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multi statement table valued function

Nice Narwhal answered on November 17, 2023 Popularity 2/10 Helpfulness 1/10

answer multi statement table valued function

multi statement table valued function

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--------------- Microsoft SQL Server ---------------------
-- Create a multi-statement table-valued function
CREATE FUNCTION fnCreditAdj (@HowMuch money)
	RETURNS @OutTable table
		(InvoiceID int, VendorID int, InvoiceNumber varchar(50),
			InvoiceDate date, InvoiceTotal money,
			PaymentTotal money, CreditTotal money
        )
BEGIN
	INSERT @OutTable
		SELECT InvoiceID, VendorID, InvoiceNumber, InvoiceDate,
			InvoiceTotal, PaymentTotal, CreditTotal
		FROM Invoices
		WHERE InvoiceTotal - CreditTotal - PaymentTotal > 0;
		WHILE (SELECT SUM(InvoiceTotal - CreditTotal
			- PaymentTotal)
				FROM @OutTable) >= @HowMuch
		UPDATE @OutTable
			SET CreditTotal = CreditTotal + .01
			WHERE InvoiceTotal - CreditTotal - PaymentTotal > 0;
	RETURN;
END;


--- Function Invocation of multi-valued Table Statement Func
SELECT VendorName, SUM(CreditTotal) AS CreditRequest
	FROM Vendors JOIN dbo.fnCreditAdj(25000) AS CreditTable
	ON Vendors.VendorID = CreditTable.VendorID
	GROUP BY VendorName;

Popularity 2/10 Helpfulness 1/10 Language sql

Source: Grepper

Tags: function sql

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Contributed on Nov 17 2023

Nice Narwhal

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