Tech Library For Developers
In this tutorial, we will learn How to rename a MongoDB database. However, there is no such direct method available just like MySQL to rename the existing database but there is always a second way to do so and we complete using some specific Steps that we will learn below. Rename The Database In MongoDB … Read more
Here We will discuss How can I list all collections in the MongoDB shell where there are two ways to get the important list of all the collections in the MongoDB Shell and the are get collections and show collections. Let’s understand all of them one by one. Collections are document or group of documents … Read more
In This tutorial, we will see Query For Documents Where Array Size Is Greater Than 1 which we can do in two ways first with the use of not equal to Operator and other by MongoDB quarry for array grater there 0, 1, and 2. Let’s see both the method one by one and understand … Read more
In this tutorial, we will learn How to Drop A MongoDB Database From The Command Line to do so we can directly use the drop command to delete the whole database. Drop A MongoDB Database Drop a database means deleting a database permanently from a well defined database. And to drop permanently by a single … Read more
In this Tutorial, we will learn How to query MongoDB with “like” which is used for finding the match for a string or a substring that might be present in a full string which could be there. To Query MongoDB With “like” We use like statements to find a match in between a substring or … Read more
Here we are going to discuss How Do I Parse A String To A Float Or Int in Python we can do this using float() and int() to convert one data type into different data types for our requirements that we will see as examples here. Parse String to Float To convert a Strind data … Read more
Here we will discuss How To Print Odd And Even Numbers Using Different Classes In Java Programs where we can use one class to find all odd the elements in one class and the rest of all will be even so print the rest of all at different places which will be called as even. … Read more
Here we will discuss Why We Use Nested Classes In Java? where the nested class is used for increasing the encapsulation and increase the readability of code or program. And as we know that to declare the class as static we need to have the class as a nested class. Nested Class Nested classes … Read more
In this tutorial, we will discuss How Can I Increment A Date By One Day In Java, we can do so using three different ways like pulsday(), add(), and jodaTime(). Ways To Increment The Date There are three different ways to increment the date by one and here we will discuss them one by one. … Read more
Here we will learn how To Test Multiple Variables For Equality Against A Single Value. as we can follow multiple ways to do so like conditional operators like if- else or switch case can be used for the same if the thing is to simply check for equality. Checking Of Multiple Variables With A Variable … Read more
