text: /*
  * module dependency: person 1.0
  * module dependency: book 1.0
  */
  GO
  
  CREATE TABLE dbo.BookComment
  (
  	Id INT NOT NULL IDENTITY(1, 1)
  	,ReaderId INT NOT NULL
  	,BookId INT NOT NULL
  	,Comment NVARCHAR(MAX) NOT NULL
  )
  
  ALTER TABLE dbo.BookComment ADD CONSTRAINT PK_dbo_BookComment PRIMARY KEY CLUSTERED (Id)
  GO
  
  ALTER TABLE dbo.BookComment ADD CONSTRAINT FK_Book_ReaderId FOREIGN KEY (ReaderId) REFERENCES dbo.Person (Id)
  GO
  
  ALTER TABLE dbo.BookComment ADD CONSTRAINT FK_Book_BookId FOREIGN KEY (BookId) REFERENCES dbo.Book (Id)
  GO