Alpha-Cells
发表于 2025-3-26 23:32:43
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时代
发表于 2025-3-27 02:56:10
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预防注射
发表于 2025-3-27 09:05:33
Data manipulation languages for the universal relation view DURST,vel of relations. We carefully develop the formal semantics of these languages and we demonstrate their equivalence. We outline the optimization techniques that we use for our implementation of the DURST system on top of the database system INGRES.
inflame
发表于 2025-3-27 11:29:04
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Between
发表于 2025-3-27 15:36:50
0302-9743 y, null values, query processing, complexity theory), and of its extensions (graphical representations, NF2-models), conceptual modelling of distributed database management systems and the relationship between logic and databases.978-3-540-19121-6978-3-540-39124-1Series ISSN 0302-9743 Series E-ISSN 1611-3349
AFFIX
发表于 2025-3-27 19:24:54
Conference proceedings 1988f the two panel discussions is also included. The volume is intended to be a reflection of the current state of knowledge and a guide to further development in database theory. The main topics covered are: theoretical fundaments of the relational data model (dependency theory, design theory, null va
绝种
发表于 2025-3-28 01:57:57
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运气
发表于 2025-3-28 02:31:19
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Ingrained
发表于 2025-3-28 07:33:05
Animated Atmosphereilms are free to create complete abstract environments that extract and exaggerate qualities of the physical world. These environmental choices are invariably atmospheric and aesthetic and work like an all-around version of the sliding backdrop scenery of a theatrical production. this project, locat
Liberate
发表于 2025-3-28 13:31:59
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