In order to use odbc driver in application we need to use dsn created for those odbc driver in our application.
-         There are possibility of creating 3 types of dsn ie., user dsn, system dsn and file dsn
-         Procedure to create dsn for odbc driver for oracle


Click add button and select Microsoft odbc for oracle and press finish
Now give the values
Data source name
oradsn
Description
Use your own text(optional)
User name
Scott
Server
Optional for personal oracle/local host
Then click ok ok

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