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| English | Russian |
| B+ tree | дерево B+ (A B-tree in which data are stored in the leaves. B+ trees (B plus trees) make it possible to easily search, insert, delete and access data) |
| B-tree | сбалансированное дерево (A tree structure for storing database indexes) |
| heap or B-tree | куча или сбалансированное дерево (A table structure whose index configuration can be either a heap or a b-tree. Rori) |