第8卷‧第11期,
198011
, pp. 999-1006
QL/I: 一個DL/I資料庫的查改系統
- 作者:
劉振漢; 郭久華
- 作者服務機構:
國立交通大學計算機科學研究所
- 中文摘要:
本論文敘述一個新設計發展出來的資料庫查改系統。此系統可以運用到任何以 IBM 370 的DL/I 為基礎的資料庫,在終端機上查詢和更改資料庫內儲存的資料。我們將此系統定名為 QL/I(Query Language/one)系統。沒有 QL/I 的資料庫,資料的任何查詢和更改都必須透過一個或數個程式,非常不方便。有了 QL/I,可以在終端機上,以交談的方式隨時查詢和更改任何資料庫內資料,然而日常大量資料的更新和報表的印製,仍以個別程式執行效率較高。QL/I 主要的功能是將原來要花一兩天的偶發性的查政作業,縮減為一兩分鐘的工作,對原來的系統是很重要的改進。
- 英文摘要:
This paper presents the development of adatabase inquiry and update system. It operatesin the environment of IBM 370 DB/DC onlinesystem, which is a combination of DL/I (DataLanguage/one) system and CICS (CustomerInformation Control System) System. Our systemis named QL/I (Query Language/one) System.On a DL/I+CICS System, any inquiry or updateon a database requires the coding of a program,most probably in COBOL. This is very une-conomical in terms of time and man power.With QL/I one can at any time sit at a terminaland interactively has access to any database.However, the routine operations of large volumesof updates and reports still rely on the programsfor efficiency. The main function of QL/I isto cope with casual inquiries. A casual inquirywhich originally takes one or two days to getdone may only take one or two minutes withQL/I System. This certainly is a significantimprovement on the original system.
- 中文關鍵字:
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- 英文關鍵字:
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