The Little Mongo DB Schema Design Book

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Contents Schema Basics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 One-To-One (1:1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 One-To-Many (1:N) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Many-To-Many (N:M) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Two Way Embedding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 One Way Embedding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Schema Basics Before exploring the more advanced schemas in this book it’s important to revisit schema basics. In this chapter we will explore the basic relationships from traditional relational databases and how they relate to the document model in MongoDB. We will start with a look at the One-To-One (1:1) relationship then moving on to the One-To-Many (1:N) and finally the Many-To-Many (N:M).
Page 2 and 3: The Little Mongo DB Schema Design B
Page 6 and 7: One-To-One (1:1) The 1:1 relationsh
Page 8 and 9: One-To-Many (1:N) The 1:N relations
Page 10 and 11: One-To-Many (1:N) 6 • The first i
Page 12 and 13: One-To-Many (1:N) 8 13 blog_entry_i
Page 14 and 15: Many-To-Many (N:M) 10 Some example
Page 16 and 17: Many-To-Many (N:M) 12 A Category do

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