在 SQL 服务器中进行内部联接后将行转换为列

Question

在 INNER JOIN 之后我得到 6 行，相同 location_id，相同 location_name 但图像值不同，每个location_id有6张对应的图片，as this image

但我想将图像行转换为列 (img1, img2, img3 ... img6) 所以最终结果 table 将是 [location_id, location_name, img1, img2, img3, img4, img5, img6]

如何构建结果？

Answer 1

假设您最多只有 6 张图片

select 
   location_id, location_name, 
   [1] as img1, 
   [2] as  img2, 
   [3] as  img3,  
   [4] as img4, 
   [5] as  img5, 
   [6] as img6
from
    (
     select 
        location_id, location_name,img_name, 
         row_number() over(partition by location_id order by img_name) rn 
     from innrjointbl
     )s
PIVOT
(MAX(img_name) for rn in ([1],[2],[3],[4],[5],[6])) p

示例 SQL Fiddle: http://sqlfiddle.com/#!3/e89d94/2

在 SQL 服务器中进行内部联接后将行转换为列

Convert Rows to columns after inner join in SQL Server

sql

sql-server

pivot