How does UNPIVOT handle data quality issues during transformation? What are the trade-offs between using UNPIVOT and other data transformation techniques in terms of performance and complexity?

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. Nov 18, 2007 ... UNPIVOT (11g). Transforming columns into rows is easily accomplished with the SELECT command's UNPIVOT clause, introduced in Oracle 11g. (For ... Nov 21, 2008 ... This article shows how to use the new PIVOT and UNPIVOT operators in 11g, as well as giving a pre-11g solution to the same problems. Jul 6, 2017 ... I'm going to introduce you to it's little brother, UNPIVOT, which “rotating columns of a table-valued expression into column values” Unpivot data, sometimes called flattening the data, to put it in a matrix format so that all similar values are in one column. • Utilized Power Query in Power BI to pivot and unpivot data models for data cleansing and data massaging. • Secured… Show more. • Created effective reports ... Apr 30, 2021 ... In SQL Server, there are three different ways that you can perform unpivot action. As this wonderful stack overflow post summarized. Description. The UNPIVOT clause transforms multiple columns into multiple rows used in SELECT clause. The UNPIVOT clause can be specified after the table name ... Jan 27, 2011 ... SELECT Type, Category, "Profit" AS ProfRevCost, Profit AS Amount FROM theTable UNION SELECT Type, Category, "Revenue" AS ProfRevCost, Revenue AS ... 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 ...