Database Reference
In-Depth Information
and bolts sections, you'll see the semantics of query operators presented in detail. The
chapter ends with an explanation of the map-reduce and grouping functions.
In presenting MongoDB's update and delete operations, chapter 6 brings us full
circle by showing the rationale for the e-commerce data model. You'll learn how to
maintain the category hierarchy and how to manage inventory transactionally. In
addition, the update operators will be covered in detail along with the powerful
find-
AndModify
command.
