How Structured data & Semi structured data differ

Question

Are Social media users and followers in a graph database structured data or semi structured data?

Answer 1

In a graph database, social media users and followers are modeled as structured data.

Reasoning:

• A graph database uses a well-defined data model: nodes (entities), edges (relationships), and properties (key-value pairs).
• In a social network graph:
  • Each user is typically a node (for example, a Person node with properties like firstName, lastName, age).
  • The follower/following relationship is an edge (for example, FRIENDS_WITH or FOLLOWS) connecting two user nodes, possibly with properties (such as since date).
• This is a structured representation because the types of nodes, edges, and properties follow a consistent schema or schema-optional model, even if not all properties are present on every node.

Semi-structured data, by contrast, is typically represented in formats like JSON, where fields can vary between records and the schema is not strictly enforced by the storage engine. Graph databases can ingest semi-structured sources, but once data is stored as nodes and edges with properties, it is treated as structured graph data.

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References:

• What is a graph database?
• Graph and relational database comparison
• Model semi-structured data
• Tutorial: Index nested JSON blobs from Azure Storage using REST