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Figure 1 | Journal of Applied Volcanology

Figure 1

From: Global database on large magnitude explosive volcanic eruptions (LaMEVE)

Figure 1

Conceptual diagram showing the current structure of the LaMEVE database. All the tables are linked via a one-to-many relationship whereby a single record in the parent table can relate to zero, one or many records in the child table. In instances where there is a many-to-many relationship between entities, this is resolved by using a linking table with a one-to-many relationship to each of the two entities. Dictionaries act as look-up tables for codes used in the main and other entities.

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