restructure seed

DataLayer/scripts/03-crud/04-Location/USP_CreateCountry.sql

@@ -0,0 +1,22 @@
+CREATE OR ALTER PROCEDURE dbo.USP_CreateCountry
+(
+    @CountryName NVARCHAR(100),
+    @ISO3616_1 NVARCHAR(2)
+)
+AS
+BEGIN
+    SET NOCOUNT ON;
+    SET XACT_ABORT ON;
+
+    IF EXISTS (
+        SELECT 1
+        FROM dbo.Country
+        WHERE ISO3616_1 = @ISO3616_1
+    )
+        RETURN;
+
+    INSERT INTO dbo.Country
+        (CountryName, ISO3616_1)
+    VALUES
+        (@CountryName, @ISO3616_1);
+END;