問(wèn)題描述
問(wèn)題
我們目前正在處理一些存儲(chǔ)在下面的屏幕截圖中的數(shù)據(jù).我們使用它在 C# 應(yīng)用程序中顯示信息.我們讓?xiě)?yīng)用程序根據(jù)需要工作的唯一方法是將信息放在一行中.
我們?cè)?/p>
SQL Server:動(dòng)態(tài)透視 5 列
透視動(dòng)態(tài)列，無(wú)聚合
https://www.simple-talk.com/blogs/2007/09/14/pivots-with-dynamic-columns-in-sql-server-2005/
SQL Server 動(dòng)態(tài) PIVOT 查詢?
SQL Server 中的動(dòng)態(tài)樞軸列
使用動(dòng)態(tài)列的 SQL Pivot 查詢
Problem
We are currently working with some data which is stored as in the screenshot below. We are using this to display information in a C# application. The only way we can get the application to work as needed is to have the information in one single row.
We have tried some methods on Display multiple rows and column values into a single row, multiple column values to no avail.
Desired output
We require each row with the same date and vehicleID to be on the same row to be output from our stored procedure.
Any help would be greatly appreciated. Cheers.
if I understood correctly, you don't know how many unique date/vehicle_id combinations there are in the data. hence you can't just do a pivot over a set list of values.
in this case, you would need to build up a list of the date/vehicle ids dynamically, and then pivot over that list.
please check out the following examples involving dynamic SQL and pivot tables:
PIVOT in sql 2005
SQL Server : dynamic pivot over 5 columns
Pivot Dynamic Columns, no Aggregation
https://www.simple-talk.com/blogs/2007/09/14/pivots-with-dynamic-columns-in-sql-server-2005/
SQL Server dynamic PIVOT query?
Dynamic Pivot Columns in SQL Server
SQL Pivot Query with Dynamic Columns
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