16.20 - Example: Calculating the Fraction of Cost - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Functions, Expressions, and Predicates

Product
Advanced SQL Engine
Teradata Database
Release Number
16.20
Release Date
March 2019
Content Type
Programming Reference
Publication ID
B035-1145-162K
Language
English (United States)

The following example uses a Valued CASE expression to calculate the fraction of cost in the total cost of inventory represented by parts of type ‘1’:

   SELECT SUM(CASE part
               WHEN '1' 
               THEN cost
               ELSE 0
              END
             )/SUM(cost)
   FROM t;