A multidatabase system implementation on CORBA

Author

Dogac, A. ; Dengi, C. ; Kilic, E. ; Ozhan, G. ; Ozcan, F. ; Nural, S. ; Evrendilek, C. ; Halici, U. ; Arpinar, B. ; Koksal, P. ; Mancuhan, S.

Author_Institution

Middle East Tech. Univ., Ankara, Turkey

fYear

1996

fDate

26-27 Feb 1996

Firstpage

2

Lastpage

11

Abstract

METU Interoperable DBMS (MIND) is a multidatabase system based on OMG´s distributed object management architecture. It is implemented on top of a CORBA compliant ORB, namely, DEC´s ObjectBroker. In MIND, all local databases are encapsulated in a generic database object. The interface of the generic database object is defined in CORBA IDL and multiple implementations of this interface, one for each component DBMS, namely Sybase, Adabas D and MOOD are provided. MIND provides its users with a common data model and a single global query language based on SQL. The main components of MIND are a global query manager, a global transaction manager, a schema integrator, interfaces to supported database systems and a graphical user interface. The integration of export schemas is currently performed by using an object definition language (ODL) which is based on OMG´s interface definition language. MIND global query optimizer aims at maximizing the parallel execution of the intersite operations of the global subqueries. Through the MIND global transaction manager, the serializable execution of the global transactions (both nested and flat) is provided

Keywords

distributed databases; graphical user interfaces; object-oriented databases; query languages; query processing; transaction processing; CORBA; METU Interoperable DBMS; MIND global query optimizer; MIND global transaction manager; ObjectBroker; SQL; common data model; distributed object management architecture; export schemas; generic database object; graphical user interface; interface definition language; intersite operations; local databases; multidatabase system implementation; object definition language; parallel execution; schema integrator; single global query language; Data models; Database languages; Database systems; Intrusion detection; Mood; Network servers; Object oriented databases; Spatial databases; Trademarks; Transaction databases;

fLanguage

English

Publisher

ieee

Conference_Titel

Research Issues in Data Engineering, 1996. Interoperability of Nontraditional Database Systems. Proceedings. Sixth International Workshop on

Conference_Location

New Orleans, LA

Print_ISBN

0-8186-7289-7

Type

conf

DOI

10.1109/RIDE.1996.492237

Filename

492237