Oracle SQL PIVOT and UNPIVOT: The Complete Guide

Oracle SQL PIVOT and UNPIVOT: The Complete Guide

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https://www.databasestar.com/oracle-sql-pivot/

Table of Contents

This guide covers the following topics.

The Problem

The PIVOT Keyword in Oracle SQL

Simple PIVOT Example

Specifying Grouped Columns

Using the WHERE Clause with PIVOT

Aliasing PIVOT Columns

Perform Multiple Aggregations

Group By Multiple Columns

PIVOT Example with XML

Dynamically Specifying Columns

Transposing Columns into Rows with UNPIVOT

A Simple UNPIVOT Example

Handling NULL Values in UNPIVOT

Aliases and UNPIVOT

Can You Use Oracle PIVOT Without an Aggregate?

...

Conclusion

The Oracle PIVOT and UNPIVOT features are powerful and are a very useful way to transform your data. They are often used with numerical values to aggregate data but can be used with text and date values as well.

It includes an XML feature to export your data in an XML format. You can also add aliases to the PIVOT rows and columns, add a WHERE clause, and perform multiple aggregations and groups.

Take some time to practice using this handy SQL feature and you’ll be better able to work with your data.

What feature about PIVOT and UNPIVOT do you find most useful? Let me know in the comments below.

Fuentes

Artículo:   "Oracle SQL PIVOT and UNPIVOT: The Complete Guide" Publicado en https://www.databasestar.com/ por Database Star el 2 jun 2023.  Consultado el 15 abr 2025.

URL: https://www.databasestar.com/oracle-sql-pivot/