content_image/797289.jpg content_image/797290.jpg
{ _id: 1, name: "Grace H." } { _id : 2, "name" : "Ted R." } 

The while loop may iterate many times in collections with larger insert volumes. 

## 3.4 MongoDB CRUD Reference 

## 3.4.1 Query Cursor Methods 

<img src='content_image/797289.jpg'>

## 3.4.2 Query and Data Manipulation Collection Methods 

<img src='content_image/797290.jpg'>

## 3.4.3 MongoDB CRUD Reference Documentation 

Write Concern Reference (page 130) Configuration options associated with the guarantee MongoDB provides when reporting on the success of a write operation. 

SQL to MongoDB Mapping Chart (page 131) An overview of common database operations showing both the Mon- goDB operations and SQL statements. 

The bios Example Collection (page 137) Sample data for experimenting with MongoDB. insert() , update() and find() pages use the data for some of their examples. 

