28 lines
745 B
SQL
28 lines
745 B
SQL
CREATE TABLE [session].[Move]
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(
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[Id] INT NOT NULL PRIMARY KEY IDENTITY,
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[SessionId] BIGINT NOT NULL,
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[To] VARCHAR(2) NOT NULL,
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[From] VARCHAR(2) NULL,
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[PieceIdFromHand] INT NULL,
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[IsPromotion] BIT DEFAULT 0
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CONSTRAINT [Cannot end where you start]
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CHECK ([From] <> [To]),
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CONSTRAINT [Move cannot start from two places]
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CHECK (
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( [From] IS NOT NULL AND [PieceIdFromHand] IS NULL )
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OR
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( [From] IS NULL AND [PieceIdFromhand] IS NOT NULL )
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),
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CONSTRAINT FK_Move_Session FOREIGN KEY (SessionId) REFERENCES [session].[Session] (Id)
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ON DELETE CASCADE
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ON UPDATE CASCADE,
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CONSTRAINT FK_Move_Piece FOREIGN KEY (PieceIdFromHand) REFERENCES [session].[Piece] (Id)
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ON DELETE NO ACTION
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ON UPDATE NO ACTION
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)
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