Query By Example
<database, language> (QBE) A
user-friendly query language developed by Moshé Zloof of
IBM in 1975.
(http://www.informatik.uni-trier.de/~ley/db/indices/a-tree/z/Zloof:Mosh=eacute=_M=.html).
[Moshé M. Zloof, "Query By Example", AFIPS NCC 1975: 431-438].
[Moshé M. Zloof, "Query-by-Example: A Data Base Language", IBM Systems Journal 16(4): 324-343, 1977].
["QBE/OBE: A Language for Office and Business Automation", M.M. Zloof, Computer pp.13-22, May 1981].
