Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
310 views
in Technique[技术] by (71.8m points)

SQL Server : Querying Multiple Rows, Returning In One

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.

Current Dataset

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

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


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...