Initial commit

sqlscripts/functions/function-does_barcode_exist.sql

@@ -0,0 +1,19 @@
+USE [Database]
+
+IF OBJECT_ID('[Functions].[does_barcode_exist]') IS NOT NULL
+  DROP FUNCTION [Functions].[does_barcode_exist];
+GO
+CREATE FUNCTION [Functions].[does_barcode_exist](
+  @barcode AS BIGINT
+)
+RETURNS BIT
+AS
+BEGIN
+	IF EXISTS(
+		SELECT *
+		FROM [Tables].[products]
+	    WHERE [barcode] = @barcode
+	)
+		RETURN CAST(1 AS BIT);
+	RETURN CAST(0 AS BIT);
+END