MongoDB
MongoDB : Insert one single document to a collection
For inserting one document to a collection in MongoDB, we can use insertOne() method. It has the following syntax :.
ReadInsert multiple documents to a MongoDB collection using insertMany
insertMany() was introduced in MongoDB version 3.2. Using this method, we can insert multiple documents to a collection easily. It has the below syntax :.
ReadHow to drop a collection in MongoDB
Dropping a collection will remove it from the database. It will also remove any index associated with the dropped collection. It also removes all indexes associated with the dropped collection. This method will obtain a write lock on the database. It will block all other operations till the drop is completed.
ReadHow to check the type of a field in Mongo shell
We can check the type of a field using Mongo shell. In this quick tutorial, I will show you how to do that.MongoDB provides two different operators for type checking. MongoDB provides two different operators for type checking- instanceof and typeof. Using these operators, we can either check if a field is of a certain type or we can check the type of a field. Let me show with two examples to make this more clear.
ReadHow to create a simple and capped collection in MongoDB
Collections are used to group MongoDB documents. If you are familier with RDBMS, you can think it like a table. Collections are created within a database. Again, documents are created within collection. These documents contains different different fields with different data.In this tutorial, we will show you how to create a collection with different ways to create different types of collection.
ReadMongoDB tutorial : How to drop a database in MongoDB
Drop a database means deleting a database. If you drop a database, it will remove everything inside it.In this tutorial, we will show you how to drop a database in MongoDB.
ReadHow to create a database in MongoDB and insert data
Database is used in MongoDB to store all different types of collections and each collection stores documents. We will come to this later, but before that let's learn how to create a database and how to move between databases.
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