Index[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] da Vinci, Leonardo Darwen, Hugh 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th data independence 2nd 3rd 4th data model database collection of propositions logical system versus DBMS database administrator database constraint 2nd checked immediately the (total) database constraint database management system versus database database statistics Date, C. J. 2nd 3rd 4th DBA DBMS DCO declarative degree relation 2nd relvar tuple DELETE expansion via cursor (SQL) denormalization dependency dependency preservation derived relation difference 2nd direct image disjoint union (D_UNION) distributivity divide 2nd DIVIDEBY domain 2nd 3rd "domain check override" double underlining duplicates 2nd 3rd in SQL tables not in relations 2nd durability dyadic predicate |