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Nishtha Thakur has Published 498 Articles

Nishtha Thakur
469 Views
To understand the query with an or condition, let us create a collection with the document. The query to create a collection with a document is as follows −> db.orConditionDemo.insertOne({"CustomerName":"Larry", "ShippingDate":new ISODate("2018-01-29")}); { "acknowledged" : true, "insertedId" : ObjectId("5c8ec5262f684a30fbdfd56a") } > db.orConditionDemo.insertOne({"CustomerName":"Mike", "ShippingDate":new ISODate("2019-04-13")}); { "acknowledged" : ... Read More

Nishtha Thakur
2K+ Views
This is a C++ program to implement Modular Exponentiation Algorithm.AlgorithmBegin function modular(): // Arguments: base, exp, mod. // Body of the function: initialize res = 1 while (exp > 0) if (exp mod 2 == 1) ... Read More

Nishtha Thakur
2K+ Views
This example demonstrate about How to use split () in Android textview.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml. ... Read More

Nishtha Thakur
137 Views
This example demonstrates How to remove data from tree set in AndroidStep 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml. ... Read More

Nishtha Thakur
1K+ Views
You can use distinct() to return only unique values. The syntax is as follows −db.yourCollectionName.distinct("yourFieldName");To understand the concept, let us create a collection with the document. The query to create a collection with a document is as follows −> db.returnOnlyUniqueValuesDemo.insertOne({"CusomerName":"Larry", "CustomerAge":23}); { "acknowledged" : true, "insertedId" : ObjectId("5c8ed7262f684a30fbdfd580") ... Read More

Nishtha Thakur
1K+ Views
This example demonstrate about How to use toLowerCase () in Android textview.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml. ... Read More

Nishtha Thakur
219 Views
You can use the $exists and $ne operator for this. To understand the concept further, let us create a collection with document. The query to create a collection with document is as follows −> db.checkFieldExistDemo.insertOne({"EmployeeId":1, "EmployeeName":"John", "isMarried":true, "EmployeeSalary":4648585}); { "acknowledged" : true, "insertedId" : ObjectId("5c76f7b31e9c5dd6f1f78281") } > db.checkFieldExistDemo.insertOne({"StudentId":2, ... Read More

Nishtha Thakur
5K+ Views
To get sum the value of a key across all documents in a MongoDB collection, you can use aggregate().To understand the above concept, let us create a collection with the document. The query to create a collection with a document is as follows −> db.sumOfValueDemo.insertOne({"Name":"Larry", "Amount":14.50}); { "acknowledged" : ... Read More

Nishtha Thakur
225 Views
A Hamiltonian cycle is a Hamiltonian Path such that there is an edge (in graph) from the last vertex to the first vertex of the Hamiltonian Path. It is in an undirected graph is a path that visits each vertex of the graph exactly once.Functions and purposesBegin 1. function ... Read More

Nishtha Thakur
367 Views
In order to display the indexes of a collection, you can use getIndexes(). The syntax is as follows −db.yourCollectionName.getIndexes();To understand the concept, let us create a collection with the document. The query to create a collection with a document is as follows −> db.indexDemo.insertOne({"StudentName":"Larry", "StudentAge":21}); { "acknowledged" : true, ... Read More