ORDBMS Comparative Report

8/9/2019 ORDBMS Comparative Report

1/10

Erawat Chamanont

Postgraduate Software Engineering Student

University of Sunderland

[email protected]


2/10

Object/Relational DBMSy Major Object Database Vendors

y Oracley PostgreSQL

y Db4o

y The comparison will take three criteria which following:y Usabilityy Performance

y Security


3/10

Usabilityy Ease of Installation

y Oracle takes amount of time to install

y

PostgreSQL easy and quick according to its documentation,no admin right required

y Db4o - just place in a library part of a application as APIlibrary

y Features

y Oracle full supports relational and object-relational features

y PostgreSQL full supports for foreign keys, joins, views,triggers, and stored procedures and objects

y Db4o .NET and Java, client centric, support O/R features


4/10

Usability Cont.y Documentation

y Oracle provides fully documentations in different levels ofusers e.g. DBA, Developer, or End-User

y PostgreSQL provides clear and complete documentations

y Db4o less documentation and example compared to Oracleand PostgreSQL

y Support

y Oracle provides commercial support

y PostgresSQL mailing-list, IRC and commercial support fromexternal companies

y Db4o forum driven by community and commercial support


5/10

Performancey Query Optimisation

y Oracle provides Oracles optimiser.

y PostgeSQL provides Genetic Query Optimizationy Db40 provides SODA query API which db4o's low

level querying API

y Index

y Oracle supports several indexing schemes e.g. B-tree,B-tree cluster, Bitmap indexes

y PostgeSQL support B-Tree, R-tree, Hash, and GiST

y Db4o Provides index fields


6/10

Securityy UserManagement

y Oracle privileged user control

y PostgreSQL using the concept ofrolesy Db40 application manage (Java or .NET)

yAccess Control

y Oracle multi-levels security, row and column level

security , based on classification, user privilege controly PostgresSQL access privilege, multi-level security e.g.

table, column, function

y Db4o - code access permission (Java or .NET)


7/10

Security Cont.y Encryption

y Oracle Transparent data encryption, Backup

encryption, Encryption For Data In Transity PostgreSQL - offers encryption at several levels e.g.

Password Storage, Specific columns, Data Across aNetwork

y

Db4o - Built-In Simple Encryption, Custom EncryptionAdapters


8/10

Security Cont.y Monitoring

y Oracle Provides Oracle Audit Vault to monitor user

activitiesy PostgreSQL Provides statistics collector, able to use

Standard Unix Tools, Viewing Locks table

y Db40 No monitoring tools for security.


9/10

Summaryy Oracle

y Suitable for big companies that can afford the price. Oracleprovide good resource and support for their client anddatabase engine is support large and load of information

y PostgreSQL

y It is an powerful open source DBMS product which providesfeatures including relational and object/relational and it

suites for any size of company.y Db4o

y Suitable for specific applications not for using in applicationsthen storing load of data.


10/10

Referencesy Falsken E (2009) db4o Reference Documentation -

http://developer.db4o.com/documentation/reference/db4o-7.12/java/reference/ (accessed 3 June 2010)

y Oracle (undefined) Oracle Advanced Security,

http://www.oracle.com/technology/deploy/security/database-security/advanced-security/index.html (accessed 3 June 2010)

y Undefined (2009) PostgreSQL 8.4.4 Documentation -http://www.postgresql.org/docs/8.4/interactive/index.html

y Oracle (2009)Cost Effective Security and Compliance with Oracle Database 11gRelease 2, http://www.oracle.com/technology/deploy/security/database-

security/pdf/owp-security-database-11gr2.pdf(accessed 3 June 2010)y Undefined (2008) Oracle Database Object-Relational Developer's Guide

11g Release 1 (11.1) [internet] available at:http://download.oracle.com/docs/cd/B28359_01/appdev.111/b28371/adobjint.htm#CHDCHDHB (accessed 1 June 2010)

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ORDBMS Comparative Report