It is worth exploring and using in solving practical problems. It means you get the table with 1000 columns. To use this you need three things: 1. So, in my opinion, there is no easy way to do it. In this spot, I have to make a small digression and describe the term of an application domain. It also allows performing aggregations, wherever required, for column values that are expected in … In this article, I will show you how to accomplish this task by introducing a SQLCLR stored procedure MATRIX.Transposing that does all the magic with rotation. However, you might get data in SQL Server form a matrix from other systems, and meet the need to transpose it. For example, if we execute T-SQL like in the listing below. This is extremely important for understanding the performance of the stored procedure. I need to convert this report into one which has a single row for each order. In the solution, there are several T-SQL scripts. America],[Total Europe & Eurasia], [Total Middle East],[Total Africa],[Total Asia Pacific]'. You are probably asking yourself if the solution limited to newest SQL Server version? When a dataset is formed, then it is easy to perform many types of transformations. If the application domain is loaded, I get the result, transpose first 1000 rows in 3 seconds. According to Microsoft documentation, the context connection allows you to execute T-SQL statements in the same context that was used when your code was invoked in the first place. The solution source code can be found on GitHub here. your table will look like this: Step 3: Now find a column in your table which has common value. There is an option with pivoting which includes aggregation and only moves the values from one column to column headings. SQLÂ Apr 18, 2014 Apr 18, 2014 / By Mohamed El-Qassas / Microsoft SQL Server, SQL Server 2008, SQL Server 2012 / Convert Rows to columns using 'Pivot' in SQL Server when columns are string data type, convert the structure of the table data into a PIVOT, Pivot table without using Aggregiate function, Pivot with out aggregate, ROW_NUMBER() OVER. Therefore, if you would like to transpose the results of your query, you will run a query like that in the listing below once the solution is in place. However, you will get the result, as shown in the image below. This can be accomplished by: The solution proposed in this tip explores two SQL Server commands that can help us achieve the expected results. Converting columns into rows in SQL Server is not a new thing, we often face this kind of scenarios. In the script, the table is filtered passing two parameters and the WHERE clause. Applies to: SQL Server (all supported versions) Azure SQL Database Azure SQL Managed Instance Azure Synapse Analytics Parallel Data Warehouse You can use the PIVOT and UNPIVOT relational operators to change a table-valued expression into another table.PIVOT rotates a table-valued expression by turning the unique values from one column in the expression into multiple … In order to get the same result as in Phil’s example, you must call the MATRIX.Transposing stored procedure as shown in the listing bellow. The name values now become the column names. To run Phil’s solution, you must be running at least SQL Server 2016 version and make sure that the database is in 130 compatibility mode. WHERE SalesOrderId >= @salesId1 AND SalesOrderId <= @salesId2; '@salesId1 int=43665,@salesId2 int=43671', --EXEC MATRIX.TRANSPOSING @query = 'SELECT * FROM sys.databases'. The result will look similar to what is shown in the image below. The first column is named Key, and the others are Value, Value1, and so on. SqlPipe allows managed stored procedures running in process in a SQL Server database to return results to the caller. It appears that your VAL column is a varchar so you will have to use either the select sbno, Test1, Test2, Test3 from ( select test_name, sbno, val from yourtable ) d pivot ( max(val) for test_name in (Test1, Test2, Test3) ) piv; See SQL Fiddle with Demo. Fortnightly newsletters help sharpen your skills and keep you ahead, with articles, ebooks and opinion to keep you informed. Now back to the main topic: in the table below, each parameter is explained in detail. How to Rollup Multiple Rows into a Single Row in SQL Server. This class cannot be inherited. Many thanks for all the high quality answers. However, we are all faced with data in a table format such as an Excel PivotTable or a tabular report that … The listing below shows how to get the dataset. For the demonstration, we will use the production.products and production.categories tables from the sample database: The following query finds the number of products for each product category: Here is the output: Our goal is to turn the category names from the first column of the output into multiple columns and count the number of products for each category name as the following picture: In addition, we can add the model year to group the category by model year as shown in the following output: The most interesting thing here is the so-called context connection. Oracle Database 11g introduced the pivot operator. It could be a permanent or temporary table name. In the first statement the @Rco value is 0 and in the second statement is 1. Therefore, to use this solution as a whole, I included support for signing the assembly by using the asymmetric key. Although SQLCLR seems to be a second-class citizen on SQL Server, there are situations when could replace T-SQL. If you notice, Marketing has got two rows, one for each of the employee’s within that department, and the same is the case for Research and Development and Accounting and Finance. / By Mohamed El-Qassas / Microsoft SQL Server / Convert Rows to columns using 'Pivot' in SQL Server when columns are string data type, convert the structure of the table data into a PIVOT, Pivot table without using Aggregiate function, Pivot with out aggregate, SQL Server 2014, SQL Server 2016, SQL Server 2017, The PIVOT Clause is Only for Aggregates The properties of each database are listed vertically instead of horizontally. Then it creates a login and grants the unsafe assembly permission to that login. Also, what we should do with our results? This process of loading an application domain takes time (this is a performance penalty). The key point here is to pass @columnMapping as a new table header and to set @keyValueOption to 1. The application domain is a lightweight process used to enforce isolation between running .NET code within the same SQLOS process. !-------, --------------------------------------------------------------------------------------, 'CREATE ASYMMETRIC KEY [askTransposingMatrix]', FROM ASYMMETRIC KEY askTransposingMatrix', GRANT UNSAFE ASSEMBLY TO [loginTransposingMatrix];', --remember that these are the column names of the original table. The query and its parameters are passed as parameters to the MATRIX.Transposing stored procedure. There is a maximum number of columns that you can have per SQL Server table; it could be up to 30000 columns. Maybe, in the future, I will remove this limitation and create some configuration table in which users can decide what is a maximum number of rows to transpose. The latest one, An Easier Way of Pivoting Data in SQL Server, inspired me to start exploring another option to transpose a result from a query. In this article. Also, you can download the complete solution from GitHub and deploy the solution through Visual Studio. The mandatory requirement of the operator is that you must supply the aggregate function with only a numeric data type. Apply ROW_NUMBER() function over this column. The project uses .NET 2.0. Prerequisites Install MS SQL Server 2012. It seems that SSMS is a little bit confused when has to display SQLCLR stored procedure parameters. (5332, 5504, 5780, 6057, 6054, 6384, 6624, 6782, 7035, 7190, 7083). The filter is applied successfully. This gives the users the ability to transpose columns from a SQL Server table easily and create reports as per the requirements. Such a mandatory requirement is usually not an issue as most aggregations and subsequent pivoting is performed against fields of numeric data type. Wow! The SQLCLR framework allows you to define only one T-SQL statement for pre-deployment. Step 1: Create the test table. The generic header is displayed, highlighted with yellow in the image above. You can see the result in the image below. I have opted to replaced my PIVOT statement with a series of CASE statements as Visakh recommended. Sending results is where SQLCLR magic ‘comes to light.’. It means that you can use the solution starting with SQL Server 2005! (2917, 2928, 3063, 3236, 3315, 3486, 3413, 3579, 3678, 3763, 3888), (24569, 25157, 26035, 25900, 26244, 27954, 28893, 30001, 30588, 31119, 32444). ) In the solution, there are some interesting tests which are located in the Test.sql file. The post-deployment script transfers the resulting stored procedure from the default DBO schema to newly created MATRIX schema and creates some defaults. Yes, I learned a lot about JSON support in SQL Server from his article, but that didn’t keep me from exploring other possibililties. SQL pivot multiple columns without aggregate. SendResultRow, as the name implies, sends a single row of data back to the client. The solution uses SQL Server Database Project as the template. All code connected with transposing the DataTable is located in TableManipulation.cs. In the solution, there are two kinds of transformations which are determined by the parameter @keyValueOption. In the article, I showed you how to use SQLCLR to accomplish this task. You can notice in the image below that in the first case the header is formed based on the database name. Place a pivot clause containing these items after the table name, like so:So to c… This solution is limited to 1000. The result of SELECT * FROM sys.databases is displayed in the image below. SendResultStart marks the beginning of a result set to be sent back to the client and uses the record parameter to construct the metadata that describes the result set. What these defining values are 3. The whole task is accomplished by utilizing the SqlPipe class. (NOTE: To run it, you must install objects from his article.). In the image below, I outlined the mandatory parameter in red. This involves turning columns into rows by, in effect, transposing the two coordinates. To check your installation, expand the Programmability node to be sure the stored procedure is there as well as the SQLCLR assembly, as shown in the image below. Without Phil, I would never start investigating how to do transposing the query result. After deploying the solution from VS or running setup.sql, your database model will be extended with a newly created stored procedure named MATRIX.Transposing (NOTE: MATRIX is the database schema). Some pivot tables are also created to help in data analysis, mainly for slicing and dicing with the data and generate analytical queries after all. The stored procedure takes several parameters. If you woul like to clean up your environment after playing with this solution, there is a script for this purpose, located in Setup directory as well as in the attachment of the article. [Total S. & Cent. To obtain the context connection, you must use the context connection string keyword. In the solution, getting the data is accomplished in DataAccess.cs. By default, it is turned on, and it is not recommended to turn it off. The XML option to transposing rows into columns is basically an optimal version of the PIVOT in that it addresses the dynamic column limitation. (NOTE: The column is name.). There is, of course, a lot of difference between a pivot and a transpose because columns in a SQL Table represent the discrete values of entities, not values in a range. In the article, Multiple Options to Transposing Rows into Columns, I covered various options available in SQL Server to rotating a given row into columns. The column that has the values defining the new columns 2. As you probably expect SendResultEnd marks the end of a result set and returns the SqlPipe instance to the initial state. Also, to conclude the part of sending the result back to the client, SqlDataRecord represents a single row of data and its metadata. After transposing (executing the query from the listing above ), you will get the results as shown in the image below. Another possibility, as you might guess, is to use .NET. 'SELECT SalesOrderID , salesordernumber , purchaseordernumber , OrderDate , ShipDate , SubTotal , TaxAmt , TotalDue. You can see the whole script in the listing below. When a user asks for some functionality located in your assembly the first time, an application domain is created. This setting requires strong signing assembly, and that was not the case prior SQL Server 2017 version if we marked the project as SAFE. Furthermore, the results could be saved into a temporary table or permanent table as is shown in the listing below. Yes, you can use a cursor or maybe you can accomplish this task by using an XML transformation. In SQL Server 2017, there is a new instance level setting named clr strict security. What to show in the new columnsThe value in the new columns must be an aggregate. Copyright ©document.write(new Date().getFullYear()); All Rights Reserved, Create log file with date and time in batch script, How to declare global variable in objective-c, How to call base class method from derived class in Java, Lodash merge array of objects into one object. SQL: Transpose rows to columns without aggregate function, Still an aggregation, but you can use a simple CASE statement per value, grouping by [date], [file] to get one row per combination; SELECT [file] Transpose rows and columns with no aggregate. SSMS has powerful capabilities to copy the result and paste, for example, into an Excel file. Please see the attached screen shot showing the format I have and the one that is needed. Finally, take a look at the @rco parameter. Similarly, there is a post-deploy script that is executed after the assembly is published. In short, T-SQL is not suitable enough to transpose the query result. In the file, you can find two T-SQL scripts. To explain the rest of the parameters, let us take the Phil example. If you set @keyValueOption to 0, @columnMapping is ignored, and the result will look like the image below. SSMS performs well when displaying standard T-SQL stored procedure parameters. Execute the T-SQL displayed in the listing below. Calling a stored procedure always should begin with keyword EXEC, Do we specify custom headers with transposing. You can see the post-deployment script in the listing below. I like Phil Factor’s articles. If we like to save result into permanent table or temp table. This makes switching rows to columns easy. I want to dynamically convert rows into columns. Lets say, there are values in different columns within a table and you want to perform some aggregations on those columns combining them all together or you may want them in a row … In order to explore the solution, start up Visual Studio Community Edition (or any kind of licensed edition). SQLCLR uses application domains to isolate execution of .NET code on a per database and per assembly owner basis. Recently, I came across a description of a transformation operation using SQL Server CLR – the goal is to convert, or transpose, columns into rows and rows into columns. One is for deploying the solution named Setup.sql and the other is for cleaning the environment after playing with the solution named CleanUp.sql. However, sometimes the nat… When you transpose the original data and produce another table, the code must send the results. That is not what T-SQL is designed for. The answers/resolutions are collected from stackoverflow, are licensed under Creative Commons Attribution-ShareAlike license. The code uses classic ADO.NET techniques to get an object of type Dataset. For example, when you execute the simple T-SQL SELECT * FROM sys.databases to get all databases on the current SQL Server instance, the results look better somehow rotated. Help is available at any point by executing. I tested the solution on all SQL Server versions, starting with SQL 2005 until SQL 2017. Pivot rows to columns without aggregate, The PIVOT function requires an aggregation to get it to work. How to create a pivot query in sql server without aggregate function. Outlined in red is the project properties. The column on which rotation will take place after running the new code is outlined with red. But in this place, you have to ask yourself why you need a table of thousands of columns? I wrote maybe because, to be honest, I never tested such possibilities. The key point here was to pass a @tableName parameter. for this you can use scripts shown below Step 2: After executing the script. It means building a SQLCLR project. For those who do not want to play with .NET source code, there is a ZIP file in the attachment of the article. (NOTE: To deploy to 2017, you will have to save the snk file and modify the path and password before running.). To transpose table ‘Person.Person’ which has about 20K records, you will get the warning like in the image below. I have a CTE with the name T which holdS dates like: UserId tempStoredDate-----3 2012-12-01 5 2012-12-02 1 2012-12-03 4 2012-12-04 7 2012-12-05 I have a Employee table: (EMP_ID INT P.K, EMP_NAME VARCHAR(50)) I have an Attendance table which holds attendance dates marked by employees: (DetailsId int P.K, EMP_ID F.K, … A row represents an entity, and a column an attribute of an entity. An application domain is a construct in the Microsoft .NET Framework common language runtime (CLR) that is the unit of isolation for an application. One of the options included the use of a PIVOT relational operator. In this blog, we'll discuss converting values of rows into columns (PIVOT) and values of columns into rows (UNPIVOT) in MS SQL Server. Phil’s articles are not just educational but also inspiring. The first and the second T-SQL statement differ by the @Rco parameter. Get the latest news and training with the monthly Redgate UpdateSign up, 'D:\VS2017_PROJECTS\TransposingMatrix\TransposingMatrix\' with your path, --!Replace password with more appropriate for your situation.!!!!!!!!!!!!!!!!!!!!!! The first case the header is formed based on the database name..! As you might guess, is now the header of our table table as is in! When you transpose the original data and produce another table, the pivot operator solution! 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Required, for example, count, sum, min, etc 19276, 19223, 19075,,. The DataTable object as shown in the new code is outlined with red SQLCLR framework allows you to specify alias. For this you can see that the @ query parameter is the so-called context,! As parameters to the result of the first and the result is shown in the,! You can see the whole task is accomplished in DataAccess.cs this place, you have to make a digression! Our results code must send the results of a result as if were... On a new instance level setting named CLR strict security generic header is formed on. Relational operator and creates some defaults Edition ( or any kind of licensed Edition ) to newly created matrix and! Would like to save result into permanent table as is shown in new! Some interesting tests which are located in the solution on all SQL Server database as! Your assembly the first query the format I have to process your results row row. 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Code connected with transposing that the @ query parameter is explained in detail 20K... And returns the SqlPipe instance to the result of SELECT * from sys.databases is displayed, highlighted with in... Multiple rows into columns. ” let sql server transpose rows to columns without aggregate s take a look at the @ parameter... Are passed as parameters to the main topic: in the first row, so orders multiple!, 23518, 23330, 22926, 23365, 23418, 23644 ) to light. ’ is... 7855, 8201, 8455, 8770, 9011, 9353, 9570 ): to run,. The application domain I showed you how to Rollup multiple rows, 5 products max first and where. @ keyValueOption to 1 highlighted with yellow in the image below my,. Can have per SQL Server table ; it could be a second-class citizen on Server. Classic ADO.NET techniques to get an object of type Dataset, TaxAmt, TotalDue columns 2 * from is! Table below, I would never start investigating how to do transposing the two coordinates Community... Notice in the image below DBO schema to newly created matrix schema and creates some.! Use the solution, start up Visual Studio 2013 as well, transpose 1000... The below table, TblDeparmentEmployee accomplish such a mandatory requirement of the row! T-Sql query in order to check to see if there is no easy way to transpose row! Not an issue as most aggregations and subsequent pivoting is performed against fields numeric! Represents an entity SQLCLR framework allows you to specify an alias for each pivot value making... Script is located in TableManipulation.cs have per SQL Server turned on, and the second case you. Your skills and keep you informed do this, execute the T-SQL script in the image.... Into one which has common value T-SQL is not suitable enough to transpose the query.... To 30000 columns SQL query to transpose a result set and returns the SqlPipe instance to main... Must be executed before the assembly is published your SQLCRL function is always much slower than the next.... It seems that SSMS is a new thing, we often face this kind of Edition. Expected in … Oracle database 11g introduced the pivot operator, min, etc into in... Statement differ by the stored procedure from the earlier test, is now the header is formed, then creates! … Oracle database 11g introduced the pivot statement with a series of case statements as Visakh recommended flip as. Into permanent table or permanent table or permanent table or temp table each value. The others are value, Value1, and the result and paste, for column that! Required, for column values that are expected in … Oracle database 11g introduced the pivot function an! Accomplished in DataAccess.cs SQL 2017, 5504, 5780, 6057, 6054, 6384, 6624 6782. Mandatory requirement is usually not an issue as most aggregations and subsequent pivoting is against! Names are separated by a comma of type Dataset the attached screen shot showing the format I have to! Table header and to set @ keyValueOption to 1 5780, 6057, 6054, 6384,,! 5 products max you need a table is ignored, and the result of article. Executed before the assembly by using an XML transformation SQL 2017 loaded, I never. And keep you ahead, with articles, ebooks and opinion to keep you informed if there is an with. Columnmapping is ignored, and meet the need to transpose it up to 30000.!: now find a column in your table which has a single row for each.! And only moves the values from one column to column headings SSMS performs well when standard! Studio 2017, but it doesn ’ t quite accomplish the task table which has a row! Sqlclr to accomplish such a task of transposing without aggregation, you need! Table below, I would never start investigating how to do this, execute the T-SQL script the! Similar to what is shown in the new columns must be executed before the assembly is published Rco value 0! Of SELECT * from sys.databases is displayed in the listing below per SQL Server 2005 solution a. 1000 rows in SQL Server database Project as the template us get back the.