What is a linked database in Notion?

A linked database in Notion is a dynamic block that displays a live, synchronized view of an existing database without duplicating any of the underlying data. Think of it as creating multiple windows into the same room—you can customize what you see through each window with different filters, sorts, and layouts, but you're always looking at the same core information. This powerful feature enables you to present the same data set in various contexts throughout your workspace while ensuring everything stays perfectly synchronized.

Creating a linked database is refreshingly straightforward. Simply type "/linked" on any Notion page, select "Create linked database," and choose your source database. Once created, you can customize each linked view independently—applying unique filters, choosing different display formats like calendar or kanban boards, and organizing the information to match your specific needs. For example, you might link your master Projects database to a team dashboard showing only active projects in board view, while simultaneously displaying completed projects in table format on a different page.

The real magic happens with real-time synchronization. When you edit data in any linked view or the original database, those changes instantly appear across all other linked instances. This eliminates the headache of managing duplicate information and ensures everyone stays aligned with the most current data. A marketing team can update campaign status in their filtered view, and those changes immediately reflect in the executive dashboard and project timeline.

However, linked databases do come with important limitations you should consider. Each Notion database is capped at 10,000 rows and 50 columns, which can become restrictive for larger operations. More critically, linked databases don't provide row-level or column-level permissions—if someone has access to a linked view, they can potentially access the source database and see all the data, even information you might prefer to keep private. Performance can also slow down significantly as your database approaches those size limits.

Despite these constraints, linked databases excel at creating contextual dashboards and eliminating data silos. They're particularly valuable for teams managing projects, content calendars, or client information where different stakeholders need tailored views of the same underlying data. By centralizing your information while allowing flexible presentation, linked databases help you build more organized, efficient workflows that scale with your needs.