Interview Questions Acid Properties Data Warehousing Compiler Design Computer Network Digital Electronics A Database Management System (DBMS) is software used to manage data from a database. It acts as an interface between the database and end users or applications, ensuring data is consistently organised, easily accessible, and secure. A database is a structured collection of data that is stored in an electronic device. The data can be text, video, image, or any other format. A relational database stores data in the form of tables, and a NoSQL database stores data in the form of key-value pairs. A DBMS is a software that allows to create, update, and retrieval of data in an organised way. It also provides security to the database. Examples of relational DBMS are MySQL, Oracle, Microsoft SQL Server, PostgreSQL, and Snowflake. Examples of NoSQL DBMS are MongoDB, Cassandra, DynamoDB, and Redis. Understand the basics of DBMS, explore how it works, and learn about different database architectures used in real-world systems. Types of DBMS Architecture Entity Relationship Model It is a conceptual model for designing a databases to represent real-world data using entities, attributes, and relationships. Enhanced ER Model Minimization of ER Diagram Generalization, Specialization and Aggregation Recursive Relationships Relational Model and Functional Dependencies Provides a structured way to organize data into tables and how queries are expressed mathematically and logically to retrieve data from relational databases. Relational Model Keys (Candidate, Super, Primary, Alternate and Foreign) Functional Dependency Attribute Closure Equivalence of Functional Dependencies Canonical Cover Anomalies in Relational Model Mapping from ER Model to Relational Model Strategies for Schema design Schema Integration Quiz: ER and Relational Model Important process in database design that helps improve the database's efficiency, consistency, and accuracy. The Problem of redundancy in Database Dependency Preserving Decomposition Lossless Join Decomposition How to find the Highest Normal Form of a Relation Domain Key normal form Denormalization in Databases Data Replication Quiz: Normal Forms Relational Algebra and Calculus Formal query languages used in DBMS to retrieve and manipulate data from relational databases. Basic Operators Extended Operators Inner Join vs Outer Join Join operation Vs nested query Tuple Relational Calculus Row oriented vs. column oriented data stores Transactions and Concurrency Control Ensure reliable execution of database operations and manages simultaneous access without conflicts. ACID Properties Lock Based Protocol Graph Based Protocol Multiple Granularity Locking Timestamp Ordering Protocols Thomas Write Rule Timestamp and Deadlock Prevention Schemes Log based recovery Types of OLAP Systems Quiz: Transactions and concurrency control File Organization, Indexing, B and B+ Trees Method of storing data records in a file so they can be accessed efficiently. It determines how data is arranged, stored, and retrieved from physical storage. File Organization Indexing in Databases SQL queries on clustered and non-clustered Indexes Bitmap Indexing Practice questions on B and B+ Trees Quiz: Indexing, B and B+ Trees , File structures Advanced Topics Concepts focus on improving performance, scalability, security, and data retrieval across modern systems. Distributed Database System Query Optimization Difference between RDBMS and HBase Challenges of database security Data Management issues in Mobile database Future Works in Geographic Information System

Web Information Retrieval | Vector Space Model Data Warehouse and Data Mining Store large volumes of historical data and discover useful patterns from it. Data Warehousing Data Warehouse Architecture Dimensional Data Modeling Architecture and Working of Hive SQL Tutorial & Interview Questions SQL is the standard language used to store, retrieve, and manipulate data in relational databases. SQL Interview Questions PostgreSQL Interview Questions PL/SQL Interview Questions DBMS interview questions Miscellaneous Topics Help build a deeper understanding of how databases interact with users, applications, and internal structures. DBMS Interfaces Categories of DBMS Users Data Abstraction and Data Independence Database Objects Impedance Mismatch DBMS practices questions Database Management Systems | Set 1 Database Management Systems | Set 2 Database Management Systems | Set 3 Database Management Systems | Set 4 Database Management Systems | Set 5 Database Management Systems | Set 6 Database Management Systems | Set 7 Database Management Systems | Set 8 Database Management Systems | Set 9 Database Management Systems | Set 10 Database Management Systems | Set 11 Last Minutes Notes(LMNs) on DBMS Quizzes on DBMS Introduction of DBMS 5 min read History of DBMS 6 min read Types of DBMS Architecture 5 min read Difference between File System and DBMS 6 min read Introduction of ER Model 9 min read Structural Constraints of Relationships in ER Model 3 min read Generalization, Specialization and Aggregation in ER Model 3 min read Introduction of Relational Model and Codd Rules in DBMS 14 min read Keys in Relational Model 7 min read Mapping from ER Model to Relational Model 5 min read Strategies for Schema design in DBMS 6 min read Introduction to Relational Algebra in DBMS 8 min read SQL Joins (Inner, Left, Right and Full Join) 3 min read Join Operation vs Nested Query in DBMS 3 min read Tuple Relational Calculus (TRC) in DBMS 4 min read Domain Relational Calculus in DBMS 4 min read Attribute Closure in DBMS 4 min read Armstrong's Axioms in Functional Dependency in DBMS 4 min read Canonical Cover of Functional Dependencies in DBMS 7 min read Normal Forms in DBMS 5 min read The Problem of Redundancy in Database 3 min read Lossless Join and Dependency Preserving Decomposition 4 min read Denormalization in Databases 4 min read ACID Properties in DBMS 5 min read Types of Schedules in DBMS 5 min read Concurrency Control in DBMS 3 min read Graph Based Concurrency Control Protocol in DBMS 3 min read Multiple Granularity Locking in DBMS 3 min read Database Recovery Techniques in DBMS 4 min read Deadlock in DBMS 4 min read Indexing in Databases 6 min read Introduction of B Tree 7 min read Introduction of B+ Tree 5 min read Bitmap Indexing in DBMS 3 min read Inverted Index 7 min read SQL Queries on Clustered and Non-Clustered Indexes 6 min read File Organization in DBMS 4 min read Last Minute Notes - DBMS 15+ min read DBMS Interview Questions with Answers 15+ min read Commonly asked DBMS Interview Questions | Set 2 5 min read Database Management System - GATE CSE Previous Year Questions 2 min read GATE CS/IT/DA Courses 2 min read Placement 360 Course 2 min read