SQL Interview Questions #4: How is data stored in a relational database?

SQL code copied to buffer

Task 4:

Check all the facts describing data storage in a relational database.

Data in RDBMS is organized randomly, without any specific structure.

RDBMS uses a structured query language (SQL) to interact with the data, allowing for querying, inserting, updating, and deleting data.

RDBMS follows the ACID properties (Atomicity, Consistency, Isolation, Durability) to ensure data integrity and reliability.

RDBMS uses indexes to speed up data retrieval by creating pointers to specific data locations within the database.

RDBMS uses a relational model, where data is structured in tables with relationships defined between them using foreign keys.

Data in RDBMS is stored in a hierarchical structure, like a tree.

Data in RDBMS is organized into tables, with rows representing individual records and columns representing attributes or fields.

RDBMS uses a key-value store model, where data is stored as key-value pairs.

Mark all correct answers and click the "Check!" button

Support SQLtest.online

This project has only one funding source: your donations. The monthly maintenance cost is $100.

Last month I added a new MariaDB database with a preloaded University DB, 9 new questions, and refactored many questions and lessons.

With your support, I plan to continue this work: write new lessons and tasks, and improve existing lessons.

To keep the project running next month, we need to collect at least this amount by the end of this month. Anything above it goes to new lessons, exercises, and features.

Received: $29.58 Goal: $100.00

Progress: 30%

Learning SQL: Generate, Manipulate, and Retrieve Data by Alan Beaulieu

As data floods into your company, you need to put it to work right away―and SQL is the best tool for the job. With the latest edition of this introductory guide, author Alan Beaulieu helps developers get up to speed with SQL fundamentals for writing database applications, performing administrative tasks, and generating reports. You’ll find new chapters on SQL and big data, analytic functions, and working with very large databases.

Login

Register