ÿþSET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO CREATE TABLE [dbo].[sub_class_a]( [id] [bigint] IDENTITY(1,1) NOT NULL, [column_a] [tinyint] NOT NULL, CONSTRAINT [PK_sub_class_a] PRIMARY KEY CLUSTERED ( [id] 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].[sub_class_b]( [id] [bigint] IDENTITY(1000000,1) NOT NULL, [column_b] [tinyint] NOT NULL, CONSTRAINT [PK_sub_class_b] PRIMARY KEY CLUSTERED ( [id] 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].[sub_class_c]( [id] [bigint] IDENTITY(2000000,1) NOT NULL, [column_c] [tinyint] NOT NULL, CONSTRAINT [PK_sub_class_c] PRIMARY KEY CLUSTERED ( [id] 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