另一個SQL樞軸

有關旋轉的快速問題。我有以下數據：另一個SQL樞軸

c1 | c2 | c3 | c4 | c5 
pk1 | r12 | r13 | r14 | r15 
pk2 | r22 | r23 | r24 | r25 
pk3 | r32 | r33 | r34 | r35

我想將它旋轉如下

[c1] | pk1 | pk2 | pk3 
c2 | r12 | r22 | r32 
c3 | r13 | r23 | r33 
c4 | r14 | r24 | r34 
c5 | r15 | r25 | r35

在我的例子，案件列C1是主鍵。非常感謝您的幫助。 PS：我會再試一次，直到那時。

來源

2017-04-19 herme 0

這是報告的目的呢？如果是這樣，這應該在報告工具中完成。如果沒有，你的第一個挑戰就是獲取列名作爲數據值。列C1-C5是否已修復？這些可以硬編碼爲行嗎？你在這個表中有固定數量的行嗎？你說如果你有一千行，那麼你想變成一千列 –

這些列是固定的（其中50個）;另一方面行是靈活的，並且事先不知道（是的，1000行將產生1000列，50行） –

你可以UNPIVOT然後PIVOT表。這是一個hardcode版本。

DECLARE @SampleData AS TABLE 
(
    c1 varchar(10), 
    c2 varchar(10), 
    c3 varchar(10), 
    c4 varchar(10), 
    c5 varchar(10) 
) 

INSERT INTO @SampleData 
VALUES 
('pk1', 'r12','r13','r14','r15'), 
('pk2', 'r22','r23','r24','r25'), 
('pk3', 'r32','r33','r34','r35') 

;with pvt AS 
    (
    SELECT c1, ColName, Value 
    FROM 
    (
     SELECT * FROM @SampleData sd 
    ) src 
    UNPIVOT 
    (
     Value FOR ColName IN (c2,c3,c4,c5) 
    ) pvt 
) 

SELECT ColName AS [c1], [pk1], [pk2], [pk3] 
FROM 
(
    SELECT * FROM pvt p 
) src 
PIVOT 
(
    Max(Value) FOR c1 IN ([pk1], [pk2], [pk3]) 
) pvt

演示鏈接：Rextester

來源

2017-04-20 02:57:23 TriV

非常感謝。 –

這是一種長而醜陋的方式，但它會轉動您的數據。

WITH pk1 AS (
SELECT c1,c2 'pk1' 
FROM Table_1 
WHERE c1 = 'pk1' 
UNION 
SELECT c1,c3 'pk1' 
FROM Table_1 
WHERE c1 = 'pk1' 
UNION 
SELECT c1,c4 'pk1' 
FROM Table_1 
WHERE c1 = 'pk1' 
UNION 
SELECT c1,c5 'pk1' 
FROM Table_1 
WHERE c1 = 'pk1'), 
pk1_rn AS 
(SELECT ROW_NUMBER() OVER(PARTITION BY c1 ORDER BY pk1 ASC) AS Row#, pk1 
FROM pk1), 

pk2 AS (
SELECT c1,c2 'pk2' 
FROM Table_1 
WHERE c1 = 'pk2' 
UNION 
SELECT c1,c3 'pk2' 
FROM Table_1 
WHERE c1 = 'pk2' 
UNION 
SELECT c1,c4 'pk2' 
FROM Table_1 
WHERE c1 = 'pk2' 
UNION 
SELECT c1,c5 'pk2' 
FROM Table_1 
WHERE c1 = 'pk2'), 
pk2_rn AS 
(SELECT ROW_NUMBER() OVER(PARTITION BY c1 ORDER BY pk2 ASC) AS Row#, pk2 
FROM pk2), 

pk3 AS (
SELECT c1,c2 'pk3' 
FROM Table_1 
WHERE c1 = 'pk3' 
UNION 
SELECT c1,c3 'pk3' 
FROM Table_1 
WHERE c1 = 'pk3' 
UNION 
SELECT c1,c4 'pk3' 
FROM Table_1 
WHERE c1 = 'pk3' 
UNION 
SELECT c1,c5 'pk3' 
FROM Table_1 
WHERE c1 = 'pk3'), 
pk3_rn AS 
(SELECT ROW_NUMBER() OVER(PARTITION BY c1 ORDER BY pk3 ASC) AS Row#, pk3 
FROM pk3) 

SELECT pk1_rn.pk1,pk2_rn.pk2,pk3_rn.pk3 
FROM pk1_rn 
JOIN pk2_rn ON pk1_rn.Row# = pk2_rn.Row# 
JOIN pk3_rn ON pk1_rn.Row# = pk3_rn.Row#

來源

2017-04-19 23:46:14 Jason

另一個SQL樞軸

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