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IDC Technologies SQL Developer Interview Questions and Answers

Updated 23 Dec 2023

IDC Technologies SQL Developer Interview Experiences

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SQL Developer Interview Questions & Answers

user image VIJAY KUMAR MANGALI

posted on 23 Dec 2023

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
-
Result
Selected Selected
Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Technical 

(2 Questions)

  • Q1. What are joins
  • Ans. 

    Joins are used to combine rows from two or more tables based on a related column between them.

    • Joins are used in SQL to retrieve data from multiple tables based on a related column between them.

    • Common 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;

  • Answered by AI
  • Q2. What is DML and use
  • Ans. 

    DML stands for Data Manipulation Language and is used to manipulate data in a database.

    • DML is used to insert, update, delete, and retrieve data in a database.

    • Examples of DML statements include INSERT, UPDATE, DELETE, and SELECT.

    • DML is essential for managing and modifying data within a database.

  • Answered by AI
Round 3 - One-on-one 

(2 Questions)

  • Q1. Explain your job experience and projects done till now
  • Q2. What is your expected salary

Skills evaluated in this interview

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I feel like I can't speak fluently during interviews. I do know english well and use it daily to communicate, but the moment I'm in an interview, I just get stuck. since it's not my first language, I struggle to express what I actually feel. I know the answer in my head, but I just can’t deliver it properly at that moment. Please guide me
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I appeared for an interview before Mar 2021.

Round 1 - Coding Test 

(3 Questions)

Round duration - 60 minutes
Round difficulty - Medium

21 students were shortlisted from the 1st MCQ round and in this round we were asked to write the codes (function only) of 3 questions in 1 hour time.

  • Q1. 

    Rotting Oranges Problem Statement

    You are given a grid containing oranges where each cell of the grid can contain one of the three integer values:

    • 0 - representing an empty cell
    • 1 - representing a fre...
  • Ans. 

    Find the minimum time required to rot all fresh oranges in a grid.

    • Use Breadth First Search (BFS) to simulate the rotting process

    • Track the time taken to rot all oranges and return -1 if any fresh oranges remain

    • Handle edge cases like no fresh oranges or all oranges already rotten

    • Consider using a queue to efficiently process adjacent oranges

  • Answered by AI
  • Q2. 

    Majority Element Problem Statement

    Given an array/list 'ARR' consisting of 'N' integers, your task is to find the majority element in the array. If there is no majority element present, return -1.

    Exampl...

  • Ans. 

    Find the majority element in an array, return -1 if no majority element exists.

    • Iterate through the array and keep track of the count of each element using a hashmap.

    • Check if any element's count is greater than floor(N/2) to determine the majority element.

    • Return the majority element or -1 if no majority element exists.

  • Answered by AI
  • Q3. 

    Maximum Path Sum Between Two Leaves Problem Description

    You are provided with a non-empty binary tree in which each node contains a non-negative integer value. Your task is to find and return the maximum ...

  • Ans. 

    Find the maximum path sum between two leaf nodes in a binary tree.

    • Traverse the tree to find the maximum path sum between two leaf nodes.

    • Keep track of the maximum sum found so far.

    • Consider all possible paths between leaf nodes.

    • Handle cases where the tree has only a single leaf node.

    • Implement a recursive function to calculate the maximum path sum.

  • Answered by AI
Round 2 - Face to Face 

(3 Questions)

Round duration - 60 minutes
Round difficulty - Medium

This was a technical round with DSA based questions.

  • Q1. 

    N-th Node From The End Problem Statement

    You are given a Singly Linked List of integers. The task is to find the N-th node from the end of the list.

    Example:

    Input:
    If the given list is (1 -> -2 -&g...
  • Ans. 

    Find the N-th node from the end of a Singly Linked List of integers.

    • Traverse the list to find the length L of the list.

    • Calculate the position of the N-th node from the beginning as L - N + 1.

    • Traverse the list again to reach the calculated position and return the node's value.

  • Answered by AI
  • Q2. 

    LCA of Binary Tree Problem Statement

    You are given a binary tree consisting of distinct integers and two nodes, X and Y. Your task is to find and return the Lowest Common Ancestor (LCA) of these two nodes...

  • Ans. 

    Find the Lowest Common Ancestor (LCA) of two nodes in a binary tree.

    • Traverse the binary tree to find the paths from the root to nodes X and Y.

    • Compare the paths to find the last common node, which is the LCA.

    • Handle cases where one node is an ancestor of the other or when one node is the LCA itself.

  • Answered by AI
  • Q3. 

    Reverse Words in a String: Problem Statement

    You are given a string of length N. Your task is to reverse the string word by word. The input may contain multiple spaces between words and may have leading o...

  • Ans. 

    Reverse words in a string while handling leading/trailing spaces and multiple spaces between words.

    • Split the input string by spaces to get individual words

    • Reverse the list of words

    • Join the reversed words with a single space in between

    • Handle leading/trailing spaces by stripping them before and after reversing

  • Answered by AI
Round 3 - Face to Face 

(3 Questions)

Round duration - 60 minutes
Round difficulty - Easy

Technical Interview round with questions based on DSA

  • Q1. 

    Minimum Time To Solve The Problems

    Given 'N' subjects, each containing a certain number of problems, and 'K' friends, assign subjects to friends such that each subject goes to exactly one friend, maintain...

  • Ans. 

    Assign subjects to friends to minimize maximum workload, find minimum time for most loaded friend.

    • Sort subjects in descending order

    • Assign subjects to friends one by one until all subjects are assigned

    • The maximum workload will be the sum of problems assigned to the friend with the most problems

    • Return the maximum workload as the minimum time required

  • Answered by AI
  • Q2. What is grammar in the context of compiler design?
  • Ans. 

    Grammar in compiler design defines the syntax and structure of a programming language.

    • Grammar specifies the rules for forming valid statements in a programming language.

    • It consists of a set of production rules that define how valid programs can be constructed.

    • There are different types of grammars such as context-free grammar, regular grammar, etc.

    • Example: In C programming language, the grammar specifies that a for loop...

  • Answered by AI
  • Q3. What is a token in compiler design?
  • Ans. 

    A token in compiler design is a basic unit of syntax that the compiler can understand and process.

    • Tokens are the smallest units of a program that are meaningful to the compiler.

    • Examples of tokens include keywords, identifiers, operators, and punctuation symbols.

    • Tokens are generated by the lexical analysis phase of the compiler.

    • Tokens are used by the parser to build the abstract syntax tree of the program.

  • Answered by AI
Round 4 - Video Call 

(3 Questions)

Round duration - 60 minutes
Round difficulty - Easy

Technical round with questions on DSA and Compiler Design mainly. He told me that you’ll be having your final HR round in some time. I knew that I was going well because he seemed to be quite satisfied with my answers.

  • Q1. 

    Sum Root to Leaf Numbers

    You are given an arbitrary binary tree consisting of N nodes, each associated with an integer value from 1 to 9. Each root-to-leaf path can be considered a number formed by concat...

  • Ans. 

    Find the total sum of all root to leaf paths in a binary tree formed by concatenating node values.

    • Traverse the binary tree from root to leaf nodes, keeping track of the current path sum

    • Add the current path sum to the total sum when reaching a leaf node

    • Use modulo (10^9 + 7) to handle large outputs

  • Answered by AI
  • Q2. What is a regular language?
  • Ans. 

    A regular language is a language that can be recognized by a finite automaton.

    • Regular languages can be described by regular expressions.

    • Regular languages are closed under union, concatenation, and Kleene star operations.

    • Examples of regular languages include the set of all strings over an alphabet that contain an even number of 'a's.

  • Answered by AI
  • Q3. What are NP and NP-Hard problems?
  • Ans. 

    NP problems are decision problems that can be verified in polynomial time, while NP-Hard problems are at least as hard as the hardest problems in NP.

    • NP problems can be verified in polynomial time but not necessarily solved in polynomial time.

    • NP-Hard problems are at least as hard as the hardest problems in NP, but may not be in NP themselves.

    • Examples of NP problems include the subset sum problem and the traveling salesm...

  • Answered by AI
Round 5 - HR 

Round duration - 30 minutes
Round difficulty - Easy

That was the round for which I’ve been waiting for hours 
She was very friendly and nice to talk to. It didn’t seem that I was talking to the HR. It was more like talking to a friend. Finally we discussed about the pay-scale and work culture in Accolite.

Interview Preparation Tips

Eligibility criteriaAbove 7 CGPAAccolite Digital Pvt Ltd interview preparation:Topics to prepare for the interview - Data Structures, Algorithms, System Design, Aptitude, OOPSTime required to prepare for the interview - 6 monthsInterview preparation tips for other job seekers

Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.

Application resume tips for other job seekers

Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.

Final outcome of the interviewSelected

Skills evaluated in this interview

SQL Developer Interview Questions Asked at Other Companies

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I applied via Campus Placement and was interviewed before Jan 2021. There were 3 interview rounds.

Interview Questionnaire 

3 Questions

  • Q1. 1. Write a code to split an array of integers into two subarray where both the array has equal sum.
  • Ans. 

    Code to split an array of integers into two subarrays with equal sum.

    • Iterate through the array and calculate the total sum.

    • Divide the sum by 2 to get the target sum for each subarray.

    • Use dynamic programming to find a subset of the array that adds up to the target sum.

    • Return the two subarrays.

    • Example: [1, 2, 3, 4, 5, 6] -> [1, 2, 3, 6], [4, 5]

    • Example: [1, 2, 3, 4, 5] -> [1, 4, 5], [2, 3]

  • Answered by AI
  • Q2. To write code to build up a binary tree from scratch (implement a BST) and then to write all the methods like all the tree traversal algo, and all other stuffs.
  • Ans. 

    Implementing a binary search tree and its traversal methods.

    • Start by defining a Node class with left and right child pointers.

    • Implement insert() method to add nodes to the tree.

    • Implement inorder(), preorder(), and postorder() traversal methods.

    • Implement search() method to find a node in the tree.

    • Implement delete() method to remove a node from the tree.

    • Consider edge cases like empty tree, duplicate nodes, etc.

  • Answered by AI
  • Q3. Other OOPs concept and questions related to DSA and OS.

Interview Preparation Tips

Interview preparation tips for other job seekers - Accolite has a difficult hiring bar and hires only the good ones. Focus on DSA concepts and practice as many questions from Leetcode, Interviewbits, GFG. Focus on all the OOPs concept and subject like OS.

Skills evaluated in this interview

Interview Questionnaire 

1 Question

  • Q1. Java multithreading, oops

I applied via Naukri.com and was interviewed before Dec 2020. There were 4 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. All related to the technical queries based on the profile and project required skill set

Interview Preparation Tips

Interview preparation tips for other job seekers - Be good at the technical point of view and project management with time line delivery as they have client facing interviews and one has to visit client side for work.

I applied via Campus Placement and was interviewed before Apr 2021. There were 2 interview rounds.

Round 1 - Technical 

(1 Question)

  • Q1. Fundamentals based upon the role
Round 2 - Technical 

(1 Question)

  • Q1. Basic advance question into the technical skills like if you’re applying for backend role and your preferred language is java then how does the stack and queue works

Interview Preparation Tips

Topics to prepare for Quantiphi Analytics Solutions Private Limited Software Developer interview:
  • Javascript
  • promises
  • Timing Closure
  • React.Js
  • Router
  • axios
  • crud operations
Interview preparation tips for other job seekers - You can enhance your technical skills while working but what they Check is your logic and approach towards the problem

I applied via Naukri.com and was interviewed in Jun 2021. There were 3 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. They asked me questions related to my project on which i had work in my last company. And there were questions from core java , database, collections, Spring framework ,

Interview Preparation Tips

Interview preparation tips for other job seekers - Just keep your basic clear , You must have a clear understanding of the topics which you prepare for interview.keep your basic very strong .
Are these interview questions helpful?

I applied via Campus Placement and was interviewed before Jul 2021. There were 5 interview rounds.

Round 1 - Aptitude Test 

Round 1 was about 60 mins long. Basic Aptitude questions along with Programming MCQ

Round 2 - Coding Test 

Round 2 had 2 coding questions with a time limit of 60mins. Intermediate level problem solving
knowledge is neccessary.

Round 3 - Technical 

(1 Question)

  • Q1. Technical Round 1 was 1hr long. Detailed Insights about my project and a few programming questions in DSA
Round 4 - Technical 

(1 Question)

  • Q1. This Technical Round 2 was 1hr long and was mainly focused on problem solving skills and a few basic programming concepts.
Round 5 - HR 

(1 Question)

  • Q1. Three Situational questions were asked .

Interview Preparation Tips

Topics to prepare for Bounteous x Accolite Software Developer interview:
  • Data Structures
  • Algorithms
  • CPP
  • Problem Solving
Interview preparation tips for other job seekers - Prepare Well . Perform well with full confidence

I appeared for an interview in Apr 2021.

Round 1 - Coding Test 

(1 Question)

Round duration - 90 minutes
Round difficulty - Hard

Timing was 10 AM. Platform was very lagging. So overall it was not a good experience.

  • Q1. 

    Topological Sort Problem Statement

    You are given a directed acyclic graph (DAG). Your task is to perform topological sorting of the graph and return any valid ordering.

    Explanation:

    A directed acyclic g...

  • Ans. 

    Implement a function to perform topological sorting on a directed acyclic graph (DAG).

    • Create a graph data structure to represent the DAG.

    • Use depth-first search (DFS) to perform topological sorting.

    • Maintain a visited array to keep track of visited nodes.

    • Return the topological ordering of the graph as an array of integers.

  • Answered by AI

Interview Preparation Tips

Professional and academic backgroundI completed Computer Science Engineering from Chitkara University. Eligibility criteriaAbove 6 CGPAAccolite interview preparation:Topics to prepare for the interview - Data Structures, Pointers, OOPS, System Design, Algorithms, Dynamic ProgrammingTime required to prepare for the interview - 1 monthInterview preparation tips for other job seekers

Tip 1 : Practice data structure 
Tip 2 : Do some projects
 

Application resume tips for other job seekers

Tip 1 : Keep it short
Tip 2 : Try not to add false information

Final outcome of the interviewRejected

Skills evaluated in this interview

I applied via Campus Placement and was interviewed in Dec 2020. There was 1 interview round.

Interview Questionnaire 

2 Questions

  • Q1. 1. If you given a no return its corresponding excel no.
  • Ans. 

    Convert given no to corresponding excel no.

    • Excel no starts from 1 and goes up to 16384

    • Excel no is calculated using column and row numbers

    • For example, 1 corresponds to A, 27 corresponds to AA, 28 corresponds to AB, and so on

  • Answered by AI
  • Q2. 2. find unique character in a window of k size in a string
  • Ans. 

    Find unique characters in a window of k size in a string.

    • Use a sliding window approach.

    • Maintain a hash table to keep track of character frequency.

    • Remove characters from hash table as the window slides.

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Communication is very important. Give your solution from brute force to optimal. Interviewer has tell me to write code of both questions in any programming language.

Skills evaluated in this interview

IDC Technologies Interview FAQs

How many rounds are there in IDC Technologies SQL Developer interview?
IDC Technologies interview process usually has 3 rounds. The most common rounds in the IDC Technologies interview process are Resume Shortlist, Technical and One-on-one Round.
What are the top questions asked in IDC Technologies SQL Developer interview?

Some of the top questions asked at the IDC Technologies SQL Developer interview -

  1. what is DML and ...read more
  2. what are jo...read more

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Overall Interview Experience Rating

4.5/5

based on 2 interview experiences

Difficulty level

Easy 50%
Moderate 50%

Duration

Less than 2 weeks 100%
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IDC Technologies SQL Developer Salary
based on 5 salaries
₹3 L/yr - ₹8 L/yr
7% more than the average SQL Developer Salary in India
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IDC Technologies SQL Developer Reviews and Ratings

based on 4 reviews

3.0/5

Rating in categories

3.0

Skill development

3.0

Work-life balance

3.0

Salary

3.0

Job security

3.0

Company culture

3.0

Promotions

3.0

Work satisfaction

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