QBE Theory
QBE may refer to: * QBE Insurance, a multinational insurance company * Query by Example, devised by Moshé M. Zloof at IBM Research during the mid-1970s *Microsoft Query by Example Microsoft Query is a visual method of creating database queries using examples based on a text string, the name of a document or a list of documents. The QBE system converts the user input into a formal database query using Structured Query Lan ...

QBE Insurance
QBE Insurance Group Limited is a general insurance and reinsurance company listed on the Australian Securities Exchange and headquartered in Sydney. The company employs more than 11,700 people in over 27 countries. Across its operations, QBE offers commercial, personal and specialty products and risk management products. History QBE was founded in 1886 as the North Queensland Insurance Co in Townsville, Queensland by two Scottish migrants, James Burns and Robert Philp, founders of shipping company Burns Philp to insure its ships. QBE was listed on the Australian Securities Exchange in 1973 from the merger of three companies whose names represent the letters of the combined company, Queensland Insurance, Bankers' and Traders' Insurance Company, and Equitable Life and General Insurance Co., and its founding chairman was J.D.O. Burns. Since then, QBE has continued to acquire many companies. In 1999 it purchased a 50% shareholding in Mercantile Mutual. In 2004 it purchased the othe ...
[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  

Query By Example
Query by Example (QBE) is a database query language for relational databases. It was devised by Moshé M. Zloof at IBM Research during the mid-1970s, in parallel to the development of SQL. It is the first graphical query language, using visual tables where the user would enter commands, example elements and conditions. Many graphical front-ends for databases use the ideas from QBE today. Originally limited only for the purpose of retrieving data, QBE was later extended to allow other operations, such as inserts, deletes and updates, as well as creation of temporary tables. The motivation behind QBE is that a parser can convert the user's actions into statements expressed in a database manipulation language, such as SQL. Behind the scenes, it is this statement that is actually executed. A suitably comprehensive front-end can minimize the burden on the user to remember the finer details of SQL, and it is easier and more productive for end-users (and even programmers) to select t ...
[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]