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Cascading deletes using trigger


Posted Date: 18 Sep 2008    Resource Type: Code Snippets    Category: SQL
Posted By: mohammad arshad       Member Level: Silver
Rating:     Points: 5



here we wish to implement that whenever an item is deleted all the things related to it in the database also gets deleted.Here we have a list of items a shop stocks and sells, as well as a stock transaction table which contains a list of purchases and sales for each stock item 


CREATE TRIGGER stock_cascade_delete
ON Stock
FOR DELETE
AS
	DECLARE	@StockCodeToDelete int
	SELECT	@StockCodeToDelete = Stock_Code
	FROM	Deleted

	DELETE FROM Stock_Transactions
	WHERE  Stock_Code = @StockCodeToDelete



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