[tblMainCheckPoint](
    [Id] [int] IDENTITY(1,1) NOT NULL,
    [CheckPointName] [nchar](100) NULL,
    [CheckPointDescription] [nchar](1000) NULL
)

[dbo].[tblSubCheckPoint](
    [SubCheckPointId] [int] IDENTITY(1,1) NOT NULL,
    [MainCheckPointId] [int] NOT NULL,
    [SubCheckPointName] [nchar](500) NULL
) ON [PRIMARY]