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Database

Navigate the world of databases with insightful articles and practical guidance on designing, optimizing, and managing data storage systems.

10 Unique SQL Project Ideas [With Source Code]
60,664
Project

10 Unique SQL Project Ideas [With Source Code]

SQL is one of the most important skills for working with databases and data. But learning commands alone is not enough. You need to know how to apply them to real problems. That is where SQL projects help. They give you hands-on practice with database design, joins, queries, indexing, reporting, and data analysis. In this […]

Vaishali
24 Oct, 2024 | 23 min
SQL Queries with Examples: Complete Guide from Basic to Advanced (2026)
149,690
Database

SQL Queries with Examples: Complete Guide from Basic to Advanced (2026)

SQL is one of the most valuable skills for anyone working with databases, data analytics, or software development. However, knowing SQL syntax is only the beginning. The real challenge is writing queries that retrieve accurate results, combine information from multiple tables, and solve practical business problems. A simple SELECT statement can retrieve employee records, whereas […]

Vaishali
29 Jan, 2024 | 12 min
Databricks for Data Analysis: A Complete Beginner’s Guide
2,151
Artificial Intelligence and Machine Learning

Databricks for Data Analysis: A Complete Beginner’s Guide

Databricks is a unified data analytics platform built on Apache Spark. It lets you store, process, and analyze large amounts of data without worrying about servers or infrastructure. Created in 2013 by the original Spark team, Databricks is now one of the most used platforms for data analysis across enterprise and startup environments. Think of […]

Vishalini Devarajan
20 Apr, 2026 | 13 min
SQL Window Functions: Practical Examples Every Analyst Needs
849
Database

SQL Window Functions: Practical Examples Every Analyst Needs

Basic SQL queries can filter, retrieve, aggregate, and summarize data. But analysts often need to answer more complex questions without collapsing individual rows. That is where SQL window functions become especially useful. Window functions allow you to rank records, calculate running totals, create moving averages, compare current and previous values, and perform department-wise or category-wise […]

Vaishali
07 Aug, 2026 | 14 min
What Is a Database Administrator? Roles, Responsibilities & Career Guide 
15,093
Data Science

What Is a Database Administrator? Roles, Responsibilities & Career Guide 

TL;DR What Is a Database Administrator?  A database administrator (DBA) is an IT professional who designs, maintains, secures, and optimises an organisation’s database systems. DBAs ensure that every database, whether on-premise or cloud-hosted,  stays available, performant, and protected at all times. Think of the DBA as the guardian of an organisation’s most valuable asset: its […]

Salini Balasubramaniam
29 Jun, 2024 | 15 min
10 Best Database Management Systems For Software Developers
65,734
Database

10 Best Database Management Systems For Software Developers

Every modern application needs somewhere to store and retrieve data. But choosing a database is no longer as simple as selecting SQL or NoSQL. A transactional banking application may need strict consistency and complex SQL queries. A content platform may require flexible documents. A gaming application may need sub-millisecond access to session data. Search-heavy applications […]

Vaishali
16 Feb, 2023 | 16 min
Important Database Management Interview Questions and Answers
7,136
Interview

Important Database Management Interview Questions and Answers

Database Management Interview Questions test more than definitions. They reveal how well you understand data modeling, SQL logic, normalization, transactions, indexing, concurrency, and real database behavior. Many questions begin with familiar concepts but quickly move into trade-offs, edge cases, and production scenarios. That is why strong preparation means understanding not only what a database concept […]

Vaishali
21 May, 2025 | 18 min
What is Normalization in DBMS? An Informative Guide [2026]
9,192
Database

What is Normalization in DBMS? An Informative Guide [2026]

Ever opened a database table and found the same customer address typed out fifty different times, with a few of them spelled slightly differently? That mess is exactly what normalization exists to fix. Normalization in DBMS is the process of organizing data so it’s stored efficiently, with little to no repeated information, by splitting large […]

Jebasta
24 Jun, 2024 | 17 min
ER Model in DBMS (2026): Step-by-Step Guide
2,153
Database

ER Model in DBMS (2026): Step-by-Step Guide

An ER Model is a way to visually represent how data is organized in a database — using entities, attributes, and relationships instead of complicated technical schemas. It’s usually the first step before any actual database gets built, since it helps map out the structure clearly on paper before writing a single line of code. […]

Abhishek Pati
03 Mar, 2026 | 8 min

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