The PIVOT and UNPIVOT operators provide simple syntax to transform rows into columns, and columns into rows, providing users with flexibility and ease of use. Using PIVOT and UNPIVOT makes it easier to port applications to Teradata Database.
- The PIVOT operator easily transforms rows into columns. The function is also useful for reporting purposes. It allows users to aggregate and rotate data and create meaningful, easy-to-read tables.
- The UNPIVOT operator works the opposite of PIVOT, transforming columns into rows, and can transform non-normalized data into a normalized result set.
The SELECT statement is extended to support PIVOT and UNPIVOT operators in the FROM clause.
For more information see Aggregation of Pivoted Columns and Teradata Vantage™ SQL Functions, Expressions, and Predicates, B035-1145.