Delete Data from MongoDB
Overview
In this guide, you will delete data from MongoDB.
Time required: 10 minutes
What You'll Need
- A connection string to your MongoDB deployment.
- Sample datasets loaded into your cluster.
- An installed MongoDB Driver.
- Data inserted from the Insert Data into MongoDB guide.
Procedure
Connect to your MongoDB instance.
Get the database and collection.
Switch to the database and collection you wish to query. In
this case you will be using the sample_guides database and
comets collection.
Delete specific documents in the comets collection.
The following example illustrates using a query filter to delete
documents where their orbitalPeriod is greater than 5 and less
than 85.
Display your results.
The result contains some information about the delete
operation. To verify you deleted documents, print the amount of
documents the driver deleted.
Check your results.
Here is the complete code followed by sample output.
Summary
If you have completed this guide, you have deleted data from MongoDB.
That completes this introduction to CRUD operations in MongoDB.
See Also
See the following resources for more in-depth information about the concepts presented here:
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