2 research outputs found
A Demo of Query Languages for Temporal Databases
CĂlem tĂ©to práce je vytvorit aplikaci pro prepojenĂ odlišnĂch prĂstupu k temporalnĂm datam. HlavnĂ myšlenkou je umoĹľniĹĄ uĹľĂvateli práci s pouĹľitĂm jazyka TSQL2 nebo ATSQL bez nutnosti zásahu uĹľĂvatele do relaÄŤnĂho databázovĂ©ho systĂ©mu. RovneĹľ tak je souÄŤastĂ práce implementace rozhranĂ JDBC a demonstraÄŤnĂ aplikace pro testovanĂ temporálnĂch dotazu.The aim of this work is to create an application for interconnect diferrences among temporal databases. The main idea of this project is allow user work with languages TSQL2 and ATSQL without user intervention into relation database system. This work also contain implementation of interface JDBC and demonstration application for testing temporal queries.
Processor of TSQL2 on Post-Relational Databases in Oracle Database
StĹ™edem zájmu tĂ©to práce jsou temporálnĂ databáze a jejich multimediálnĂ a prostorovĂ© rozšĂĹ™enĂ. V Ăşvodu práce jsou shrnuty vĂ˝sledky vĂ˝zkumu v oblasti temporálnĂch databázĂ, jsou pĹ™edstaveny základnĂ koncepty jazyka TSQL2 a postrelaÄŤnĂ rozšĂĹ™enĂ databáze Oracle. Stěžejnà částĂ Â práce je návrh interpretu jako vrstvy mezi uĹľivatelskou aplikacĂ a relaÄŤnĂ databázĂ. Práce se dále zabĂ˝vá kontrolou integritnĂch omezenĂ v temporálnĂ databázi a navrhuje jejĂ realizaci. VĂ˝stupem práce je funkÄŤnĂ interpret jazyka TSQL2, kterĂ˝ je schopnĂ˝ ukládat postrelaÄŤnĂ data.This thesis focuses on temporal databases and their multimedia and spatial extensions. The introduction of this work summarizes results in the area of research of temporal databases - key concepts of a TSQL2 language and post-relational extension of Oracle database are introduced. Main part of the thesis is design of an interpreter as a layer between user application and relational database.  In the next part of the thesis control of integrity constraints in temporal databases are discussed. Result of this work is functional interpreter of TSQL2 language able to store post-relational data.