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Free online wide MCQ Exam for "DBMS"

406+ questions to prepare...

DBMS

About DBMS

These focus on the theoretical aspects: Architecture, ER Diagrams, Normalization, Transaction Management, Concurrency Control, and Distributed Databases, separating them from the specific SQL syntax questions provided earlier.Advanced Transaction States, Concurrency Protocols, Query Processing Algorithms, Object-Oriented Databases, and Security models.

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Frequently Asked Questions (FAQ)

This is an online platform that allows users to create, share, and participate in quiz on a variety of topics.

A Database Management System (DBMS) allows users to create, protect, read, update, and delete data in a database while ensuring data integrity and security.

Normalization is the process of organizing data to minimize redundancy and dependency by dividing large tables into smaller, related ones.

A stored procedure is a prepared SQL code that you can save and reuse, allowing for better performance and security in database operations.

DELETE removes specific rows (and can be rolled back), while TRUNCATE removes all rows from a table and cannot be undone easily.

A Join is a clause used to combine rows from two or more tables based on a related column between them.

Concurrency control is the process of managing simultaneous operations on a database so that data integrity is maintained without interference.

A Data Warehouse is a centralized repository used for reporting and data analysis, collecting data from multiple heterogeneous sources.

ACID stands for Atomicity, Consistency, Isolation, and Durability—a set of properties that ensure database transactions are processed reliably.

SQL databases are relational and use structured schemas, while NoSQL databases are non-relational, flexible, and often used for big data.

A database schema is the skeleton structure that represents the logical view of the entire database, including tables, fields, and relationships.

A Primary Key uniquely identifies a record in a table, while a Foreign Key links a record in one table to the Primary Key of another.

Indexes are used to speed up the retrieval of data from a table by providing a faster lookup path for the database engine.

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