5/27/2023 0 Comments Firebird recursive queryTwo main data structures for the representation of graphs are used in practice. In contrast, a graph where the edges have a specific orientation from a node to another is called directed:Ī graph is called complete when there's an edge between any two nodes, dense when the number of edges is close to the maximal number of edges, and sparse when it has only a few edges: When the edges have no orientation, the graph is called an undirected graph. What's a graphĪ graph is a set of nodes (vertices) interconnected by links (edges). Unfortunately, the Tree models/techniques do not apply to generic graphs, so let's discover how we can deal with them. ![]() Given how much attention my talk about storing a tree data structure in the db received, it's probably going to be interesting to many. In this short article, we're going to see how we can store a graph in a DBMS. Social or P2P networks, thesauri, route planning systems, recommendation systems, collaborative filtering, even the World Wide Web itself is ultimately a graph! Given their importance, it's surely worth spending some time in studying some algorithms and models to represent and work with them effectively. ![]() ![]()
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