Francois Bancilhon, Claude Delobel, and Paris Kanellakis. Building an Object-Oriented Database System: The Story of O2. The Morgan Kaufmann Series in Data Management Systems, May 1992.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....features of databases, such as concurrency control, recovery, and security, while retaining support for the rich data types and semantics of object oriented languages. Examples of systems that have followed this approach include research prototypes such as [16] and a number of commercial products [7, 66]. The object relational database (ORDBMS) systems, on the other hand, approach the problem of adding additional data types by extending the existing relational model with the full blown type hierarchy of object oriented languages. The key observation was that the concept of domain of an attribute ....

....collections inside attributes. a) The co location approach (b) The side table approach. A study on the implementation of ADTs comparing several variations of approaches 3 and 4 can be found in [39] Storage management of rich data types has also been addressed by object oriented databases [7, 66]. Another important problem in ORDBMSs that is relevant to image retrieval is the management of collection type attributes. An example of such an attribute is the polygonal contour shape descriptor (represented by the corner points, the number of which can vary from shape to shape) Such ....

Francois Bancilhon, Claude Delobel, and Paris Kanellakis. Building an Object-Oriented Database System: The Story of O2. The Morgan Kaufmann Series in Data Management Systems, May 1992.

....are used to this end, while in EER based systems updates have to be broken down to elementary operations for delet ing inserting changing single entities relationships attributes. Note that this statement also applies to database systems which are based on an object oriented data model (e.g. O2 [31] and Objectstore [32] Process management systems such as PROCESS WEAVER [12] MELMAC [33] and SPADE [34] are based on different variants of Petri nets. A process is modeled as a hierarchical collection of Petri nets. To prepare execution, a template is copied and populated with tokens. ....

Francois Bancilhon, Claude Delobel, and Paris Kannelakis, editors. Building an Object-Oriented Database System: The Story of 02. Morgan Kaufmann, San Mateo, California, 1992.

....are used to this end, while in EER based systems updates have to be broken down to elementary operations for delet ing inserting changing single entities relationships attributes. Note that this statement also applies to database systems which are based on an object oriented data model (e.g. O2 [31] and Objectstore [32] Process management systems such as PROCESS WEAVER [12] MELMAC [33] and SPADE [34] are based on different variants of Petri nets. A process is modeled as a hierarchical collection of Petri nets. To prepare execution, a template is copied and populated with tokens. ....

Francois Bancilhon, Claude Delobel, and Paris Kannelakis, editors. Building an Object-Oriented Database System: The Story oj 02. Morgan Kaufmann, San Mateo, California, 1992.

.... offering significantly increased data modeling capabilities, but moved back to a procedural query language, and shifted the access optimization problem back to the user [Ull88] There has been a lot of work done on object oriented databases, and several systems have reached the marketplace [MSOP86, WLH90, AG89, Cat91, BDK92, OHMS92]. Most of the object oriented systems have attempted to provide a declarative SQL like query language: OSQL in IRIS [WLH90] CQL in ODE [DGJ92] the O 2 query language in O 2 [BDK92] and XSQL in UniSQL [KKS92] However no more general query language has been defined, and there is a general ....

.... on object oriented databases, and several systems have reached the marketplace [MSOP86, WLH90, AG89, Cat91, BDK92, OHMS92] Most of the object oriented systems have attempted to provide a declarative SQL like query language: OSQL in IRIS [WLH90] CQL in ODE [DGJ92] the O 2 query language in O 2 [BDK92], and XSQL in UniSQL [KKS92] However no more general query language has been defined, and there is a general feeling that objectoriented systems cannot have a declarative query language [Ull91] This research was supported in part by NSF grant IRI 9209029, and by a grant from the AT T ....

Francois Bancilhon, Claude Delobel, and Paris Kanellakis. Building an Object-Oriented Database System: The Story of O 2 . Morgan Kaufmann, Washington D.C., 1992.

....of St. Andrews. Research on orthogonal persistence has also been carried out by researchers at the University of Adelaide [Dearle 92, Koch 91, Crawley 91] Some other recent systems to use orthogonal persistence are the Alltalk system [Mellender 89, Straw 89, Riegel 88] the O 2 system [Bancilhon 92, Deux 91] the c ( psi ) persistence programming language [Sajeev 92] and the Alex persistent architecture [Crawley 91] Encapsulation, abstraction and reuse are among the advantages associated with the advent of OO programming languages and OO database management systems (OODBMS) Meyer 88, ....

Francois Bancilhon, Claude Delobel, and Paris Kanellakis (Eds.). Building an Object-Oriented Database System: The Story of O 2 , Morgan Kaufmann, CA, 1992.

....for the description of the image content of coins in the spirit of ICONCLASS [6] a method for indexing paintings and pictures. A prototypical application based on the new classification algorithm and database schema was implemented using the C binding of the object oriented database system O 2 [7]. The core implementation, i.e. the database schema together with the quoting algorithm, is aiming at a high degree of flexibility. Due to its object oriented nature our application can easily be extended to support the classification of further coin types, e.g. modern coins. Few technologies have ....

Francois Bancillhon, Claude Delobel, and Paris Kanellakis, editors. Building a Object-Oriented Database System: The Story of O 2 . Morgan Kaufmann, 1992.

....the description of the image content of coins in the spirit of ICONCLASS [vR94] a method for indexing paintings and pictures. A prototypical application based on the new classification algorithm and database schema was implemented using the C binding of the object oriented database system O 2 [BDK92] The core implementation, i.e. the database schema together with the quoting algorithm, is aiming at a high degree of flexibility. Due to its object oriented nature our application can easily be extended to support the classification of further coin types, e.g. modern coins. Few technologies ....

Francois Bancillhon, Claude Delobel, and Paris Kanellakis, editors. Building a Object-Oriented Database System: The Story of O 2 . Morgan Kaufmann, 1992.

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