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
MongoDB query to find a value from JSON like data?
To fund a value from JSON data, use the find() along with dot(.) notation. Let us first create a collection with documents −
> db.findValueFromJsonDemo.insertOne(
{
"UserDetails": [{
"_id": new ObjectId(),
"UserName": "Carol",
"UserMessage": "Hi"
}],
"UserFriendsName": ["John","Sam"]
}
);
{
"acknowledged" : true,
"insertedId" : ObjectId("5cdf8a4cbf3115999ed511fd")
}Following is the query to display all documents from a collection with the help of find() method −
> db.findValueFromJsonDemo.find().pretty();
This will produce the following output −
{
"_id" : ObjectId("5cdf8a4cbf3115999ed511fd"),
"UserDetails" : [
{
"_id" : ObjectId("5cdf8a4cbf3115999ed511fc"),
"UserName" : "Carol",
"UserMessage" : "Hi"
}
],
"UserFriendsName" : [
"John",
"Sam"
]
}Following is the query to find a value from json data −
> db.findValueFromJsonDemo.find({'UserDetails.UserMessage': "Hi"});This will produce the following output −
{
"_id" : ObjectId("5cdf8a4cbf3115999ed511fd"),
"UserDetails" : [
{
"_id" : ObjectId("5cdf8a4cbf3115999ed511fc"), "UserName" : "Carol", "UserMessage" : "Hi"
}
],
"UserFriendsName" : [
"John", "Sam"
]
}
Updated on: 30-Jul-2019
4K+ Views
Advertisements