As I have been putting together my ODI blog posts I wanted to put together another post discussing the different types of ODI repositories, “Master and Work.” But the repository I want to touch upon the most in the “Work” repository and the different options the ODI work repository has to offer. Now before I get into my post let me give you the Oracle definition of the two types of repositories within ODI.
Master Repository: This is a data structure containing information on the topology of the company’s IT resources, on security and on version management of projects and data models. This repository is stored on a relational database accessible in client/server mode from the different Oracle Data Integrator modules. In general, you need only one master repository. However, it may be necessary to create several master repositories in one of the following cases:
o Project construction over several sites not linked by a high-speed network (off-site development, for example).
o Necessity to clearly separate the interfaces’ operating environments (development, test, production), including on the database containing the master repository. This may be the case if these environments are on several sites.
- Work Repository: This is a data structure containing information on data models, projects, and their use. This repository is stored on a relational database accessible in client/server mode from the different Oracle Data Integrator modules. Several work repositories can be created with several master repositories if necessary. However, a work repository can be linked with only one master repository for version management purposes.[1]
Now that you have a better understanding of the two types of ODI repositories, I wanted to dive more into the work repository. Now regardless of your environment DEV, TEST or PROD you will need a master repository. But the work repository can be setup in two different ways. Either you can have a ODI Development Work Repository (DWR) or a ODI Execution Work Repository (EWR).
Now the ODI DWR repository biggest difference from your ODI EWR repository will have your ODI Designer tab in which you will see your projects tab (packages, interfaces, procedures, variables, sequences, user functions, knowledge modules, markers), models tab, load plans and scenarios tab, global objects tab, solutions tab, and etc. Basically to put it simply the ODI DWR repository is setup in which developers are allowed to develop their ODI E-LT components.
The ODI EWR repository is execution only and used mainly for your production environment. Here you cannot modify your ODI code and you can only migrate your ODI scenarios and load plans in which you can execute.
Hopefully this short post has shed some better understanding on the different types of ODI repositories. For more information on ODI repositories visit, Oracle’s Introduction to Oracle Data Integrator Repositories.
References:
[1] http://docs.oracle.com/cd/E21764_01/integrate.1111/e12643/admin_reps.htm
