Data Management Systems Quiz

Structured Data

• Has a fixed and predefined format, typically organized in rows and columns similar to a table.
• Examples include spreadsheets and databases, where each field is clearly defined.

Language for Manipulating Structured Data

• SQL (Structured Query Language) is predominantly used to manipulate structured data.
• Allows users to create, read, update, and delete data in relational database systems.

Semi-Structured Data

• Contains some organizational properties but lacks the strict schema of structured data.
• Examples include JSON, XML, and HTML documents, where data is organized but not in a rigid format.

Relational Databases

• Commonly store structured data, using a format that facilitates efficient data retrieval and manipulation.
• Examples include MySQL, PostgreSQL, and Oracle, which use tables to represent entities and relationships.

Data Management System (DMS)

• Manages data storage, retrieval, and organization, ensuring data integrity and security.
• Can refer to various types of systems, including databases and data warehouses, which help manage large amounts of data effectively.

Quiz: Data Management Systems 1. What is a Data Management System (DMS)? a) A software for managing data b) A hardware for storing data c) A network for sharing data d) An algorithm for analyzing data Answer: a) A software for managing data