Home > Ask the Oracle Database / Applications Experts > SOA and application integration Questions & Answers > Beginner data integration questions
Ask The Oracle Expert: Questions & Answers
EMAIL THIS

Beginner data integration questions

Harish Harbham EXPERT RESPONSE FROM: Harish Harbham

Pose a Question
Other Oracle Categories
Meet all Oracle Experts
Become an Expert for this site


Digg This!    StumbleUpon Toolbar StumbleUpon    Bookmark with Delicious Del.icio.us   


>
QUESTION POSED ON: 02 May 2006

Hello. I am a novice in the data integration field. We have multiple Oracle databases, and we are looking at different options that will help to make things more organized and provide the same level of service to users.

I have a few questions:

  1. When to consolidate data sets into a single database?
  2. What are the advantages and disadvantages of integrating at the database, application and presentation layers? When is each appropriate?

I would really appreciate any help on the matter. Thanks.



Digg This!    StumbleUpon Toolbar StumbleUpon    Bookmark with Delicious Del.icio.us   


RELATED CONTENT
SOA and application integration
How to transfer data from Oracle to MS SQL Server
How to convert a SQL Server 2005 database to Oracle 10g
Using Oracle Streams
How to use Oracle Heterogeneous Services
How to create a mediated schema
Oracle Transparent Gateway for Unix
How to perform Oracle replication
How to dump SQL Server database with Oracle data
Setting up backups with data replication
Oracle or SQL Server for developing social networking site?

Oracle data and application integration
Oracle brings Fusion Middleware into the modern age
Risk analysis software now part of Oracle Agile PLM software portfolio
SearchOracle.com podcasts
Special Report: Collaborate '09
Oracle and Java: Some think advisory board would comfort users
Oracle New Year's resolutions, part 1: Advice for navigating 2009
Oracle to acquire application service management firm
Oracle updates its enterprise performance management system, details Hyperion integration
Podcast: Oracle outlines AIA vision
Oracle's 10 steps to get to Fusion rely on Oracle investments

Oracle database design and architecture
Can I download DBCA for Oracle Express Edition?
How to recreate an Oracle index in a new schema with the CREATE command
Using Oracle Universal Installer to install Oracle with Pro*C
Defining Oracle database repository vs. information repository
Can I create multiple schemas in Oracle for one user?
ORA-12514 error when connecting to the Oracle database through Toad
Solving the ORA-00904 error: invalid identifier in Oracle
How to tune SQL UPDATE statements for an Oracle 10g upgrade
Will queries run slower in a smaller Oracle buffer cache?
Using a database link to connect two Oracle apps instances

RELATED GLOSSARY TERMS
Terms from Whatis.com − the technology online dictionary
E. F. Codd  (SearchOracle.com)
extent  (SearchOracle.com)
flexfield  (SearchOracle.com)
foreign key  (SearchOracle.com)
multidimensional database  (SearchOracle.com)
object-oriented database management system  (SearchOracle.com)
quad tree  (SearchOracle.com)
relational online analytical processing  (SearchOracle.com)
row  (SearchOracle.com)
splay tree  (SearchOracle.com)

RELATED RESOURCES
2020software.com, trial software downloads for accounting software, ERP software, CRM software and business software systems
Search Bitpipe.com for the latest white papers and business webcasts
Whatis.com, the online computer dictionary


There are a number of questions you need to ask:

  1. Are the databases related in any way?
  2. Do you carry out a lot of inter-database transactions?
  3. What are the databases used for (i.e., are they DSS or OLTP or a mix)?

If the answer to (1) and/or (2) is yes and the workload is similar(ish) then it may be better to consolidate databases. Even if the workload is different then you can look into the "resource manager" to segregate resources. At one site I had five separate but related databases for a very large data warehouse. I combined all five databases into one large one with data still separated out using different schemas. The resultant database, although large, was easy to manage, and the query + load time for the majority of the processes improved.

Regards,
Harish Harbham




Search and Browse the Expert Answer Center
Search and browse more than 25,000 question and answer pairs from more than 250 TechTarget industry experts.
Browse our Expert Advice



Oracle White Papers: Fusion Middleware
HomeNewsTopicsTipsAsk the ExpertsMultimediaWhite PapersProductsBlogs
About Us  |  Contact Us  |  For Advertisers  |  For Business Partners  |  Site Index  |  RSS
SEARCH 
TechTarget provides technology professionals with the information they need to perform their jobs - from developing strategy, to making cost-effective purchase decisions and managing their organizations' technology projects - with its network of technology-specific websites, events and online magazines.

TechTarget Corporate Web Site  |  Media Kits  |  Site Map




All Rights Reserved, Copyright 2003 - 2009, TechTarget | Read our Privacy Policy 		  TechTarget - The IT Media ROI Experts