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Overloading is when multiple methods have the same name but different parameters, while overriding is when a subclass provides a specific implementation for a method in the superclass.
Overloading involves multiple methods with the same name but different parameters
Overriding involves a subclass providing a specific implementation for a method in the superclass
Overloading is determined at compile time, while overri...
To find the 2nd maximum salary from the employee table
Order the salaries in descending order
Use LIMIT 1,1 to get the second highest salary
Swap two values without using a third variable in a program
Use bitwise XOR operation to swap two values without using a third variable
Example: int a = 5, b = 10; a = a ^ b; b = a ^ b; a = a ^ b; // Now a = 10, b = 5
Ensure the values are of the same data type for bitwise XOR operation to work correctly
The difference between two dates is calculated by subtracting the earlier date from the later date.
Subtract the earlier date from the later date to get the difference in days, months, or years.
Consider leap years and different month lengths when calculating the difference.
Use built-in functions or libraries in programming languages to easily calculate date differences.
Create a macro to list all file names in a specified folder and store them in a variable.
Use the 'FILENAME' statement to define the folder path.
Utilize the 'DOPEN' function to open the directory and 'DNUM' to count files.
Loop through the files using 'DREAD' to read each file name.
Store file names in an array or a macro variable for further processing.
Example: %let fileList = %sysfunc(dread(&dirID, &i));
A macro to list all file names in a specified folder into a dataset.
Use the FILENAME statement to define the folder path.
Utilize the DOPEN function to open the directory.
Loop through the files using DNUM and DREAD functions.
Store the file names in a dataset using a DATA step.
Example: 'data files; infile files; input filename $; run;'
Comparing different strings in an array of texts.
Iterate through the array and compare each string with the others.
Use a nested loop to compare each pair of strings.
Consider using a hash map to store the frequency of each unique string for efficient comparison.
JAVA is a high-level programming language used for developing applications and software.
Object-oriented programming language
Platform-independent
Used for web development, mobile apps, enterprise software
Has a large standard library
Supports multithreading and networking
Oracle in software refers to Oracle Corporation, a multinational computer technology corporation known for its database management systems.
Oracle is a leading provider of relational database management systems (RDBMS).
It offers a wide range of products and services for data management, cloud applications, and more.
Oracle databases are widely used in enterprise applications for storing and managing data efficiently...
Simple code to print 'Hello World'
Use a print statement to display 'Hello World'
In Python: print('Hello World')
In Java: System.out.println('Hello World')
I appeared for an interview in Jun 2025, where I was asked the following questions.
I appeared for an interview in Apr 2025, where I was asked the following questions.
Efficiently processing millions of records requires strategic batching and optimization techniques.
Use Batch Apex to process records in manageable chunks, leveraging the execute method to handle 50k records at a time.
Implement a Queueable Apex pattern to chain multiple jobs, allowing for asynchronous processing of large datasets.
Utilize Salesforce's Bulk API for handling large volumes of records, which can process up t...
I applied via Approached by Company and was interviewed in Dec 2024. There was 1 interview round.
I applied via Walk-in and was interviewed in Dec 2024. There was 1 interview round.
I am a data-driven professional with a background in analytics and a passion for problem-solving.
I have a degree in statistics and experience working with various data analysis tools.
I have successfully implemented data-driven strategies to improve business performance.
I am skilled in data visualization and communicating complex findings to stakeholders.
Managed a project to implement a predictive analytics model for a retail company.
Conducted data analysis to identify key variables for the model
Built and validated the predictive model using machine learning algorithms
Collaborated with IT team to integrate the model into the company's existing systems
Provided training to end users on how to interpret and use the model's predictions
I applied via LinkedIn and was interviewed in Oct 2024. There was 1 interview round.
Analytical thinker with a background in data analysis, passionate about leveraging insights to drive business decisions and improve processes.
Educational Background: Bachelor's degree in Economics, focusing on data analysis and statistical methods.
Professional Experience: Worked as a data analyst at XYZ Corp, where I improved reporting efficiency by 30%.
Technical Skills: Proficient in SQL, Python, and Excel for data ma...
I have extensive experience with Excel, Python, R, and SQL for data analysis and programming tasks.
Proficient in Excel for data manipulation, analysis, and visualization
Skilled in Python for data cleaning, statistical analysis, and machine learning
Familiar with R for statistical modeling and data visualization
Experience with SQL for querying databases and extracting insights
I have extensive experience in customer support, focusing on resolving issues and enhancing client satisfaction through effective communication.
Handled over 100 customer inquiries daily, providing timely solutions and support.
Implemented a feedback system that improved response times by 20%.
Trained new team members on best practices for customer engagement.
Resolved complex issues by collaborating with technical teams, ...
I bring a unique blend of analytical skills, industry knowledge, and a passion for data-driven decision-making.
Strong analytical skills: I have experience using tools like Excel and SQL to analyze large datasets, leading to actionable insights.
Industry knowledge: I have worked in the finance sector, understanding market trends and consumer behavior, which can benefit your team.
Problem-solving mindset: In my previous ro...
I have completed various project works including data analysis, process improvement, and stakeholder communication.
Led a team in implementing a new data analysis tool to streamline reporting processes
Developed a project plan to improve efficiency in inventory management
Communicated project updates to stakeholders through regular meetings and reports
I applied via Naukri.com and was interviewed in Aug 2024. There was 1 interview round.
I am a highly skilled Automation Engineer with a strong background in programming and problem-solving.
Experienced in designing, developing, and implementing automated test scripts
Proficient in programming languages such as Python, Java, and C++
Familiar with testing tools like Selenium and Appium
Strong analytical and troubleshooting skills
Excellent communication and teamwork abilities
Developed a robotic arm project using PLC and HMI technologies
Designed the control system using Programmable Logic Controller (PLC)
Implemented the Human Machine Interface (HMI) for user interaction
Integrated sensors for feedback and control
Utilized ladder logic programming for PLC
Tested and debugged the system for efficiency
I am comfortable with multiple programming languages, including Python, Java, and C++.
Proficient in Python for automation scripting
Experience with Java for backend development
Knowledge of C++ for system programming
Comfortable switching between languages based on project requirements
OOPs stands for Object-Oriented Programming, a programming paradigm based on the concept of objects.
OOPs focuses on creating objects that contain data and methods to manipulate that data.
Encapsulation, inheritance, and polymorphism are key principles of OOPs.
Examples of OOP languages include Java, C++, and Python.
Overloading is when multiple methods have the same name but different parameters, while overriding is when a subclass provides a specific implementation for a method in the superclass.
Overloading involves multiple methods with the same name but different parameters
Overriding involves a subclass providing a specific implementation for a method in the superclass
Overloading is determined at compile time, while overriding ...
I faced challenges with integrating a new automation tool and resolved it by conducting thorough research and seeking help from experts.
Encountered compatibility issues with the new automation tool
Researched online forums and documentation for solutions
Sought advice from colleagues and experts in the field
Implemented workarounds and conducted thorough testing to ensure functionality
CSS is a styling language used to design web pages, while Bootstrap is a front-end framework that helps in building responsive and mobile-first websites.
CSS is a styling language used to control the look and feel of a website.
Bootstrap is a front-end framework that provides pre-designed templates and components for building responsive websites.
CSS requires manual coding for styling elements, while Bootstrap offers read...
Swap two values without using a third variable in a program
Use bitwise XOR operation to swap two values without using a third variable
Example: int a = 5, b = 10; a = a ^ b; b = a ^ b; a = a ^ b; // Now a = 10, b = 5
Ensure the values are of the same data type for bitwise XOR operation to work correctly
Program to remove vowels from string array input by user
Iterate through each string in the array
For each string, iterate through each character and remove vowels
Use a function to check if a character is a vowel (e.g. 'aeiouAEIOU')
To find the 2nd maximum salary from the employee table
Order the salaries in descending order
Use LIMIT 1,1 to get the second highest salary
Joins are used to combine rows from two or more tables based on a related column between them.
Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN.
INNER JOIN returns rows when there is at least one match in both tables.
LEFT JOIN returns all rows from the left table and the matched rows from the right table.
RIGHT JOIN returns all rows from the right table and the matched rows from the left table.
FULL ...
REST API is a type of web service that allows communication between different systems over HTTP.
REST stands for Representational State Transfer
Uses standard HTTP methods like GET, POST, PUT, DELETE
Data is transferred in JSON or XML format
Stateless communication between client and server
Example: Twitter API allows developers to access and interact with Twitter data
I am a results-driven professional with a background in consulting, project management, and a passion for problem-solving.
Educational Background: I hold a degree in Business Administration from XYZ University, where I graduated with honors.
Professional Experience: I have worked as a project coordinator at ABC Corp, managing cross-functional teams to deliver projects on time.
Skills: I possess strong analytical skills, d...
Challenges in automation include tool selection, maintenance, and handling dynamic elements.
Tool selection - choosing the right automation tool for the project requirements
Maintenance - keeping automation scripts up to date with application changes
Handling dynamic elements - dealing with elements on the page that change frequently
Data management - ensuring data integrity and accuracy in automated tests
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The duration of IQVIA interview process can vary, but typically it takes about less than 2 weeks to complete.
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