Avaliação de mecanismos para acesso a bancos de dados heterogeneos atraves da WEB

AUTOR(ES)
DATA DE PUBLICAÇÃO

2001

RESUMO

The World Wide Web is currently considered the ideal technological platform for the development of applications on the Internet and corporate intranets. In the majority of the cases, such applications access relational DBMSs. The current CGI standard is very inefficient under periods of heavy workload on the Web server. The nature of the access to DBMSs through the WWW is quite different from the traditional database applications. The basic difference is in the stateless characteristic of the HTTP protocol. The user session concept, found in traditional database applications, does not apply on the WWW. This dissertation compares some open source APIs used to access heterogeneous databases. These APIs have often been used for the development of statefuI database applications in the context of the Web. In these architectures, a persistent connection pool is used in order to eliminate the cost of establishing new connections to the DBMSs. The performance gain is assessed through a series of measurements in which we emulate the traffic caused by several concurrent HTTP clients. The APIs assessed were: Java Servlet (JDBC), Perl (DBI) and Python (Database API)

ASSUNTO(S)

banco de dados relacionais world wide web (sistema de recuperação da informação) linguagem de programação (computadores) java (linguagem de programação)

ACESSO AO ARTIGO

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