EntityQ285861· pop 17· linked from 122 articlesB+ treeSign in to saveB-tree in which each node contains only keys (not key–value pairs), and to which an additional level is added at the bottom with linked leavesConnectionsB-treeEntitytreeEntityk-ary treeEntityInternational Standard Book NumberEntitydatabaseEntityWayback MachineEntitydigital object identifierEntityInternational Standard Serial NumberEntityLibrary of Congress Control NumberEntityOCLC, Inc.EntitygraphEntityfile systemEntitybibcodeEntityOracle DatabaseEntitypseudocodeEntityrelational databaseEntityNTFSEntityMicrosoft SQL ServerEntityheapEntityNoSQL database management systemEntityCategories1972 in computingB-treeComputer-related introductions in 1972Use Oxford spelling from March 2025