System for extracting historical market information with condition and attributed windows

摘要: A computerized data retrieval system, especially for commodity price information databases, having a windowing system which aids user in creating and revising formal search language queries, database searching engine responsive to such means generate format results both textual graphic reports, capacity echoing query display near-natural easy comprehension by the as is constructed using system. The has facilities including domain knowledge query, market of calendar events, national holidays, triple-witching hours, option contract expiration dates. additional that permit include more fundamental knowledge, dates political elections, date issuance value company earning consumer index, so on. may be created revised either through or with text editor.