In order to access a data warehouse from Cognos, there are several steps that must be followed. However, the first step involved in accessing a data warehouse from Cognos is to establish a connection between Cognos and the data warehouse. This connection is necessary in order to allow Cognos to access the data stored in the data warehouse.
To establish this connection, you will need to provide the necessary information to Cognos such as the server name, database name, username, and password. You will also need to specify the type of database connection you want to use (e.g. ODBC, JDBC, etc.).
Once the connection has been established, you can then begin working with the data in the data warehouse and create reports and other analytics content as required.
It is important to remember that this step is the foundation of any data analytics project using Cognos and a successful connection must be established in order to proceed with the rest of the project.
Conclusion
In conclusion, the first step involved in accessing a data warehouse from Cognos is to establish a connection between Cognos and the data warehouse. This connection allows Cognos to access the data stored in the data warehouse and is necessary for any data analytics project using Cognos to be successful.