17.00 - 17.05 - Example: Using UNPIVOT with the EXCLUDE NULLS Clause - Advanced SQL Engine - Teradata Database

Teradata Vantageā„¢ - SQL Functions, Expressions, and Predicates

Product
Advanced SQL Engine
Teradata Database
Release Number
17.00
17.05
Published
June 2020
Language
English (United States)
Last Update
2021-01-30
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In this example, there are no rows with nulls in either the sales or cogs columns, and the rows are excluded in the output when using EXCLUDE NULLS clause. This is the default option.

SELECT *
FROM star1p UNPIVOT EXCLUDE NULLS (sales, cogs)  FOR  yr_qtr IN
((Q101Sales, Q101Cogs) AS 'Q101', (Q201Sales, Q201Cogs) AS 'Q201', (Q301Sales, Q301Cogs) AS 'Q301') Tmp;

country  state     yr_qtr        sales         cogs
-------  ------   --------   ------------    -------
Canada      ON     Q201           10            0
Canada      ON     Q301           10            0
USA         NY     Q101           45           25
USA         CA     Q101           30           15
USA         CA     Q201           50           20