Thursday, December 31, 2009

DataSource Connection

DataSouce can be defined at 2 places.

a) Cognos Connection
b) Framework Manager

It actually has 2 parts as well. Datasource which is kind of physical connection to the database and second is the datasouce connection which contains the credentials to conenct to the database.

If you see any datasource at the cognos connection,you can actually click on it and you will find the datasource connection(s) under it.You may have multiple datasouce connection for a datasource. When user will run report, he will be prompted to select which datasource connection he wants to use for report.Signon is kind of reusable thing,while defining datasouce connection,you can say that make it signon as well, if you do that then any other person can also use that signon and create many more datasources.He would just need to copy and paste singon from one place to other place(under the new datasource). This work perfactly when you have single ID/PSWD for multiple databases, you won't need that administrator( person knowing ID/PSWD) to enter ID/PSWD for you again and again for each databases.


At Framework manager you can not just right click the Data sources Folder and create a new datasources.You will need to run MetaSata Wizard to get to that place from where either you can bring a existing datasource into your model or create a new datasouce.You just click on namespace and then goto to ACTION menu and click MetaData Wizard. From here procedure is same as you create a datasource from Cognos Connection.

To be continued.......

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