NEC Software Solutions Plsql Developer Interview Questions and Answers

Q1. Plsql Function procedure
Ans. 
A PL/SQL function is a named PL/SQL block that returns a value.
• Functions are used to perform a specific task and return a single value.

• They can accept input parameters and return a value.

• Functions can be called from SQL statements or other PL/SQL blocks.
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Q2. Write program on given topic
Ans. 
Write a program to calculate the factorial of a given number.
• Create a function to calculate the factorial recursively or iteratively.

• Handle edge cases like negative numbers or zero.

• Use a loop to multiply numbers from 1 to the given number to calculate the factorial.
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Q1. Basic SQL questions
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Q2. Advanced PLSQL questions
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Technical MCQ questions on core computer science subjects were asked.

Q1. How to find whether the given linked list has loop in it?
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Q2. Explain osi model with example of browser.
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Q1. Core java, advanced java, spring boot, Hibernate, database
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Q2. Design pattern, previous project experience
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Q1. Display a list of items using Pagination concept in React using any online coding editor.
Ans. 
Display a list of items using Pagination concept in React
• Create a list of items to display

• Implement pagination logic to display a limited number of items per page

• Add navigation buttons to switch between pages
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Q2. Check if pair sum exists in the array (Two Sum)?
Ans. 
Check if pair sum exists in the array using a hash map.
• Use a hash map to store the difference between the target sum and each element in the array.

• Iterate through the array and check if the current element exists in the hash map.

• Return true if a pair sum exists, otherwise return false.
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Q3. React LifeCycle?
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Q4. How do you improve the performance of a website?
Ans. 
Improving website performance involves optimizing code, reducing server requests, using caching, and optimizing images.
• Optimize code by minifying CSS, JavaScript, and HTML

• Reduce server requests by combining files and using asynchronous loading

• Utilize caching techniques like browser caching and server-side caching

• Optimize images by resizing, compressing, and using modern image formats like WebP
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Q5. What is NextJS?
Ans. 
NextJS is a React framework that allows for server-side rendering and static site generation.
• NextJS is built on top of React, providing features like server-side rendering and static site generation.

• It simplifies the process of building React applications by handling routing, code splitting, and more out of the box.

• NextJS also supports API routes for serverless functions and data fetching.

• It offers features like automa...read more
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The interview will last for 30 minutes and will include basic Node.js questions, followed by two coding questions.

3 coding questions, very basic

Q1. Again DSA and DBMS questions, easy to medium easy
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