292.814 | 104.2885 |
| 2016-12-23 | Fund | 293.084 | 104.3846 |
| 2016-12-28 | Fund | 294.895 | 105.0296 |
| 2016-12-29 | Fund | 294.22 | 104.7892 |
| 2016-12-30 | Fund | 295.241 | 105.1529 |
| 2017-01-03 | Fund | 296.374 | 105.5564 |
| 2017-01-04 | Fund | 294.599 | 104.9242 |
| 2017-01-05 | Fund | 295.307 | 105.1764 |
| 2017-01-09 | Fund | 294.184 | 104.7764 |
| 2017-01-10 | Fund | 294.421 | 104.8608 |
| 2017-01-11 | Fund | 294.967 | 105.0553 |
| 2017-01-12 | Fund | 293.688 | 104.5998 |
| 2017-01-13 | Fund | 295.943 | 105.4029 |
| 2017-01-16 | Fund | 294.739 | 104.9741 |
| 2017-01-17 | Fund | 294.243 | 104.7974 |
| 2017-01-18 | Fund | 295.486 | 105.2401 |
| 2017-01-19 | Fund | 294.833 | 105.0076 |
| 2017-01-20 | Fund | 294.298 | 104.817 |
| 2017-01-23 | Fund | 293.808 | 104.6425 |
| 2017-01-24 | Fund | 294.641 | 104.9392 |
| 2017-01-25 | Fund | 296.766 | 105.696 |
| 2017-01-26 | Fund | 297.378 | 105.914 |
| 2017-01-27 | Fund | 297.269 | 105.8752 |
| 2017-01-30 | Fund | 294.678 | 104.9523 |
| 2017-01-31 | Fund | 292.997 | 104.3536 |
+------------+-------------------+----------+------------------+
但是，查询在大型数据集上 运行 非常非常非常慢。有没有更好的方法来执行此计算？
关于变基数字的提醒：
对于每个系列的基准，结果按值 date.The 升序排序，最重要的值是每个系列中最旧的记录。该系列的每个 NAV 值除以最旧的 NAV，乘以 100
您可以使用公式访问此电子表格
https://docs.google.com/spreadsheets/d/1esChCFPTLa9df3xWuLmT5-JONsS8j8vTZpAjsx7fb9M/edit?usp=sharing
谢谢
Window 函数可能有助于提高性能，我从第一个输出开始，但您应该了解如何使用 window 函数
实现它
USE
tempdb
GO
DROP TABLE IF EXISTS Rebase;
CREATE TABLE Rebase(
valueDate DATE NOT NULL
,benchmarkTypeName VARCHAR(9) NOT NULL
,NAVLocal NUMERIC(8,3) NOT NULL
);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-11-30','Benchmark',3005.969);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-01','Benchmark',2994.498);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-02','Benchmark',2981.919);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-05','Benchmark',2981.438);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-07','Benchmark',3020.056);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-09','Benchmark',3110.806);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-12','Benchmark',3086.448);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-13','Benchmark',3097.514);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-14','Benchmark',3069.051);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-15','Benchmark',3151.476);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-16','Benchmark',3147.683);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-19','Benchmark',3145.644);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-20','Benchmark',3175.352);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-21','Benchmark',3150.925);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-22','Benchmark',3138.262);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-23','Benchmark',3140.907);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-28','Benchmark',3142.341);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-29','Benchmark',3112.916);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-30','Benchmark',3081.546);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-03','Benchmark',3156.683);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-04','Benchmark',3147.517);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-05','Benchmark',3108.027);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-09','Benchmark',3121.824);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-10','Benchmark',3111.075);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-11','Benchmark',3156.886);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-12','Benchmark',3095.468);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-13','Benchmark',3109.505);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-16','Benchmark',3109.505);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-17','Benchmark',3080.419);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-18','Benchmark',3086.207);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-19','Benchmark',3098.868);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-20','Benchmark',3089.861);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-23','Benchmark',3062.108);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-24','Benchmark',3079.78);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-25','Benchmark',3108.255);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-26','Benchmark',3127.415);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-27','Benchmark',3114.021);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-30','Benchmark',3099.602);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-31','Benchmark',3063.617);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-11-30','Fund',280.773);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-01','Fund',279.075);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-02','Fund',278.431);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-05','Fund',279.704);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-07','Fund',284.042);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-09','Fund',290.476);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-12','Fund',289.819);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-13','Fund',292.155);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-14','Fund',290.95);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-15','Fund',291.622);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-16','Fund',292.257);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-19','Fund',293.073);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-20','Fund',294.237);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-21','Fund',293.813);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-22','Fund',292.814);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-23','Fund',293.084);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-28','Fund',294.895);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-29','Fund',294.22);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-30','Fund',295.241);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-03','Fund',296.374);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-04','Fund',294.599);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-05','Fund',295.307);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-09','Fund',294.184);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-10','Fund',294.421);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-11','Fund',294.967);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-12','Fund',293.688);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-13','Fund',295.943);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-16','Fund',294.739);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-17','Fund',294.243);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-18','Fund',295.486);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-19','Fund',294.833);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-20','Fund',294.298);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-23','Fund',293.808);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-24','Fund',294.641);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-25','Fund',296.766);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-26','Fund',297.378);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-27','Fund',297.269);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-30','Fund',294.678);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-31','Fund',292.997);
SELECT
valueDate
, benchmarkTypeName
, NAVLocal
, FIRST_VALUE(NAVLocal) OVER(PARTITION BY benchmarkTypeName ORDER BY valueDate) AS Oldest
, (NAVLOCAL / FIRST_VALUE(NAVLocal) OVER(PARTITION BY benchmarkTypeName ORDER BY valueDate)) * 100 aS RebaseValue
FROM
Rebase
我有以下查询：
WITH CTE
AS (
SELECT CASE
WHEN shareClassdata.valueDate IS NULL
THEN NULL
ELSE performanceData.valueDate
END AS valueDate
,CASE
WHEN shareClassdata.benchmarkTypeName IS NULL
THEN NULL
ELSE performanceData.benchmarkTypeName
END AS benchmarkTypeName
,CASE
WHEN shareClassdata.NAVLocal IS NULL
THEN NULL
ELSE performanceData.NAVLocal
END AS NAVLocal
FROM getPerformances(2, 12045, 0, 308, 31) AS performanceData
LEFT JOIN (
SELECT *
FROM getPerformances(2, 12045, 0, 308, 31)
) shareClassdata ON shareClassdata.shareClassGroupId = performanceData.shareClassGroupId
AND shareClassdata.currencyId = performanceData.currencyId
AND shareClassdata.financialStructureGroupId = performanceData.financialStructureGroupId
AND shareClassdata.valueDate = performanceData.valueDate
AND shareClassdata.benchmarkTypeName = 'Fund'
WHERE performanceData.shareClassGroupId = 22050
AND performanceData.valueDate <= '2017-06-30 00:00:00.000'
AND (
isnull(performanceData.valueDate, '') <> ''
AND (
performanceData.benchmarkTypeName = 'Benchmark'
OR performanceData.benchmarkTypeName = 'Fund'
)
)
)
SELECT valueDate
,benchmarkTypeName
,NAVLocal
FROM CTE AS a
WHERE valueDate IS NOT NULL
AND benchmarkTypeName IS NOT NULL
ORDER BY benchmarkTypeName ASC
,valueDate ASC
给出以下结果：
+------------+-------------------+---------------+
| valueDate | benchmarkTypeName | NAVLocal |
| 2016-11-30 | Benchmark | 3005.96900000 |
| 2016-12-01 | Benchmark | 2994.49800000 |
| 2016-12-02 | Benchmark | 2981.91900000 |
| 2016-12-05 | Benchmark | 2981.43800000 |
| 2016-12-07 | Benchmark | 3020.05600000 |
| 2016-12-09 | Benchmark | 3110.80600000 |
| 2016-12-12 | Benchmark | 3086.44800000 |
| 2016-12-13 | Benchmark | 3097.51400000 |
| 2016-12-14 | Benchmark | 3069.05100000 |
| 2016-12-15 | Benchmark | 3151.47600000 |
| 2016-12-16 | Benchmark | 3147.68300000 |
| 2016-12-19 | Benchmark | 3145.64400000 |
| 2016-12-20 | Benchmark | 3175.35200000 |
| 2016-12-21 | Benchmark | 3150.92500000 |
| 2016-12-22 | Benchmark | 3138.26200000 |
| 2016-12-23 | Benchmark | 3140.90700000 |
| 2016-12-28 | Benchmark | 3142.34100000 |
| 2016-12-29 | Benchmark | 3112.91600000 |
| 2016-12-30 | Benchmark | 3081.54600000 |
| 2017-01-03 | Benchmark | 3156.68300000 |
| 2017-01-04 | Benchmark | 3147.51700000 |
| 2017-01-05 | Benchmark | 3108.02700000 |
| 2017-01-09 | Benchmark | 3121.82400000 |
| 2017-01-10 | Benchmark | 3111.07500000 |
| 2017-01-11 | Benchmark | 3156.88600000 |
| 2017-01-12 | Benchmark | 3095.46800000 |
| 2017-01-13 | Benchmark | 3109.50500000 |
| 2017-01-16 | Benchmark | 3109.50500000 |
| 2017-01-17 | Benchmark | 3080.41900000 |
| 2017-01-18 | Benchmark | 3086.20700000 |
| 2017-01-19 | Benchmark | 3098.86800000 |
| 2017-01-20 | Benchmark | 3089.86100000 |
| 2017-01-23 | Benchmark | 3062.10800000 |
| 2017-01-24 | Benchmark | 3079.78000000 |
| 2017-01-25 | Benchmark | 3108.25500000 |
| 2017-01-26 | Benchmark | 3127.41500000 |
| 2017-01-27 | Benchmark | 3114.02100000 |
| 2017-01-30 | Benchmark | 3099.60200000 |
| 2017-01-31 | Benchmark | 3063.61700000 |
| 2016-11-30 | Fund | 280.77300000 |
| 2016-12-01 | Fund | 279.07500000 |
| 2016-12-02 | Fund | 278.43100000 |
| 2016-12-05 | Fund | 279.70400000 |
| 2016-12-07 | Fund | 284.04200000 |
| 2016-12-09 | Fund | 290.47600000 |
| 2016-12-12 | Fund | 289.81900000 |
| 2016-12-13 | Fund | 292.15500000 |
| 2016-12-14 | Fund | 290.95000000 |
| 2016-12-15 | Fund | 291.62200000 |
| 2016-12-16 | Fund | 292.25700000 |
| 2016-12-19 | Fund | 293.07300000 |
| 2016-12-20 | Fund | 294.23700000 |
| 2016-12-21 | Fund | 293.81300000 |
| 2016-12-22 | Fund | 292.81400000 |
| 2016-12-23 | Fund | 293.08400000 |
| 2016-12-28 | Fund | 294.89500000 |
| 2016-12-29 | Fund | 294.22000000 |
| 2016-12-30 | Fund | 295.24100000 |
| 2017-01-03 | Fund | 296.37400000 |
| 2017-01-04 | Fund | 294.59900000 |
| 2017-01-05 | Fund | 295.30700000 |
| 2017-01-09 | Fund | 294.18400000 |
| 2017-01-10 | Fund | 294.42100000 |
| 2017-01-11 | Fund | 294.96700000 |
| 2017-01-12 | Fund | 293.68800000 |
| 2017-01-13 | Fund | 295.94300000 |
| 2017-01-16 | Fund | 294.73900000 |
| 2017-01-17 | Fund | 294.24300000 |
| 2017-01-18 | Fund | 295.48600000 |
| 2017-01-19 | Fund | 294.83300000 |
| 2017-01-20 | Fund | 294.29800000 |
| 2017-01-23 | Fund | 293.80800000 |
| 2017-01-24 | Fund | 294.64100000 |
| 2017-01-25 | Fund | 296.76600000 |
| 2017-01-26 | Fund | 297.37800000 |
| 2017-01-27 | Fund | 297.26900000 |
| 2017-01-30 | Fund | 294.67800000 |
| 2017-01-31 | Fund | 292.99700000 |
+------------+-------------------+---------------+
我需要将第三列变基为 100，所以我编写了以下完美运行的代码：
WITH CTE
AS (
SELECT CASE
WHEN shareClassdata.valueDate IS NULL
THEN NULL
ELSE performanceData.valueDate
END AS valueDate
,CASE
WHEN shareClassdata.benchmarkTypeName IS NULL
THEN NULL
ELSE performanceData.benchmarkTypeName
END AS benchmarkTypeName
,CASE
WHEN shareClassdata.NAVLocal IS NULL
THEN NULL
ELSE performanceData.NAVLocal
END AS NAVLocal
FROM getPerformances(2, 12045, 0, 308, 31) AS performanceData
LEFT JOIN (
SELECT *
FROM getPerformances(2, 12045, 0, 308, 31)
) shareClassdata ON shareClassdata.shareClassGroupId = performanceData.shareClassGroupId
AND shareClassdata.currencyId = performanceData.currencyId
AND shareClassdata.financialStructureGroupId = performanceData.financialStructureGroupId
AND shareClassdata.valueDate = performanceData.valueDate
AND shareClassdata.benchmarkTypeName = 'Fund'
WHERE performanceData.shareClassGroupId = 22050
AND performanceData.valueDate <= '2017-06-30 00:00:00.000'
AND (
isnull(performanceData.valueDate, '') <> ''
AND (
performanceData.benchmarkTypeName = 'Benchmark'
OR performanceData.benchmarkTypeName = 'Fund'
)
)
)
SELECT valueDate
,benchmarkTypeName
,(
sum(a.NAVLocal) / (
SELECT TOP 1 b.NAVLocal
FROM CTE AS b
WHERE b.NAVLocal != 0
AND a.benchmarkTypeName = b.benchmarkTypeName
ORDER BY b.valueDate ASC
)
) * 100 AS NAVLocal
FROM CTE AS a
WHERE valueDate IS NOT NULL
AND benchmarkTypeName IS NOT NULL
GROUP BY valueDate
,benchmarkTypeName
ORDER BY benchmarkTypeName ASC
,valueDate ASC
它给出了以下结果（注意：NAVLocal 列只是为了向您显示旧值与以前的值）：
+------------+-------------------+----------+------------------+
| valueDate | benchmarkTypeName | NAVLocal | NAVLocal rebased |
| 2016-11-30 | Benchmark | 3005.969 | 100 |
| 2016-12-01 | Benchmark | 2994.498 | 99.6183 |
| 2016-12-02 | Benchmark | 2981.919 | 99.1999 |
| 2016-12-05 | Benchmark | 2981.438 | 99.1839 |
| 2016-12-07 | Benchmark | 3020.056 | 100.4686 |
| 2016-12-09 | Benchmark | 3110.806 | 103.4876 |
| 2016-12-12 | Benchmark | 3086.448 | 102.6773 |
| 2016-12-13 | Benchmark | 3097.514 | 103.0454 |
| 2016-12-14 | Benchmark | 3069.051 | 102.0985 |
| 2016-12-15 | Benchmark | 3151.476 | 104.8406 |
| 2016-12-16 | Benchmark | 3147.683 | 104.7144 |
| 2016-12-19 | Benchmark | 3145.644 | 104.6465 |
| 2016-12-20 | Benchmark | 3175.352 | 105.6348 |
| 2016-12-21 | Benchmark | 3150.925 | 104.8222 |
| 2016-12-22 | Benchmark | 3138.262 | 104.401 |
| 2016-12-23 | Benchmark | 3140.907 | 104.489 |
| 2016-12-28 | Benchmark | 3142.341 | 104.5367 |
| 2016-12-29 | Benchmark | 3112.916 | 103.5578 |
| 2016-12-30 | Benchmark | 3081.546 | 102.5142 |
| 2017-01-03 | Benchmark | 3156.683 | 105.0138 |
| 2017-01-04 | Benchmark | 3147.517 | 104.7088 |
| 2017-01-05 | Benchmark | 3108.027 | 103.3951 |
| 2017-01-09 | Benchmark | 3121.824 | 103.8541 |
| 2017-01-10 | Benchmark | 3111.075 | 103.4965 |
| 2017-01-11 | Benchmark | 3156.886 | 105.0205 |
| 2017-01-12 | Benchmark | 3095.468 | 102.9773 |
| 2017-01-13 | Benchmark | 3109.505 | 103.4443 |
| 2017-01-16 | Benchmark | 3109.505 | 103.4443 |
| 2017-01-17 | Benchmark | 3080.419 | 102.4767 |
| 2017-01-18 | Benchmark | 3086.207 | 102.6692 |
| 2017-01-19 | Benchmark | 3098.868 | 103.0904 |
| 2017-01-20 | Benchmark | 3089.861 | 102.7908 |
| 2017-01-23 | Benchmark | 3062.108 | 101.8675 |
| 2017-01-24 | Benchmark | 3079.78 | 102.4554 |
| 2017-01-25 | Benchmark | 3108.255 | 103.4027 |
| 2017-01-26 | Benchmark | 3127.415 | 104.0401 |
| 2017-01-27 | Benchmark | 3114.021 | 103.5945 |
| 2017-01-30 | Benchmark | 3099.602 | 103.1149 |
| 2017-01-31 | Benchmark | 3063.617 | 101.9177 |
| 2016-11-30 | Fund | 280.773 | 100 |
| 2016-12-01 | Fund | 279.075 | 99.3952 |
| 2016-12-02 | Fund | 278.431 | 99.1658 |
| 2016-12-05 | Fund | 279.704 | 99.6192 |
| 2016-12-07 | Fund | 284.042 | 101.1642 |
| 2016-12-09 | Fund | 290.476 | 103.4558 |
| 2016-12-12 | Fund | 289.819 | 103.2218 |
| 2016-12-13 | Fund | 292.155 | 104.0538 |
| 2016-12-14 | Fund | 290.95 | 103.6246 |
| 2016-12-15 | Fund | 291.622 | 103.8639 |
| 2016-12-16 | Fund | 292.257 | 104.0901 |
| 2016-12-19 | Fund | 293.073 | 104.3807 |
| 2016-12-20 | Fund | 294.237 | 104.7953 |
| 2016-12-21 | Fund | 293.813 | 104.6443 |
| 2016-12-22 | Fund | 292.814 | 104.2885 |
| 2016-12-23 | Fund | 293.084 | 104.3846 |
| 2016-12-28 | Fund | 294.895 | 105.0296 |
| 2016-12-29 | Fund | 294.22 | 104.7892 |
| 2016-12-30 | Fund | 295.241 | 105.1529 |
| 2017-01-03 | Fund | 296.374 | 105.5564 |
| 2017-01-04 | Fund | 294.599 | 104.9242 |
| 2017-01-05 | Fund | 295.307 | 105.1764 |
| 2017-01-09 | Fund | 294.184 | 104.7764 |
| 2017-01-10 | Fund | 294.421 | 104.8608 |
| 2017-01-11 | Fund | 294.967 | 105.0553 |
| 2017-01-12 | Fund | 293.688 | 104.5998 |
| 2017-01-13 | Fund | 295.943 | 105.4029 |
| 2017-01-16 | Fund | 294.739 | 104.9741 |
| 2017-01-17 | Fund | 294.243 | 104.7974 |
| 2017-01-18 | Fund | 295.486 | 105.2401 |
| 2017-01-19 | Fund | 294.833 | 105.0076 |
| 2017-01-20 | Fund | 294.298 | 104.817 |
| 2017-01-23 | Fund | 293.808 | 104.6425 |
| 2017-01-24 | Fund | 294.641 | 104.9392 |
| 2017-01-25 | Fund | 296.766 | 105.696 |
| 2017-01-26 | Fund | 297.378 | 105.914 |
| 2017-01-27 | Fund | 297.269 | 105.8752 |
| 2017-01-30 | Fund | 294.678 | 104.9523 |
| 2017-01-31 | Fund | 292.997 | 104.3536 |
+------------+-------------------+----------+------------------+
但是，查询在大型数据集上 运行 非常非常非常慢。有没有更好的方法来执行此计算？
关于变基数字的提醒：
对于每个系列的基准，结果按值 date.The 升序排序，最重要的值是每个系列中最旧的记录。该系列的每个 NAV 值除以最旧的 NAV，乘以 100
您可以使用公式访问此电子表格 https://docs.google.com/spreadsheets/d/1esChCFPTLa9df3xWuLmT5-JONsS8j8vTZpAjsx7fb9M/edit?usp=sharing
谢谢
Window 函数可能有助于提高性能，我从第一个输出开始，但您应该了解如何使用 window 函数
实现它USE
tempdb
GO
DROP TABLE IF EXISTS Rebase;
CREATE TABLE Rebase(
valueDate DATE NOT NULL
,benchmarkTypeName VARCHAR(9) NOT NULL
,NAVLocal NUMERIC(8,3) NOT NULL
);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-11-30','Benchmark',3005.969);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-01','Benchmark',2994.498);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-02','Benchmark',2981.919);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-05','Benchmark',2981.438);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-07','Benchmark',3020.056);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-09','Benchmark',3110.806);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-12','Benchmark',3086.448);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-13','Benchmark',3097.514);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-14','Benchmark',3069.051);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-15','Benchmark',3151.476);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-16','Benchmark',3147.683);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-19','Benchmark',3145.644);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-20','Benchmark',3175.352);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-21','Benchmark',3150.925);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-22','Benchmark',3138.262);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-23','Benchmark',3140.907);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-28','Benchmark',3142.341);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-29','Benchmark',3112.916);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-30','Benchmark',3081.546);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-03','Benchmark',3156.683);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-04','Benchmark',3147.517);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-05','Benchmark',3108.027);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-09','Benchmark',3121.824);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-10','Benchmark',3111.075);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-11','Benchmark',3156.886);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-12','Benchmark',3095.468);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-13','Benchmark',3109.505);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-16','Benchmark',3109.505);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-17','Benchmark',3080.419);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-18','Benchmark',3086.207);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-19','Benchmark',3098.868);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-20','Benchmark',3089.861);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-23','Benchmark',3062.108);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-24','Benchmark',3079.78);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-25','Benchmark',3108.255);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-26','Benchmark',3127.415);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-27','Benchmark',3114.021);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-30','Benchmark',3099.602);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-31','Benchmark',3063.617);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-11-30','Fund',280.773);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-01','Fund',279.075);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-02','Fund',278.431);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-05','Fund',279.704);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-07','Fund',284.042);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-09','Fund',290.476);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-12','Fund',289.819);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-13','Fund',292.155);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-14','Fund',290.95);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-15','Fund',291.622);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-16','Fund',292.257);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-19','Fund',293.073);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-20','Fund',294.237);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-21','Fund',293.813);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-22','Fund',292.814);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-23','Fund',293.084);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-28','Fund',294.895);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-29','Fund',294.22);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2016-12-30','Fund',295.241);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-03','Fund',296.374);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-04','Fund',294.599);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-05','Fund',295.307);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-09','Fund',294.184);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-10','Fund',294.421);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-11','Fund',294.967);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-12','Fund',293.688);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-13','Fund',295.943);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-16','Fund',294.739);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-17','Fund',294.243);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-18','Fund',295.486);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-19','Fund',294.833);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-20','Fund',294.298);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-23','Fund',293.808);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-24','Fund',294.641);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-25','Fund',296.766);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-26','Fund',297.378);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-27','Fund',297.269);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-30','Fund',294.678);
INSERT INTO Rebase(valueDate,benchmarkTypeName,NAVLocal) VALUES ('2017-01-31','Fund',292.997);
SELECT
valueDate
, benchmarkTypeName
, NAVLocal
, FIRST_VALUE(NAVLocal) OVER(PARTITION BY benchmarkTypeName ORDER BY valueDate) AS Oldest
, (NAVLOCAL / FIRST_VALUE(NAVLocal) OVER(PARTITION BY benchmarkTypeName ORDER BY valueDate)) * 100 aS RebaseValue
FROM
Rebase