How to set manually an Oracle Connection String in a DbContext

Question

I have the following connection string:

Answer 1

To create a DbContext using Oracle without use WebConfig, your inheritance of DbContext must inject an Oracle Connection to base constructor:

class MyDbContext: DbContext
{
    public MyDbContext() : base(new OracleConnection("DATA SOURCE=Server; PASSWORD=123;USER ID=SYSTEM"){}
    ...
}