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W Energy Software Interview Questions, Process, and Tips
Top W Energy Software Interview Questions and Answers
- Q1. What experience do you have with SQL database development or other programming languages?asked in SQL Database Developer interview
- Q2. What is the usage of the NVL() function? What is cursor? How to use a cursor?asked in SQL Developer interview
- Q3. What tools do you use for UI/UX Design? What is responsive design, and why it is important?asked in UX Designer interview
W Energy Software Interview Experiences
8 interviews found
padmapriyamaro
I applied via Company Website and was interviewed in Nov 2023. There were 6 interview rounds.
30 mins duration - Reasoning ability
(1 Question)
- Q1. What is a self-join? What is OLTP?
- Ans.
A self-join is when a table is joined with itself, typically to compare rows within the same table.
Self-joins are used to compare rows within the same table by creating an alias for the table.
They are commonly used to retrieve hierarchical data or compare related rows.
Example: SELECT e1.employee_name, e2.manager_name FROM employees e1 JOIN employees e2 ON e1.manager_id = e2.employee_id
(1 Question)
- Q1. What is an Index? Explain its different types.
- Ans.
An index is a data structure that improves the speed of data retrieval operations on a database table.
Indexes can be created on one or more columns in a table.
Types of indexes include clustered, non-clustered, unique, and composite indexes.
Indexes help in quickly locating data without having to scan the entire table.
Example: Creating an index on the 'employee_id' column in a table of employee records.
(1 Question)
- Q1. Tell me about your team management style. How would you describe it?
(1 Question)
- Q1. What are your goals? What are your outside interests?
Interview Preparation Tips
Skills evaluated in this interview
Top W Energy Software SQL Database Developer Interview Questions and Answers
SQL Database Developer Interview Questions asked at other Companies
Anonymous
I applied via Job Portal
(2 Questions)
- Q1. Rotate array left k places
- Q2. Find element in sorted array
Skills evaluated in this interview
rachitabinu
I applied via Referral
(1 Question)
- Q1. What is DBMS? What are the types of SQL queries?
- Ans.
DBMS stands for Database Management System. It is a software that manages databases and provides an interface for users to interact with the data.
DBMS is a software that allows users to create, manipulate, and manage databases.
It provides tools for data storage, retrieval, and organization.
DBMS ensures data integrity, security, and concurrency control.
Examples of popular DBMS include MySQL, Oracle, SQL Server, and Post
(1 Question)
- Q1. Describe your management style?
(1 Question)
- Q1. What experience do you have with SQL database development or other programming languages?
- Ans.
I have extensive experience in SQL database development and programming languages.
I have worked with SQL databases such as MySQL, Oracle, and SQL Server.
I am proficient in writing complex SQL queries, stored procedures, and triggers.
I have experience in database design, normalization, and performance optimization.
I am familiar with programming languages like Java, Python, and C#.
I have developed applications that inter...
(1 Question)
- Q1. Why do you want to work for our company?
Interview Preparation Tips
Skills evaluated in this interview
Top W Energy Software SQL Database Developer Interview Questions and Answers
SQL Database Developer Interview Questions asked at other Companies
kadambakishibu
30 mins duration with the Topics of Basics maths and english
(1 Question)
- Q1. What tools do you use for UI/UX Design? What is responsive design, and why it is important?
- Ans.
UI/UX designers use various tools for design, such as Sketch, Adobe XD, and Figma.
Sketch is a popular tool used for creating UI designs and prototypes.
Adobe XD is another widely used tool that allows designers to create interactive prototypes.
Figma is a collaborative design tool that enables real-time collaboration and prototyping.
Other tools include InVision, Axure RP, and Marvel.
(1 Question)
- Q1. What professional accomplishment are you most proud of? why?
(1 Question)
- Q1. Why should we hire you? What are your outside interests?
Interview Preparation Tips
Skills evaluated in this interview
UX Designer Interview Questions asked at other Companies
W Energy Software interview questions for popular designations
Ambrose Daphny
I applied via Company Website and was interviewed in Nov 2023. There were 6 interview rounds.
30 mins duration. Reasoning
(2 Questions)
- Q1. What is SQL and Database?
- Ans.
SQL is a programming language used for managing and manipulating relational databases.
SQL stands for Structured Query Language.
It is used to communicate with and manage databases.
SQL allows users to create, modify, and retrieve data from databases.
It is a standard language for relational database management systems (RDBMS).
SQL is used for tasks like data insertion, deletion, updating, and querying.
Examples of popular R...
- Q2. What are Constraints?
- Ans.
Constraints are rules applied to a database table to enforce data integrity and ensure accuracy.
Constraints define limits or conditions on the data that can be inserted, updated, or deleted in a table.
They help maintain data consistency and prevent invalid or inconsistent data from being stored.
Common types of constraints include primary key, foreign key, unique, not null, and check constraints.
Examples: A primary key ...
(1 Question)
- Q1. What is the Primary Key?
- Ans.
Primary Key is a unique identifier for each record in a database table.
Primary Key ensures data integrity by enforcing uniqueness and preventing duplicate records.
It is used to establish relationships between tables in a database.
Primary Key can be a single column or a combination of multiple columns.
It is often used as a reference in foreign key constraints.
Examples of Primary Keys include social security numbers, ema
(1 Question)
- Q1. Tell us about your previous experience?
(1 Question)
- Q1. What is SQL Injection?
- Ans.
SQL Injection is a code injection technique where an attacker inserts malicious SQL statements into a query to manipulate the database.
SQL Injection is a common web application vulnerability.
It occurs when user-supplied input is not properly validated or sanitized.
Attackers can exploit SQL Injection to bypass authentication, retrieve sensitive data, modify or delete data, or even execute arbitrary commands.
Preventing S...
Interview Preparation Tips
Skills evaluated in this interview
Top W Energy Software SQL Developer Interview Questions and Answers
SQL Developer Interview Questions asked at other Companies
gadadevirajan
I applied via Company Website and was interviewed in Jul 2023. There were 5 interview rounds.
30 mins duration - Reasoning
(1 Question)
- Q1. Explain SQL Constraints? What is data integrity?
- Ans.
SQL constraints are rules that are applied to a table's columns to ensure data integrity.
Constraints are used to enforce rules and restrictions on data in SQL tables.
They help maintain data integrity by preventing invalid or inconsistent data from being inserted or updated.
Common types of constraints include primary key, foreign key, unique, and check constraints.
For example, a primary key constraint ensures that each ...
(1 Question)
- Q1. Why this role attract you?
(1 Question)
- Q1. What brought you here?
(1 Question)
- Q1. Can you work under pressure?
Interview Preparation Tips
Skills evaluated in this interview
Top W Energy Software SQL Developer Interview Questions and Answers
SQL Developer Interview Questions asked at other Companies
Jobs at W Energy Software
I applied via Company Website and was interviewed in Jun 2023. There were 6 interview rounds.
30 mins duration , Topics - Logical Reasoning, Arithmetic Operation
(1 Question)
- Q1. What is the definition of Database? What are DBMS and RDBMS?
- Ans.
A database is a structured collection of data that is stored and accessed electronically.
DBMS stands for Database Management System, which is a software that manages databases.
RDBMS stands for Relational Database Management System, which organizes data into tables with rows and columns.
Examples of RDBMS include MySQL, Oracle, and SQL Server.
(1 Question)
- Q1. What are tables and fields?
- Ans.
Tables are structures that store data in a database, while fields are columns within a table that hold specific pieces of information.
Tables are like spreadsheets with rows and columns
Fields are the columns in a table that hold specific types of data
Examples: 'Employees' table with fields like 'Name', 'Age', 'Salary'
(1 Question)
- Q1. What was your overall goal?
(1 Question)
- Q1. What makes you unique?
Interview Preparation Tips
Skills evaluated in this interview
Top W Energy Software SQL Database Developer Interview Questions and Answers
SQL Database Developer Interview Questions asked at other Companies
mugesh dhayal
I applied via Naukri.com and was interviewed in Nov 2023. There were 3 interview rounds.
30 mins duration - verbal ability
(1 Question)
- Q1. What is the usage of the NVL() function? What is cursor? How to use a cursor?
- Ans.
The NVL() function is used to replace NULL values with a specified value.
NVL() is commonly used in SQL queries to handle NULL values.
It takes two arguments: the value to be checked and the replacement value.
If the value is NULL, the function returns the replacement value.
If the value is not NULL, the function returns the original value.
Example: SELECT NVL(column_name, 'N/A') FROM table_name;
Interview Preparation Tips
Skills evaluated in this interview
Top W Energy Software SQL Developer Interview Questions and Answers
SQL Developer Interview Questions asked at other Companies
Interview questions from similar companies
Selected
I applied via Company Website and was interviewed in May 2024. There were 2 interview rounds.
Evaluate your potential to succeed in certain area by looking at your strength and weakness in particular abilities
(3 Questions)
- Q1. What is primary key in sql ?
- Ans.
Primary key in SQL is a unique identifier for each record in a table.
Primary key ensures each record in a table is unique
Primary key can be a single column or a combination of columns
Primary key is used to establish relationships between tables
- Q2. What is foreign key
- Ans.
A foreign key is a column or a group of columns in a database table that uniquely identifies a record in another table.
A foreign key establishes a relationship between two tables by referencing the primary key of another table.
It ensures referential integrity, meaning that a record in one table cannot be inserted if the corresponding record in the related table does not exist.
Foreign keys help maintain data consistency...
- Q3. What is view in sql?
- Ans.
A view in SQL is a virtual table based on the result-set of a SELECT statement.
Views are used to simplify complex queries by storing them as a virtual table.
They can contain data from one or more tables.
Views do not store data themselves, but display data from the tables they are based on.
Views can be used to restrict access to specific columns or rows of a table.
Example: CREATE VIEW vw_employee AS SELECT emp_id, emp_n
Interview Preparation Tips
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Skills evaluated in this interview
I applied via Referral and was interviewed before Aug 2021. There was 1 interview round.
(2 Questions)
- Q1. How find unique values in a table
- Ans.
Use SELECT DISTINCT statement to find unique values in a table.
Use SELECT DISTINCT column_name FROM table_name
DISTINCT keyword returns only unique values
Can be used with multiple columns
Can be combined with other SQL statements like WHERE and ORDER BY
- Q2. How to troubleshoot a stored procedure
- Ans.
To troubleshoot a stored procedure, check for syntax errors, run the procedure with test data, and use debugging tools.
Check for syntax errors in the stored procedure code
Run the procedure with test data to identify any logical errors
Use debugging tools like SQL Server Profiler or Visual Studio Debugger to step through the code and identify issues
Check for any database connectivity issues or permission errors
Review the...
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Skills evaluated in this interview
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4-6 Yrs
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Senior Software Engineer
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