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Right join and left join are types of joins used in SQL to combine rows from two or more tables based on a related column between them.
Left join returns all rows from the left table and the matched rows from the right table, with null values where there is no match.
Right join returns all rows from the right table and the matched rows from the left table, with null values where there is no match.
Example: SELECT * FROM t...
An index is a data structure that improves the speed of data retrieval operations in a database.
Types of indexes include clustered, non-clustered, unique, and composite indexes.
Indexes can be created on one or multiple columns in a table.
Examples of indexes are primary keys, foreign keys, and indexes created for frequently searched columns.
Top trending discussions
React has three main phases in its lifecycle: mounting, updating, and unmounting.
Mounting: when a component is created and inserted into the DOM
Updating: when a component is updated due to changes in props or state
Unmounting: when a component is removed from the DOM
Lifecycle methods can be used to perform actions at each phase, such as componentDidMount() or componentWillUnmount()
React also has error handling methods,
Strict mode is a way to write secure and optimized JavaScript code.
Enables catching of silent errors
Disallows duplicate property names or parameters
Prevents use of undeclared variables
Makes `eval()` safer to use
Throws errors on invalid usage of `this` keyword
CURD operations along with implementation of a mock UI
I appeared for an interview in Jul 2024.
Create an API using Notepad to check if a string is a palindrome or not.
I applied via Naukri.com and was interviewed before Jan 2023. There were 3 interview rounds.
I applied via Campus Placement and was interviewed in Mar 2023. There were 4 interview rounds.
Aptitude Test with 1 coding question and 8 other aptitude questions
posted on 6 Jun 2023
I applied via Referral and was interviewed before Jun 2022. There were 2 interview rounds.
Cloud technologies offer different services like IaaS, PaaS, and SaaS for varying levels of control and management.
IaaS (Infrastructure as a Service) provides virtualized computing resources over the internet, such as virtual servers and storage.
PaaS (Platform as a Service) offers a platform allowing customers to develop, run, and manage applications without dealing with infrastructure.
SaaS (Software as a Service) deli...
posted on 24 Sep 2024
posted on 4 Mar 2025
I appeared for an interview before Mar 2024.
I'm a passionate software engineer with a strong background in full-stack development and a love for solving complex problems.
Education: Bachelor's degree in Computer Science from XYZ University.
Experience: 3 years of experience in developing web applications using React and Node.js.
Projects: Developed an e-commerce platform that increased sales by 30% within the first quarter.
Skills: Proficient in JavaScript, Python, ...
I hold a Bachelor's degree in Computer Engineering and developed a web-based project for managing student records.
Bachelor's degree in Computer Engineering from XYZ University.
Completed a capstone project on a web application for student record management.
Utilized technologies like HTML, CSS, JavaScript, and Node.js.
Implemented features such as user authentication, data visualization, and a responsive design.
Collaborat...
This company aligns with my values, offers growth opportunities, and fosters innovation, making it an ideal environment for my skills.
The company's commitment to innovation resonates with my passion for developing cutting-edge software solutions.
I admire the collaborative culture here, which I experienced during my interactions with the team during the interview process.
The emphasis on professional development and cont...
posted on 29 Feb 2024
I applied via Company Website and was interviewed before Feb 2023. There were 3 interview rounds.
Discussion about OOPS concepts and String related program
Program on Recursion and Array
based on 1 interview
Interview experience
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