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1 Answer
Anvi Jain

Let’s say you have saved the Login date of users. Now, you want the count of records for specific date only i.e. login date. For this, use $gte and $lt operator along with count(). Let us first create a collection with documents −

> db.findDataByDateDemo.insertOne({"UserName":"John","UserLoginDate":new ISODate("2019-01-31")});
{
   "acknowledged" : true,
   "insertedId" : ObjectId("5cdd8cd7bf3115999ed511ed")
}
> db.findDataByDateDemo.insertOne({"UserName":"Larry","UserLoginDate":new ISODate("2019-02-01")});
{
   "acknowledged" : true,
   "insertedId" : ObjectId("5cdd8ce7bf3115999ed511ee")
}
> db.findDataByDateDemo.insertOne({"UserName":"Sam","UserLoginDate":new ISODate("2019-05-02")});
{
   "acknowledged" : true,
   "insertedId" : ObjectId("5cdd8cf3bf3115999ed511ef")
}
> db.findDataByDateDemo.insertOne({"UserName":"David","UserLoginDate":new ISODate("2019-05-16")});
{
   "acknowledged" : true,
   "insertedId" : ObjectId("5cdd8d00bf3115999ed511f0")
}
> db.findDataByDateDemo.insertOne({"UserName":"Carol","UserLoginDate":new ISODate("2019-10-19")});
{
   "acknowledged" : true,
   "insertedId" : ObjectId("5cdd8d0ebf3115999ed511f1")
}

Following is the query to display all documents from a collection with the help of find() method −

> db.findDataByDateDemo.find();

This will produce the following output −

{ "_id" : ObjectId("5cdd8cd7bf3115999ed511ed"), "UserName" : "John", "UserLoginDate"  : ISODate("2019-01-31T00:00:00Z") }
{ "_id" : ObjectId("5cdd8ce7bf3115999ed511ee"), "UserName" : "Larry", "UserLoginDate" : ISODate("2019-02-01T00:00:00Z") }
{ "_id" : ObjectId("5cdd8cf3bf3115999ed511ef"), "UserName" : "Sam", "UserLoginDate"   : ISODate("2019-05-02T00:00:00Z") }
{ "_id" : ObjectId("5cdd8d00bf3115999ed511f0"), "UserName" : "David", "UserLoginDate" : ISODate("2019-05-16T00:00:00Z") }
{ "_id" : ObjectId("5cdd8d0ebf3115999ed511f1"), "UserName" : "Carol", "UserLoginDate" : ISODate("2019-10-19T00:00:00Z") }

Following is the query to find data for a specific date in MongoDB. Here, we are getting the users who logged in between specific dates −

> db.findDataByDateDemo.count({"UserLoginDate":{ "$gte": new Date("2019-05-02"), "$lt": new Date("2019-05-18") }});

This will produce the following output −

2

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