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XPath Sum
Last modified: August 20, 2024
Overview
The sum() function returns the sum of its argument.
The function requires an XPath query as argument.
The function must specify a column in the query to aggregate.
The query must specify an attribute that has a numeric type.
Examples
This query returns the sum of the total prices of all placed orders:
sum(//Sales.Order/TotalPrice)
This query returns the sum of the total prices of all the orders placed by a customer named “Jansen”:
sum(//Sales.Order[Sales.Customer_Order/Sales.Customer/Name = 'Jansen']/TotalPrice)