Implementace informačního systému v prostředí XQuery

Abstract

The purpose of this study is to compare performance of the information system implemented in Xquery language compared to classic relational database systems. In the first chapter there is common description of XML format and its usage as a database. Next part describes XQuery language as an alternative to relational databases and its implementation in this system. Next, there is a chapter where are introduced database systems, which are used in this study testing: Oracle, Microsoft SQL Server, Firebird, SQLite, MySQL, PostgreSQL, Microsoft Access and DB2. BaseX and Sedna Native Database are used as native databases in this study. The outcome of the performed study is to compare time-consuming operations such as backup of thousands records, comparing response time of each system when READ/WRITE operations are executed, and at the end comparing of speed of the queries from the simple ones to the more complicated ones.