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Friday, March 14, 2025

MongoDB

MongoDB: How to Remove a Field from Every Document

You can use the following methods to remove fields from every document in a collection in MongoDB: Method 1: Remove One Field db.collection.updateMany({}, {$unset: {"field1":1}}) Method 2:...

MongoDB: How to Add a New Field in a Collection

You can use the following methods to add a new field to every document in a collection in MongoDB: Method 1: Add New Field Without...

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: How to Check if Field Contains a String

You can use the following syntax in MongoDB to check if a certain field contains a specific string: db.collection.findOne({name: {$regex : /string/}}) The following examples show...

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...

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