query by example

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query by example

[′kwir·ē bī ig′zam·pəl]
(computer science)
A software product used to search a data base for information having formats or ranges of values specified by English-like statements that indicate the desired results. Abbreviated QBE.

Query By Example

(database, language)
(QBE) A user-friendly query language developed by Mosh? Zloof of IBM in 1975.


[Mosh? M. Zloof, "Query By Example", AFIPS NCC 1975: 431-438].

[Mosh? 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].

query by example

A method for describing a database query originally developed by IBM for mainframes. A replica of an empty record is displayed and the search conditions are typed in under their respective columns (fields). This visual approach has been adopted by nearly every modern query program. Although there are differences from one to another with regard to expressing complicated queries, everything is selected from a menu by the user. The program turns the visual query into the command language, such as SQL, necessary to interrogate the database.

Query By Example (QBE)
This query selects all Pennsylvania records that have a balance due of $5000 or more.
References in periodicals archive ?
This new release also has ease-of-use improvements, including a query-by-example tool.
From the Budget field list, drag the asterisk (*) to the Field line in the query-by-example (QBE) grid.
These systems use syntactic features as the basis for matching and employ either Query-by-Example or Query-through-dialog box to interface with the user.
Oracle AERS includes a powerful query-by-example module that allows users to mine and visualize data through inquiries utilizing multiple case data elements.
The open database design also supports on-demand, query-by-example custom reports and exports to third-party tools using open database connectivity standards.
Most applications built on relational databases incorporate a querying tool known as query-by-example (QBE), which uses a graphical approach to construct queries.
Using Paradox's Query-by-Example, the system allows the user to enter an example of what he wants to see.
If the names of the fields used in your query are the same as the fields in the target table, the Append To line in the query-by-example (QBE) grid will show the field names.
For power users, Query Builder simplifies ad-hoc queries by using familiar query-by-example techniques.
Advanced search capabilities -- concept and keyword searching, pattern searching, and query-by-example -- can be used independently or interactively to enable the highest levels of accuracy.
Below this is a query-by-example (QBE) grid that can be used to build the query (see Figure 1).
Advanced search capabilities that can be used independently or interactively to enable the highest levels of accuracy include concept and keyword searching, pattern searching, and query-by-example.