- Data Structure
- Networking
- RDBMS
- Operating System
- Java
- MS Excel
- iOS
- HTML
- CSS
- Android
- Python
- C Programming
- C++
- C#
- MongoDB
- MySQL
- Javascript
- PHP
- Physics
- Chemistry
- Biology
- Mathematics
- English
- Economics
- Psychology
- Social Studies
- Fashion Studies
- Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
How to find specific array elements in MongoDB document with query and filter with range?
For this, use aggregate() in MongoDB. Let us create a collection with documents −
> db.demo351.insertOne( ... { ... ... "_id" : "101", ... "ProductDetails" : [ ... { ... "ProductName" : "Product-1", ... "ProductPrice" :500 ... }, ... { ... "ProductName" : "Product-2", ... "ProductPrice" :400 ... } ... ] ... } ... ); { "acknowledged" : true, "insertedId" : "101" } > db.demo351.insertOne( ... { ... ... "_id" : "102", ... "ProductDetails" : [ ... { ... "ProductName" : "Product-3", ... "ProductPrice" :200 ... }, ... { ... "ProductName" : "Product-4", ... "ProductPrice" :800 ... } ... ] ... } ... ); { "acknowledged" : true, "insertedId" : "102" }
Display all documents from a collection with the help of find() method &mnus;
> db.demo351.find();
This will produce the following output −
{ "_id" : "101", "ProductDetails" : [ { "ProductName" : "Product-1", "ProductPrice" : 500 }, { "ProductName" : "Product-2", "ProductPrice" : 400 } ] } { "_id" : "102", "ProductDetails" : [ { "ProductName" : "Product-3", "ProductPrice" : 200 }, { "ProductName" : "Product-4", "ProductPrice" : 800 } ] }
Following is the query to find specific array elements in MongoDB document with query and filter with range −
> db.demo351.aggregate([ ... { ... $match: { _id: "102" } ... }, ... { ... $addFields: { ... ProductDetails: { ... $filter: { ... input: "$ProductDetails", ... cond: { ... $and: [ ... { $gt: [ "$$this.ProductPrice", 600 ] }, ... { $lt: [ "$$this.ProductPrice", 900 ] } ... ] ... } ... } ... } ... } ... } ... ])
This will produce the following output −
{ "_id" : "102", "ProductDetails" : [ { "ProductName" : "Product-4", "ProductPrice" : 800 } ] }
Advertisements