How can you document or comment UNPIVOT queries effectively? What are the typical performance metrics to monitor when using UNPIVOT?

UNPIVOT is a relational operator that accepts two columns (from a table or subquery), along with a list of columns, and generates a row for each column ... Apr 1, 2013 ... I ran across someone trying to unpivot a question table. The answer they got surprised me. The answerer used CROSS APPLY with the VALUES keyword. Jan 27, 2022 ... This video covers how to use UNPIVOT in a table, which is the reverse of PIVOT and transforms columns into rows. Oct 19, 2020 ... My thinking is that somehow I need to create a pseudo group name for the columns, and I want to avoid using a union clause to get the data separately. Jun 11, 2024 ... UNPIVOT in Oracle SQL serves as the counterbalance to PIVOT, allowing users to transform column-based data into row-level information. By ... Jun 12, 2023 ... The UNPIVOT function in SQL is a powerful and useful operator that can help you transform your data in SQL Server. You can use it to normalize ... Jan 29, 2016 ... This “manual pivot” query performs about 25% better than the traditional PIVOT. The I/O reads and the estimated cost are both exactly the same. Nov 18, 2007 ... UNPIVOT (11g). Transforming columns into rows is easily accomplished with the SELECT command's UNPIVOT clause, introduced in Oracle 11g. (For ... Pivot ve Unpivot İşlemleri: Verileri yeniden şekillendirme ve özetleme. ... "SQL Cookbook: Query Solutions and Techniques for All SQL Users" - Anthony ... ... SQL, Microsoft SQL Server, Azure Data Factory, Power BI, and Databricks, let ... unpivot. Practical data modelling experience, understanding of star ...