Description: The ‘Node Query’ is a method used in databases to retrieve specific nodes based on criteria defined by the user. This approach is particularly relevant in hierarchical databases and in data structures that use graphs, where nodes represent entities and the connections between them represent relationships. The query is performed by specifying conditions that the nodes must meet, allowing users to filter and access relevant information efficiently. Node queries are fundamental for data manipulation and retrieval in systems that require a non-linear structure, facilitating navigation and analysis of complex relationships between data. This method can be implemented through specific query languages, such as SQL for relational databases or graph query languages like Cypher for graph-oriented databases. The ability to perform node queries effectively is crucial for the performance of applications that rely on data interconnection, enabling developers and analysts to gain valuable insights from large volumes of interrelated information.
