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Author Archives: Yatin

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An experience full-stack engineer well versed with Core Java, Spring/Springboot, MVC, Security, AOP, Frontend (Angular & React), and cloud technologies (such as AWS, GCP, Jenkins, Docker, K8).

Spring Boot @Scheduled Annotation Example

Hello. In this tutorial, we will explain the Scheduled annotation in a spring boot application. 1. Introduction @Scheduled annotation in spring boot allows to schedule jobs in the applications. This annotation internally uses the task scheduler interface for scheduling the annotated methods for execution. To set up the spring boot scheduler we need to understand the following – @EnableScheduling – ...

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DB Integration Tests with Spring Boot and Testcontainers

Hello. In this tutorial, we will explore the Testcontainers to perform integration tests for the jpa repositories in a Spring Boot app. You can also check this tutorial in the following video: Spring Boot and Testcontainers – Video 1. Introduction Testcontainers is a library that provides a clean way for writing the integration and end-to-end tests for the jpa repositories. ...

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What is AWS CloudFormation?

Welcome, in this tutorial, we will explain the theoretical background of the AWS Cloudformation and its related terminology. 1. Introduction to AWS Cloudformation Amazon Cloudformation is a service responsible to create AWS resources and provision them in a well-ordered fashion. It is known as infrastructure as a codeIt is different from Elastic Beanstalk as the latter is focused on deploying ...

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Variables in Python

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Hello in this tutorial, we will explain variables in python programming. 1. Introduction Variable is a name that refers to a location in the memory. It is also known as an identifier that contains a value. In python, it is not important.to specify the variable type as python is an infer language and is smart enough to under the data ...

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Python Try Except Example

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Hello in this tutorial, we will explain how to use the Try Except block in Python programming. 1. Introduction The try-except block in python is used to handle exceptions in python code. It is represented by the following syntax: try: # Some Code except: # Executed if an error in the # try block else: # execute if no exception ...

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SQL Self Join

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Hello. In this tutorial, we will learn the SQL SELF JOIN (represented by the inner join keyword). 1. Introduction SQL stands for Structured Query Language and is used to extract and organize data stored in relational databases like MySQL, PostgreSQL, Oracle, etc. A relational database consists of rows and columns that allow fetching specific information from databases that can be ...

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SQL FULL JOIN Statement

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Hello. In this tutorial, we will learn the SQL FULL JOIN keyword. 1. Introduction SQL stands for Structured Query Language and is used to extract and organize data stored in relational databases like MySQL, PostgreSQL, Oracle, etc. A relational database consists of rows and columns that allow fetching specific information from databases that can be used later for analysis. In ...

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SQL RIGHT JOIN Keyword

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Hello. In this tutorial, we will learn the SQL RIGHT JOIN keyword. 1. Introduction SQL stands for Structured Query Language and is used to extract and organize data stored in relational databases like MySQL, PostgreSQL, Oracle, etc. A relational database consists of rows and columns that allow fetching specific information from databases that can be used later for analysis. In ...

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SQL LEFT JOIN Keyword

Bipartite Graph

Hello. In this tutorial, we will learn the SQL LEFT JOIN keyword. 1. Introduction SQL stands for Structured Query Language and is used to extract and organize data stored in relational databases like MySQL, PostgreSQL, Oracle, etc. A relational database consists of rows and columns that allow fetching specific information from databases that can be used later for analysis. In ...

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Python Array Example

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Hello in this tutorial, we will see how to use arrays in python programming. 1. Introduction Array module in python is used to create an array with constraints on the data types. In this tutorial, we will focus on this module to store a collection of integer values and play around with it. 1.1 Setting up Python If someone needs ...

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