The Development of Ordered SQL Packages in Peer-to-Peer Data Warehousing Environments

Advances in Database Research - Advanced Topics in Database Research, Volume 2 ◽

10.4018/978-1-59140-063-9.ch005 ◽

2011 ◽

pp. 72-103

Author(s):

Wilfred Ng ◽

Mark Levene

Keyword(s):

Data Warehousing ◽

Effective Means ◽

Dynamic Environment ◽

Peer To Peer ◽

Relational Model ◽

Wide Range ◽

Peer Network ◽

Partial Orderings ◽

Data Content ◽

Peer To Peer Network

This chapter discusses how the capabilities of database languages are enhanced to manipulate user-defined data orderings within the framework of the Ordered Relational Model (the ORM), which incorporates partial orderings into data domains. The motivation for applying the ORM in data warehousing environment is that business queries in an enterprise usually involve order. We have already defined and implemented Ordered SQL (OSQL), which allows users to capture the underlying semantics of the ordering of the data for a given application. Herein we demonstrate that OSQL aided with a package discipline can be an effective means to manage the inter-related operations and the underlying data domains of a wide range of advanced applications that are vital in data warehousing, such as temporal, incomplete, and fuzzy information. We also discuss the employment of OSQL system with three packages of OSQL_TIME, OSQL_INCOMP, and OSQL_FUZZY over a Peer-to-Peer network. Using our suggested framework, the data content of a data warehouse can be better adapted in a dynamic environment.

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The Development of Ordered SQL Packages to Support Data Warehousing

Data Warehousing and Web Engineering ◽

10.4018/978-1-931777-02-5.ch018 ◽

2011 ◽

pp. 285-311

Author(s):

Wilfred Ng ◽

Mark Levene

Keyword(s):

Data Warehouse ◽

Relational Databases ◽

Corporate Strategy ◽

Data Warehousing ◽

Effective Means ◽

Relational Model ◽

Minimal Extension ◽

Wide Range ◽

Partial Orderings ◽

Advanced Applications

Data warehousing is a corporate strategy that needs to integrate information from several sources of separately developed Database Management Systems (DBMSs). A future DBMS of a data warehouse should provide adequate facilities to manage a wide range of information arising from such integration. We propose that the capabilities of database languages should be enhanced to manipulate user-defined data orderings, since business queries in an enterprise usually involve order. We extend the relational model to incorporate partial orderings into data domains and describe the ordered relational model. We have already defined and implemented a minimal extension of SQL, called OSQL, which allows querying over ordered relational databases. One of the important facilities provided by OSQL is that it allows users to capture the underlying semantics of the ordering of the data for a given application. Herein we demonstrate that OSQL aided with a package discipline can be an effective means to manage the inter-related operations and the underlying data domains of a wide range of advanced applications that are vital in data warehousing, such as temporal, incomplete and fuzzy information. We present the details of the generic operations arising from these applications in the form of three OSQL packages called: OSQL_TIME, OSQL_INCOMP and OSQL_FUZZY.

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Blockchain Beyond Cryptocurrency: Non-Fungible Tokens

10.36880/c13.02527 ◽

2021 ◽

Author(s):

Burcu Sakız ◽

Ayşen Hiç Gencer

Keyword(s):

Business Models ◽

Disruptive Innovation ◽

Peer To Peer ◽

Smart Contracts ◽

Blockchain Technology ◽

Wide Range ◽

Peer Network ◽

Work Mechanism ◽

Distributed Networking ◽

Peer To Peer Network

Blockchain technology is a disruptive innovation with the potential to replace existing business models that rely on centralized systems and third parties for trust. Even if there are a lot of application areas, blockchain used primarily for cryptocurrencies. Satoshi Nakamoto implemented the first blockchain application and invented the world’s first digital currency which is named as Bitcoin in 2008. Fundementally Bitcoin relies on cryptographic “proof of work” mechanism, digital signatures, and peer to peer distributed networking layer in order to provide a distributed ledger holding transactions. In 2014, a second generation of blockchains allow to program and execute them over distributed networks such as Ethereum project. The code to program any asset stored in blockchain’s peer-to-peer network is called as "smart contract" and smart contracts gives a powerful tool to developers for decentralized applications. There are various types of tokens that anyone can built on top of Ethereum and by combining smart contracts and new tokens, this paved the way of possibility to build a wide range of decentralized projects. One of the disruptive blockchain based innovation impacting intellectual property is called non-fungible-tokens or NFTs firstly introcuced in late 2017 on Ethereum network. This research contends that blockchain and non-fungible tokens (NFTs) which are cryptographically unique, scarce, non-replicable digital assets created through smart contracts and provably digital collectible assets. Our objective is to give NFT taxonomy, review NFT platforms and discuss technical challenges as well as recent advances in tackling the challenges. Moreover, this paper also aims to point out the future directions for NFT technology.

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Survey on Surging Technology: Cryptocurrency

International Journal of Engineering & Technology ◽

10.14419/ijet.v7i3.12.16045 ◽

2018 ◽

Vol 7 (3.12) ◽

pp. 296 ◽

Cited By ~ 1

Author(s):

Swathi Singh ◽

Suguna R ◽

Divya Satish ◽

Ranjith Kumar MV

Keyword(s):

Electronic Commerce ◽

Transaction Costs ◽

Hash Functions ◽

Peer To Peer ◽

Digital World ◽

Wide Range ◽

Peer Network ◽

Digital Money ◽

Peer To Peer Network ◽

Cryptographic Hash Functions

The paper gives an insight on cryptography within digital money used in electronic commerce. The combination of digital currencies with cryptography is named as cryptocurrencies or cryptocoins. Though this technique came into existence years ago, it is bound to have a great future due to its flexibility and very less or nil transaction costs. The concept of cryptocurrency is not new in digital world and is already gaining subtle importance in electronic commerce market. This technology can bring down various risks that may have occurred in usage of physical currencies. The transaction of cryptocurrencies are protected with strong cryptographic hash functions that ensure the safe sending and receiving of assets within the transaction chain or blockchain in a Peer-to-Peer network. The paper discusses the merits and demerits of this technology with a wide range of applications that use cryptocurrency.

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