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Information Systems, 1993
Abstract SQL, Structured Query Language, supported by most relational database systems since its introduction by IBM in the mid 1970s, has been widely accepted and has enjoyed much popularity because of its declarativeness and the simplicity of its English-like syntax and semantics. SQL satisfied classical database applications which merely involved
Kemal Koymen, Qujun Cai
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Abstract SQL, Structured Query Language, supported by most relational database systems since its introduction by IBM in the mid 1970s, has been widely accepted and has enjoyed much popularity because of its declarativeness and the simplicity of its English-like syntax and semantics. SQL satisfied classical database applications which merely involved
Kemal Koymen, Qujun Cai
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Die SQL-Norm (The SQL Standard)
it - Information Technology, 2003Zusammenfassung In diesem Artikel geben die Autoren einen Überblick über die neuesten Funktionen der nächsten Version der SQL-Norm (SQL:2003) sowie eine kurze Zusammenfassung der vorhandenen Funktionalität in der aktuell gültigen Norm (SQL:1999) und den früheren Versionen. Zusätzlich wird auf ausgewählte Teile des Standards ausführlicher
Andrew Eisenberg +5 more
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Proceedings of the VLDB Endowment, 2014
Current applications, from complex sensor systems (e.g. quantified self) to online e-markets acquire vast quantities of personal information which usually end-up on central servers. This information represents an unprecedented potential for user customized applications and business (e.g., car insurance billing, carbon tax, traffic decongestion ...
To, Cuong Quoc +2 more
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Current applications, from complex sensor systems (e.g. quantified self) to online e-markets acquire vast quantities of personal information which usually end-up on central servers. This information represents an unprecedented potential for user customized applications and business (e.g., car insurance billing, carbon tax, traffic decongestion ...
To, Cuong Quoc +2 more
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Introduction to SQL, SQL*Plus, and SQL Developer
2009This chapter provides an introduction to the SQL language and two tools for working with it. The first section presents a high-level overview of the SQL language, which will give you an idea of the capabilities of this language. Then some important basic concepts of the SQL language are introduced in the second section, such as constants, literals ...
Lex de Haan +4 more
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SQL-Middleware: Enabling the Blockchain with SQL
2021With the development of blockchain, blockchain has a broad prospect as a new type of data management system. However, limited to the data modeling method of blockchain, the usability of blockchain is restricted; In addition, every blockchain system has its own native but naive interfaces, when developing based on the different blockchain systems, which
Haibo Tang +9 more
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Data & Knowledge Engineering, 1994
Abstract The relational database model is defined in terms of sets, whereas SQL needs the DISTINCT option for explicit duplicate removal. We define the underlying concept of duplicate tuples, generalize the operators of the relational algebra and study the connection with logic. It is shown that ‘baggy’ operators violate classical equivalences.
Kwast, K.L., van Denneheuvel, S.J.
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Abstract The relational database model is defined in terms of sets, whereas SQL needs the DISTINCT option for explicit duplicate removal. We define the underlying concept of duplicate tuples, generalize the operators of the relational algebra and study the connection with logic. It is shown that ‘baggy’ operators violate classical equivalences.
Kwast, K.L., van Denneheuvel, S.J.
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1994
In diesem Kapitel werden die Grundlagen der Datenbanksprache „SQL“ (Structured Query Language) vermittelt.
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In diesem Kapitel werden die Grundlagen der Datenbanksprache „SQL“ (Structured Query Language) vermittelt.
openaire +2 more sources