create, read, playercount

Shogi.Database/Session/Tables/Move.sql

@@ -0,0 +1,20 @@
+CREATE TABLE [session].[Move]
+(
+	[Id]			INT NOT NULL PRIMARY KEY IDENTITY,
+	[SessionId]		BIGINT NOT NULL,
+	[From]			VARCHAR(2) NOT NULL,
+	[To]			VARCHAR(2) NOT NULL,
+	[IsPromotion]	BIT NOT NULL,
+	[PieceIdFromHand] INT NULL
+
+	CONSTRAINT [Cannot end where you start]
+		CHECK ([From] <> [To]),
+
+	CONSTRAINT FK_Move_Session FOREIGN KEY (SessionId) REFERENCES [session].[Session] (Id)
+		ON DELETE CASCADE
+		ON UPDATE CASCADE,
+
+	CONSTRAINT FK_Move_Piece FOREIGN KEY (PieceIdFromHand) REFERENCES [session].[Piece] (Id)
+		ON DELETE NO ACTION
+		ON UPDATE NO ACTION
+)

Shogi.Database/Session/Tables/Piece.sql

@@ -0,0 +1,5 @@
+CREATE TABLE [session].[Piece]
+(
+	[Id] INT NOT NULL PRIMARY KEY IDENTITY,
+	[Name] NVARCHAR(13) NOT NULL UNIQUE
+)

Shogi.Database/Session/Tables/Session.sql

@@ -4,13 +4,12 @@
 	[Name]		[session].[SessionName] UNIQUE,
 	Player1Id	BIGINT NOT NULL,
 	Player2Id	BIGINT NULL,
-	BoardState	[session].[JsonDocument] NOT NULL,
 	Created		DATETIMEOFFSET NOT NULL DEFAULT SYSDATETIMEOFFSET(),
 
-	CONSTRAINT [BoardState must be json] CHECK (isjson(BoardState)=1),
 	CONSTRAINT FK_Player1_User FOREIGN KEY (Player1Id) REFERENCES [user].[User] (Id)
 		ON DELETE CASCADE
 		ON UPDATE CASCADE,
+
 	CONSTRAINT FK_Player2_User FOREIGN KEY (Player2Id) REFERENCES [user].[User] (Id)
 		ON DELETE NO ACTION
 		ON UPDATE NO ACTION