MongoDB Array Query Operators Example

Date: 2018-02-16

This tutorial demonstrates MongoDB's array query operators: $all, $elemMatch, and $size. $all retrieves documents where an array field contains all specified values. $elemMatch finds documents with at least one array element matching given criteria. $size returns documents with arrays of a specific length. Examples using these operators on a sample inventory collection are provided, showing how to query for documents based on array contents and sizes. The tutorial also covers using the pretty() method for structured output.

Read more: https://examples.javacodegeeks.com/software-development/mongodb/mongodb-array-query-operators-example/