(1) The branch of mathematics that deals with relations; for example, AND, OR, NOT, IS and CONTAINS.
(2) In a relational database, a collection of rules for dealing with tables; for example, JOIN, UNION and INTERSECT.
(2) In a relational database, a collection of rules for dealing with tables; for example, JOIN, UNION and INTERSECT.
 | Reproduced with permission from Computer Desktop Encyclopedia. Copyright (c) 1981-2009 The Computer Language Company Inc. All rights reserved. |
Additional Resources
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