telugudatahub@gmail.com 1. What is the difference between a clustered and non-clustered index? Answer: Clustered Index sorts and stores the data rows in the table based on the key values. Only one clustered index per table. Non-Clustered Index creates a separate structure from the data rows. Example: — Clustered Index CREATE CLUSTERED INDEX idx_emp_id ON Employees(Id); — … Read more
Q41. What is the IN operator? Answer:IN allows you to specify multiple values in a WHERE clause. Example: SELECT * FROM Employees WHERE Department IN (‘HR’, ‘Finance’); Q42. What is the EXISTS operator? Answer:EXISTS checks if a subquery returns any records. Example: SELECT Name FROM Employees WHERE EXISTS (SELECT 1 FROM Departments WHERE Employees.DepartmentID = … Read more
Q31. What is Normalization in SQL? Answer:Normalization is the process of organizing data to minimize redundancy and improve data integrity. Q32. What are the different Normal Forms? Answer: 1NF (First Normal Form): Atomic columns 2NF (Second Normal Form): No partial dependency 3NF (Third Normal Form): No transitive dependency Q33. What is Denormalization? Answer:Denormalization is the … Read more
Q21. What is an INNER JOIN? Answer:INNER JOIN returns records that have matching values in both tables. Example: SELECT Employees.Name, Departments.DepartmentName FROM Employees INNER JOIN Departments ON Employees.DepartmentID = Departments.DepartmentID; Q22. What is a LEFT JOIN? Answer:LEFT JOIN returns all records from the left table and matching records from the right table. Non-matching records from … Read more
Q11. What is a SQL Query? Answer:A SQL query is a command written to interact with the database. It is used to retrieve, insert, update, or delete data. Example: SELECT * FROM Employees; Q12. What are DDL, DML, DCL, and TCL in SQL? Answer: Command Type Full Form Example Commands DDL Data Definition Language CREATE, … Read more
Q1. What is SQL? Answer:SQL (Structured Query Language) is the standard language used to communicate with relational databases. It is used to create, retrieve, update, and delete data. Q2. What are the different types of SQL commands? Answer:SQL commands are classified into: DDL (Data Definition Language): CREATE, ALTER, DROP DML (Data Manipulation Language): SELECT, INSERT, … Read more
🧠 Job Title: GenAI/NLP Engineer – AI Meeting Assistant Company: Jarwiz AILocation: RemoteType: Full-TimeStipend: ₹20,000 – ₹35,000/monthExperience: 0–2 YearsEducation: BE/BTech/MTech (Final Year or Graduated) 🚀 About Us At Jarwiz AI, we’re building the Jarvis for online meetings — a real-time AI-powered meeting companion that listens, understands, and acts during meetings. It analyzes conversations, provides smart … Read more
Company: Micron Technology, Inc.Location: India (Remote/On-site depending on team requirement)Experience: 0–2 Years (Freshers with skills can apply) 🌐 About Micron Micron Technology is a global leader in memory and storage solutions. From data centers to AI and mobile, we power innovation across the world. Learn more: micron.com/careers 🧠 About the Role Join Micron’s Digital Supply … Read more
📍 Location: Bengaluru, India🆔 Requisition ID: 60366🏢 Company: Wipro Limited 🏢 About Wipro Wipro Limited (NYSE: WIT, BSE: 507685, NSE: WIPRO) is a leading global technology services and consulting company. With over 230,000 employees across 65 countries, Wipro delivers innovation-led digital transformation for some of the world’s most prominent organizations. Our integrated portfolio spans consulting, … Read more
📍 Location: Remote🏢 Company: Confia Software🕒 Type: Full-Time 🏢 About Confia Software Confia Software is a performance marketing company with over 16 years of experience, specializing in LinkedIn Ads, Google Ads, SEO, and more. We are redefining B2B marketing with innovative, data-driven strategies that deliver real results. Our expertise in full-funnel LinkedIn marketing combines thought … Read more