Database Structures and Characteristics

The video tutorial by Tech G covers various database structures, including structured, semi-structured, and non-structured databases. It explains relational and non-relational databases, highlighting their characteristics, uses, and differences. The tutorial also discusses data formats like XML and JSON, and the role of SQL in relational databases. Key concepts such as schema, tables, keys, and constraints are explored, along with non-relational database types like key-value and document databases. The session concludes with a review of learning through questions.

What are the three types of database structures discussed in the video?

• Structured, Semi-Structured, Non-Structured

• Hierarchical, Network, Object-Oriented

• Flat, Relational, Non-Relational

• SQL, NoSQL, NewSQL

Which type of data is organized in rows and columns?

• Non-Structured

• Document

• Structured

• Semi-Structured

What is a common format for semi-structured data?

• XML

• Binary

• CSV

• SQL

Which of the following is a characteristic of non-structured data?

• Organized in tables

• Contains tags for hierarchy

• Uses SQL for queries

• Typically text-heavy

What language is typically used to access relational databases?

• Python

• SQL

• HTML

• JavaScript

Which type of database is designed to handle large volumes of unstructured data?

• Network

• Non-Relational

• Hierarchical

• Relational

What is a key feature of a document database?

• Requires SQL for data retrieval

• Stores data as documents

• Stores data in rows and columns

• Uses a fixed schema

Which type of database is known for its flexibility in handling data changes?

• Relational

• Non-Structured

• Semi-Structured

• Structured

What is a primary key in a relational database?

• A unique identifier for each row

• A default value for a column

• A foreign key in another table

• A composite key

Which database type is often referred to as a flat file database?

• Hierarchical

• Relational

• Non-Relational

• Network