Where is like in MongoDB?

Where is like in MongoDB?

You can use the following methods to perform a query in MongoDB with “like” regex:

  1. Method 1: Find Documents that Contain String db.collection.find({name: {$regex : /string/i}})
  2. Method 2: Find Documents that Start with String db.collection.find({name: {$regex : /^string/i}})

How do I match a string in MongoDB?

In MongoDB, the following are available for use with regular expression:

  1. i: To match both lower case and upper case pattern in the string.
  2. m: To include ^ and $ in the pattern in the match i.e. to specifically search for ^ and $ inside the string.
  3. x: To ignore all white space characters in the $regex pattern.

What is the like equivalent in MongoDB?

We can implement the functionality of the like query in Mongo DB by using the find() function in the format – db. collection. find(). We can specify the string, regex, or regular expression for matching the values in the parameters of the find() function.

How do I find duplicates in MongoDB compass?

You can find duplicate values within your MongoDB database using the aggregate method along with the $group and $match aggregation pipeline operators. For a closer look at MongoDB’s aggregation pipeline operators see the article Aggregations in MongoDB by Example.

Is MongoDB like SQL?

SQL databases are used to store structured data while NoSQL databases like MongoDB are used to save unstructured data. MongoDB is used to save unstructured data in JSON format. MongoDB does not support advanced analytics and joins like SQL databases support.

How aggregation is performed in MongoDB?

In MongoDB, aggregation operations process the data records/documents and return computed results. It collects values from various documents and groups them together and then performs different types of operations on that grouped data like sum, average, minimum, maximum, etc to return a computed result.

How do I query data in MongoDB?

Adding and Querying the data in MongoDB

  1. Step 1: Create Collection. Syntax: use collection_name.
  2. Querying the data in MongoDB: The query operation performs using db.collection.find() method in MongoDB.
  3. Syntax: db.collection_name.find({})
  4. Syntax: db.collection_name.find({ : .

How does MongoDB prevent duplicate data?

To insert records in MongoDB and avoid duplicates, use “unique:true”.

Can MongoDB replace SQL Server?

An example of a Relational Database is SQL Server and a Non-Relational Database is MongoDB. We will be discussing the key differences between MongoDB vs SQL Server in this blog….MongoDB vs SQL Server: Key Differences.

Base of Comparison MongoDB SQL Server
Data Schema Dynamic Schema Fixed Schema