Queries in MongoDB
MongoDB
MongoDB: How to Use the OR ($or) Operator in Queries
You can use the $or operator in MongoDB to query for documents that meet one of multiple criteria.
This operator uses the following basic syntax:
db.myCollection.find({
...
MongoDB
MongoDB: How to Use the AND ($and) Operator in Queries
You can use the $and operator in MongoDB to query for documents that meet multiple criteria.
This operator uses the following basic syntax:
db.myCollection.find({
"$and":...
MongoDB
MongoDB: How to Use a “NOT IN” Query
You can use the following syntax to query for all documents where the value for a particular field is not in a certain list...
MongoDB
MongoDB: How to Find Document By id
You can use the following basic syntax to find a document by id in MongoDB:
db.collection.find(ObjectId('619527e467d6742f66749b72'))
The following examples show how to use this syntax with...
MongoDB
MongoDB: How to Query for “not null” in Specific Field
You can use the following syntax to query for all documents where a specific field is not null in MongoDB:
db.collection.find({"field_name":{$ne:null}})
The following examples show...
MongoDB
MongoDB: How to Query with a Date Range
You can use the following basic syntax to perform a query with a date range in MongoDB:
db.collection.find({
day: {
...
MongoDB
MongoDB: How to Query with “Like” Regex
You can use the following methods to perform a query in MongoDB with “like” regex:
Method 1: Find Documents that Contain String
db.collection.find({name: {$regex : /string/i}})
Note...
Subscribe
- Never miss a story with notifications
- Gain full access to our premium content
- Browse free from up to 5 devices at once
Must read