[sql] Convert Rows to columns using 'Pivot' in SQL Server

Here is a revision of @Tayrn answer above that might help you understand pivoting a little easier:

This may not be the best way to do this, but this is what helped me wrap my head around how to pivot tables.

ID = rows you want to pivot

MY_KEY = the column you are selecting from your original table that contains the column names you want to pivot.

VAL = the value you want returning under each column.

MAX(VAL) => Can be replaced with other aggregiate functions. SUM(VAL), MIN(VAL), ETC...

DECLARE @cols AS NVARCHAR(MAX),
@query  AS NVARCHAR(MAX)
select @cols = STUFF((SELECT ',' + QUOTENAME(MY_KEY) 
                from yt
                group by MY_KEY
                order by MY_KEY ASC
        FOR XML PATH(''), TYPE
        ).value('.', 'NVARCHAR(MAX)') 
    ,1,1,'')
set @query = 'SELECT ID,' + @cols + ' from 
         (
            select ID, MY_KEY, VAL 
            from yt
        ) x
        pivot 
        (
            sum(VAL)
            for MY_KEY in (' + @cols + ')
        ) p '

        execute(@query);

Examples related to sql

Passing multiple values for same variable in stored procedure SQL permissions for roles Generic XSLT Search and Replace template Access And/Or exclusions Pyspark: Filter dataframe based on multiple conditions Subtracting 1 day from a timestamp date PYODBC--Data source name not found and no default driver specified select rows in sql with latest date for each ID repeated multiple times ALTER TABLE DROP COLUMN failed because one or more objects access this column Create Local SQL Server database

Examples related to sql-server

Passing multiple values for same variable in stored procedure SQL permissions for roles Count the Number of Tables in a SQL Server Database Visual Studio 2017 does not have Business Intelligence Integration Services/Projects ALTER TABLE DROP COLUMN failed because one or more objects access this column Create Local SQL Server database How to create temp table using Create statement in SQL Server? SQL Query Where Date = Today Minus 7 Days How do I pass a list as a parameter in a stored procedure? SQL Server date format yyyymmdd

Examples related to pivot

Laravel, sync() - how to sync an array and also pass additional pivot fields? Construct pandas DataFrame from list of tuples of (row,col,values) How to convert Rows to Columns in Oracle? TSQL PIVOT MULTIPLE COLUMNS Convert Rows to columns using 'Pivot' in SQL Server Efficiently convert rows to columns in sql server MySQL - sum column value(s) based on row from the same table SQL Server Pivot Table with multiple column aggregates Simple way to transpose columns and rows in SQL? MySQL pivot table query with dynamic columns

Examples related to pivot-table

Use Excel pivot table as data source for another Pivot Table PivotTable's Report Filter using "greater than" How to SUM parts of a column which have same text value in different column in the same row Use formula in custom calculated field in Pivot Table refresh both the External data source and pivot tables together within a time schedule Convert Rows to columns using 'Pivot' in SQL Server Ordering issue with date values when creating pivot tables Python Pandas : pivot table with aggfunc = count unique distinct PivotTable to show values, not sum of values Simple Pivot Table to Count Unique Values