Titlebook: Nested Relations and Complex Objects in Databases; S. Abiteboul,P. C. Fischer,H. -J. Schek Conference proceedings 1989 Springer-Verlag Ber

只看該作者 · 發(fā)表于 2025-3-27 00:14:35

Rudi Studer,Stefan B?rnerojedes, Barinas, Apure and Portuguesa in the Venezuelan Llanos and in the states of Lara, Falcon, Anzoategui, and Trujillo in the semi-arid life zones of the country. The main arrangements promoted are living fences, scattered trees in pastures, trees in rows, grazing in tree plantations and intensi

只看該作者 · 發(fā)表于 2025-3-27 02:10:09

只看該作者 · 發(fā)表于 2025-3-27 06:41:26

只看該作者 · 發(fā)表于 2025-3-27 12:19:04

只看該作者 · 發(fā)表于 2025-3-27 16:25:11

只看該作者 · 發(fā)表于 2025-3-27 17:51:44

只看該作者 · 發(fā)表于 2025-3-27 22:00:21

只看該作者 · 發(fā)表于 2025-3-28 02:54:28

Recursively defined complex objects,ns. The basic idea is to allow for generalized, . definitions for complex object . which can be integrated in a high-level programming language type system..The underlying ‘recursive’ complex objects model allows for powerful and flexible means of representing hierarchically structured objects in an

只看該作者 · 發(fā)表于 2025-3-28 09:41:35

Query languages for Nested Relational Databases,y to exploit the power of this model. First, formal query languages are considered: a relational calculus defining the desired power of nested relational languages, and a relational algebra that provides a procedural language suitable for query optimization. Next, two higher-level languages are disc

只看該作者 · 發(fā)表于 2025-3-28 14:28:30

		自動登錄	找回密碼
密碼			To register

關于派博傳思			派博傳思旗下網(wǎng)站			友情鏈接
派博傳思介紹	公司地理位置	論文服務流程	影響因子官網(wǎng)	吾愛論文網(wǎng)	大講堂	北京大學	Oxford Uni.	Harvard Uni.
發(fā)展歷史沿革	期刊點評	投稿經(jīng)驗總結	SCIENCEGARD	IMPACTFACTOR	派博系數(shù)	清華大學	Yale Uni.	Stanford Uni.
\|Archiver\|手機版\|小黑屋\| 派博傳思國際 ( 京公網(wǎng)安備110108008328) GMT+8, 2025-10-5 06:49
Copyright © 2001-2015 派博傳思京公網(wǎng)安備110108008328 版權所有 All rights reserved