🐫 How To Use Pivot In Sql

1 Answer. If you want to transform the results of your stored procedure, then you will need to use UNPIVOT and PIVOT to get your final product: select * from ( select date, value, unit from ( select * from t1 ) x unpivot ( [value] for unit in ( [unita], [unitb], [unitc])) u ) a pivot ( sum (value) for date in ( [2010], [2011], [2012]) ) p. You 1. In Postgres, you would use FILTER: SELECT Order, MAX (Value) FILTER (WHERE Element = 'Item') AS Item, MAX (Value) FILTER (WHERE Element = 'Quantity') AS Quantity, MAX (Value) FILTER (WHERE Element = 'TotalCost') AS TotalCost FROM MyTable GROUP BY 1; Note that ORDER is a SQL Keyword so it is a bad choice for a column name. Method 2: Read data from a CSV file and prepare a PIVOT data using Python scripts in SQL Server. In the previous examples, our source data was in SQL tables. Python can read CSV, Excel files as well using pandas’ modules. We can store the CSV file locally in a directory, or it can read directly from a Web URL. Actually, you'd be better off doing this in the client. Suppose you're using Reporting Services, get the data as per your first result set and display it using a Matrix, with author_id and review_id in the Row Group, question_id in the Column Group, and MAX(answer_id) in the middle. A query is doable, but you'd need dynamic SQL right now. Second, while the EAV model is more like a design smell than an Anti-Pattern, the aforementioned SQL query is surely an Anti-Pattern from a performance perspective. We can do way better than this! SQL PIVOT. Both Oracle and SQL Server support the PIVOT SQL clause, and so we can rewrite the previous query as follows: Sorted by: 2. Since you are using SQL Server you can implement the PIVOT function. If you have a known number of values then you can hard code the query using the following: select device_name, App1, App2, App3, App4, App5 from ( select device_name, app_id, 'App'+ cast (row_number () over (partition by device_name order by device_name) as Write resolution instructions: Use bullets, numbers and additional headings Add Screenshots to explain the resolution Add diagrams to explain complicated technical details, keep the diagrams in lucidchart or in google slide (keep it shared with entire Snowflake), and add the link of the source material in the Internal comment section Go in depth if required Add links and other resources as here is my stored procedure. CREATE proc [dbo]. [sp_showmarks] ( @st _id int , @result int output) as set @result=-1 IF ( EXISTS ( SELECT * FROM Marks WHERE Student_Id = @st _id)) BEGIN SELECT * INTO #TempMarks FROM ( SELECT Student_Id,Subject,Term,Obt_Marks FROM Marks WHERE Student_Id = @st _id ) as x DECLARE @DynamicPivotQuery AS NVARCHAR JOhF.

how to use pivot in sql