CREATE TABLE [dbo].[ANIMAL](
	[ID_ANIMAL] [int] IDENTITY(1,1) NOT NULL,
	[NAME] [nvarchar](50) NOT NULL,
 CONSTRAINT [PK_ANIMAL] PRIMARY KEY CLUSTERED 
(
	[ID_ANIMAL] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY]
GO

CREATE TABLE [dbo].[DOG](
	[ID_DOG] [int] NOT NULL,
	[DOG_SPEC_PROP1] [nvarchar](50) NOT NULL,
	[DOG_SPEC_PROP2] [nvarchar](50) NOT NULL,
 CONSTRAINT [PK_DOG] PRIMARY KEY CLUSTERED 
(
	[ID_DOG] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY]
GO

CREATE TABLE [dbo].[CAT](
	[ID_CAT] [int] NOT NULL,
	[CAT_SPEC_PROP_1] [nvarchar](50) NULL,
	[CAT_SPEC_PROP_2] [nvarchar](50) NULL,
 CONSTRAINT [PK_CAT] PRIMARY KEY CLUSTERED 
(
	[ID_CAT] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY]
GO

ALTER TABLE [dbo].[CAT]  WITH CHECK ADD  CONSTRAINT [FK_CAT_ANIMAL] FOREIGN KEY([ID_CAT])
REFERENCES [dbo].[ANIMAL] ([ID_ANIMAL])
ON DELETE CASCADE
GO
ALTER TABLE [dbo].[CAT] CHECK CONSTRAINT [FK_CAT_ANIMAL]
GO

ALTER TABLE [dbo].[DOG]  WITH CHECK ADD  CONSTRAINT [FK_DOG_ANIMAL] FOREIGN KEY([ID_DOG])
REFERENCES [dbo].[ANIMAL] ([ID_ANIMAL])
ON DELETE CASCADE
GO
ALTER TABLE [dbo].[DOG] CHECK CONSTRAINT [FK_DOG_ANIMAL]
GO