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Read more about the article Using the $lookup Stage in MongoDB’s Aggregation Framework
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Database / MongoDB / Tech

Using the $lookup Stage in MongoDB’s Aggregation Framework

The $lookup stage in MongoDB's aggregation framework allows you to perform a left outer join to a collection in the same database. This stage is useful for combining documents from…

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22nd June 2024
Read more about the article How to Update Multiple Array Elements in mongodb
Database / MongoDB

How to Update Multiple Array Elements in mongodb

Suppose we have collection of documents having array and we want to update document having array on the basis of some condition. Insert document in movies collection db.movies.insertMany([ { title:…

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23rd January 2023
Read more about the article mongo.exe not installed in Version 6.0.0+ | mongo not a recognize an internal or external command
Database / MongoDB

mongo.exe not installed in Version 6.0.0+ | mongo not a recognize an internal or external command

The legacy mongo shell is no longer included in server packages as of MongoDB 6.0. mongo has been superseded by the new MongoDB Shell (mongosh) which is available separately: Download and Install mongosh The MongoDB Compass admin…

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16th January 2023
Read more about the article How to get random record from MongoDB
Database / MongoDB

How to get random record from MongoDB

Radom data is useful to test many scenarios and check our code stability in many ways. We can get random documents from given collection. Solution 1: Using $sample Randomly selects…

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26th December 2022
Read more about the article How to get the last N records in mongodb
Database / MongoDB

How to get the last N records in mongodb

We can use various approaches to get the last n record from database. Let find out which approach suits you. You can use combination of the  sort() , limit() ,skip() to get the…

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19th December 2022
Read more about the article Get distinct value from mongo DB
Database / MongoDB

Get distinct value from mongo DB

We have various ways to achieve the result. However, we will discuss here two methods. 1. Distinct db.collection.distinct(field, query, options) Finds the distinct values for a specified field across a…

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17th October 2022
Read more about the article Add createdAt and updatedAt in mongoose schema using timstamps | Mongoose Timestamp
Database / MongoDB / TipsnTricks

Add createdAt and updatedAt in mongoose schema using timstamps | Mongoose Timestamp

Mongoose schemas support a timestamps option. If you set timestamps: true, Mongoose will add two properties of type Date to your schema: createdAt: a date representing when this document was createdupdatedAt: a date representing when…

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13th June 2022
Read more about the article MongoDB query where array length is greater than ‘n’
Database / MongoDB / TipsnTricks

MongoDB query where array length is greater than ‘n’

While working on any project where we may have a requirement to check the size of an array or to get an element whose size is greater or less than…

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13th December 2021
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