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Joins in database are used to combine rows from two or more tables based on a related column between them.
Joins are used to retrieve data from multiple tables based on a related column.
Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN.
Example: SELECT * FROM table1 INNER JOIN table2 ON table1.column = table2.column;
Datatypes are classifications of data items that determine the kind of operations that can be performed on them.
Datatypes specify the type of data that a variable can hold, such as integers, strings, or booleans.
Examples of datatypes include int, float, string, boolean, array, and object.
Different programming languages have different datatypes and rules for defining and using them.
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I applied via Approached by Company and was interviewed before Aug 2022. There were 3 interview rounds.
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I was interviewed before May 2016.
I applied via Recruitment Consultant and was interviewed before Oct 2020. There were 3 interview rounds.
Program to print the Fibonacci series up to a given number.
Take input from user for the limit of the series.
Initialize two variables with 0 and 1 respectively.
Use a loop to generate the series and print each number.
Add the previous two numbers to get the next number in the series.
posted on 13 Jan 2021
I applied via Referral and was interviewed before Jan 2020. There was 1 interview round.
We are using a variety of technologies, including some of the latest ones.
We are using React for our front-end development.
We are also using Node.js for our back-end development.
We are using Docker for containerization.
We are using Kubernetes for orchestration.
We are using AWS for cloud hosting.
We are constantly evaluating new technologies to see if they can improve our development process.
It depends on the specific requirements and constraints of the project.
Consider the project's goals and objectives
Evaluate the available technologies and their capabilities
Assess the project's budget and timeline
Consult with stakeholders and experts in the field
Examples: React vs Angular, MySQL vs MongoDB, Java vs Python
I applied via LinkedIn and was interviewed in Jun 2024. There was 1 interview round.
I use print statements, logging, and debugging tools to identify and fix issues in my code.
I start by reviewing the code and understanding the logic behind it.
I use print statements to check the values of variables at different points in the code.
I utilize logging to track the flow of the program and identify any errors.
I use debugging tools like breakpoints and step-through debugging to pinpoint the exact location of ...
Identify bottlenecks, analyze code, optimize algorithms, utilize caching, and consider hardware upgrades.
Identify bottlenecks in the application by profiling and monitoring performance.
Analyze the code to find inefficient algorithms or database queries.
Optimize algorithms and data structures to improve efficiency.
Utilize caching mechanisms to reduce redundant computations.
Consider hardware upgrades such as increasing m
Functional programming focuses on functions and immutability, while object-oriented programming focuses on objects and encapsulation.
Functional programming uses pure functions that do not have side effects.
Object-oriented programming uses objects that encapsulate data and behavior.
In functional programming, data is immutable and functions are first-class citizens.
In object-oriented programming, objects can have state a...
I applied via Walk-in and was interviewed in Jun 2024. There was 1 interview round.
Function to find the first non-repeating character in a string
Create a hashmap to store character frequencies
Iterate through the string to populate the hashmap
Iterate through the string again to find the first non-repeating character
A stack is a data structure that follows the Last In First Out (LIFO) principle, while a queue follows the First In First Out (FIFO) principle.
Stack: Last In First Out (LIFO), used for function calls, undo operations.
Queue: First In First Out (FIFO), used for printing tasks, message queues.
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