另一个SQL枢轴

有关旋转的快速问题。我有以下数据：另一个SQL枢轴

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

我想将它旋转如下

[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是主键。非常感谢您的帮助。 PS：我会再试一次，直到那时。

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2017-04-19 herme 0

这是报告的目的呢？如果是这样，这应该在报告工具中完成。如果没有，你的第一个挑战就是获取列名作为数据值。列C1-C5是否已修复？这些可以硬编码为行吗？你在这个表中有固定数量的行吗？你说如果你有一千行，那么你想变成一千列 –

这些列是固定的（其中50个）;另一方面行是灵活的，并且事先不知道（是的，1000行将产生1000列，50行） –

你可以UNPIVOT然后PIVOT表。这是一个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

演示链接：Rextester

来源

2017-04-20 02:57:23 TriV

非常感谢。 –

这是一种长而丑陋的方式，但它会转动您的数据。

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#

来源

2017-04-19 23:46:14 Jason

另一个SQL枢轴

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