改變行列

Question

我需要MODEL從下面的表

------------------------ 
MODEL YEAR PRICE 
------------------------ 
AUDI 2012 45 LAKHS 
BENZ 2013 40 LAKHS 
BMW  2011 38 LAKHS 

我想要一個SQL查詢來翻轉表（行作爲coloumns）

--------------------------------------- 
Model  AUDI  BENZ  BMW 
---------------------------------- 
Year  2012  2013  2011 
Price  45Lakhs 40Lakhs 38Lakhs 

Answer 1

你可以試試這個它完美的作品

CREATE TABLE SOMEDATA(
         MODEL varchar(10), 
         YEAR int, 
         PRICE int 
         ) 

INSERT INTO SOMEDATA VALUES('AUDI' , 2012 , 45) 
INSERT INTO SOMEDATA VALUES('BENZ' , 2013 , 40) 
INSERT INTO SOMEDATA VALUES('BMW' , 2011 , 38) 


select * from SOMEDATA 

SELECT 'Year' as Model, AUDI, BENZ,BMW 
FROM (
SELECT MODEL, YEAR 
FROM SOMEDATA) up 
PIVOT (avg(YEAR) FOR MODEL IN (AUDI, BENZ,BMW)) AS pvt 

UNION ALL 

SELECT 'Price' as Model, AUDI, BENZ,BMW 
FROM (
SELECT MODEL,Price 
FROM SOMEDATA) up 
PIVOT (avg(Price) FOR MODEL IN (AUDI, BENZ,BMW)) AS pvt 

drop table SOMEDATA 

Answer 2

有翻轉的行和列噸引用一下：

how to select columns as rows?

Rows in columns

https://www.simple-talk.com/sql/t-sql-programming/creating-cross-tab-queries-and-pivot-tables-in-sql/