![Trending Articles on Technical and Non Technical topics](/images/trending_categories.jpeg)
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
Find a value in lowercase from a MongoDB collection with documents
To find a value in lowercase, use the toLowerCase() method in MongoDB. Use the method in find() to find the value in lowercase.
Let us create a collection with documents −
> db.demo172.insertOne({"SubjectName":"MySQL"}); { "acknowledged" : true, "insertedId" : ObjectId("5e3838ce9e4f06af551997e1") } > db.demo172.insertOne({"SubjectName":"mongodb"}); { "acknowledged" : true, "insertedId" : ObjectId("5e3838d69e4f06af551997e2") } > db.demo172.insertOne({"SubjectName":"MongoDB"}); { "acknowledged" : true, "insertedId" : ObjectId("5e3838db9e4f06af551997e3") }
Display all documents from a collection with the help of find() method −
> db.demo172.find();
This will produce the following output −
{ "_id" : ObjectId("5e3838ce9e4f06af551997e1"), "SubjectName" : "MySQL" } { "_id" : ObjectId("5e3838d69e4f06af551997e2"), "SubjectName" : "mongodb" } { "_id" : ObjectId("5e3838db9e4f06af551997e3"), "SubjectName" : "MongoDB" }
Following is the query to find a value in lowercase −
> db.demo172.find({"SubjectName":"MONGODB".toLowerCase()});
This will produce the following output −
{ "_id" : ObjectId("5e3838d69e4f06af551997e2"), "SubjectName" : "mongodb" }
Advertisements