Data Virtualization — IT Glossary | ITU Online IT Training
+1 855.488.5327 customerservice@ituonline.com Mon – Fri: 9:00am – 5:00pm ET

Data Virtualization

Commonly used in Networking, General IT

Ready to start learning?Individual Plans →Team Plans →

Data virtualization is a technology that allows users to access and manipulate data from multiple, diverse sources as if they were a single, unified dataset, without physically moving or copying the data. It provides a real-time, abstracted view of data stored across different systems, formats, or locations.

How It Works

Data virtualization works by creating a virtual layer that sits above the various data sources. This layer uses metadata and data integration tools to connect to different databases, data warehouses, cloud storage, or other repositories. When a user requests data, the virtualization platform translates the query into commands that are understood by each source, retrieves the relevant data in real time, and combines it into a cohesive view. This process often involves data federation, query optimization, and caching to improve performance. Importantly, data is not duplicated or moved; instead, the virtualization layer acts as a dynamic bridge, providing access to the latest data directly from its source.

Common Use Cases

  • Real-time analytics across multiple data sources without data replication.
  • Providing a unified view of customer data from CRM, ERP, and social media platforms.
  • Data integration for business intelligence dashboards that pull from diverse databases.
  • Enabling data access for cloud applications that need to connect to on-premises systems.
  • Supporting data governance and compliance by controlling access to multiple data sources through a single interface.

Why It Matters

Data virtualization is important for IT professionals and organizations seeking to improve data agility and reduce costs associated with data duplication. It allows for faster decision-making by providing immediate access to integrated data without the delays of data replication or migration. For those pursuing certifications in data management or business intelligence, understanding data virtualization is essential, as it represents a modern approach to data integration and access. It also plays a critical role in enabling hybrid cloud strategies, supporting data governance, and facilitating real-time analytics, making it a valuable skill for data architects, analysts, and IT managers.

Ready to start learning?Individual Plans →Team Plans →
Discover More, Learn More
What Is a Cybersecurity Vulnerability Database? Discover how a cybersecurity vulnerability database enhances threat intelligence, streamlines risk management,… What Is a Cloud Database? Discover the essentials of cloud databases, including benefits, use cases, and implementation… What Is a Distributed Database? Discover the essentials of distributed databases, including architecture, benefits, and challenges, to… What Is an External Database? Learn what an external database is, how it functions, and when to… What Is a Hierarchical Database? Discover the fundamentals of hierarchical databases, their structure, benefits, and use cases… What Is a Time Series Database? Discover what a time series database is and learn how it optimizes…