Move from the hand.

Shogi.Database/Session/Stored Procedures/CreateMove.sql

@@ -1,8 +1,8 @@
 CREATE PROCEDURE [session].[CreateMove]
 	@To					VARCHAR(2),
-	@From				VARCHAR(2),
-	@IsPromotion		BIT,
-	@PieceFromHand		NVARCHAR(13),
+	@From				VARCHAR(2) = NULL,
+	@IsPromotion		BIT = 0,
+	@PieceFromHand		NVARCHAR(13) = NULL,
 	@SessionName		[session].[SessionName]
 AS
 
@@ -19,7 +19,7 @@ BEGIN
 		WHERE [Name] = @SessionName;
 
 		DECLARE @PieceIdFromhand INT = NULL;
-		SELECT @PieceIdFromhand
+		SELECT @PieceIdFromhand = Id
 		FROM [session].[Piece]
 		WHERE [Name] = @PieceFromHand;