Nodes, relationships, properties, Cypher query basics, traversals and graph modeling use cases.
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- What is a node in a graph database?
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A fundamental data structure representing an entity or object in the graph- What is a relationship in a graph database?
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A connection or edge between two nodes representing how entities are associated- What is a property in a graph database?
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A key-value pair storing attributes or metadata about a node or relationship- What does it mean to label a node in Neo4j?
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To assign a category or type to a node, written as :LabelName- Can a single node in Neo4j have multiple labels?
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Yes, a node can have multiple labels to represent multiple categories- What is a directed relationship?
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A relationship with a specific direction, flowing from one node to another- Can Neo4j store properties on relationships?
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Yes, relationships can have properties just like nodes- What is Cypher?
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A declarative query language designed for Neo4j to work with graph data- What does the MATCH clause do in Cypher?
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Specifies a pattern to search for in the graph- What does the WHERE clause do in Cypher?
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Filters matched results by applying conditions- What does the RETURN clause do in Cypher?
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Specifies which data to return from the query result- What does the CREATE clause do in Cypher?
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Creates new nodes or relationships in the graph- What does the SET clause do in Cypher?
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Sets or updates properties on existing nodes or relationships- What does the DELETE clause do in Cypher?
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Removes nodes and relationships from the graph- What does the MERGE clause do in Cypher?
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Creates a node or relationship if it does not exist, or updates it if it does
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