是否可以使用与外键连接的表中的数据更新行？

Question

I have a table [Book] in a database that has a [AuthorId] and [Description] columns. The other table [Author] is related to the [Book] via foreign key [Book].[AuthorId] -> [Author].[ID] .

I'd like to update the [Book].[Description] column with the text "Nice book from #Author#" , where #Author# is the name of the author taken from the [Author].[Name] .

Something like this:

UPDATE [Book] SET [Description] = 'Nice book from ' + [Author].[Name]

but the problem is that I don't know if there is a way to join the author and the book from within the UPDATE statement, so that each updated row will know it's author's name.

Is this possible in a single SQL query?

Answer 1

update Book 
  set Description = 'Nice book from '+Author.Name
from Author
where Book.AuthorID = Author.AuthorID

Answer 2

UPDATE [Book] SET [Description] = 'Nice book from ' + [Book].[Name]
FROM [Book], [Author] 
Where [Book].AuthorId = [Author].Id