visibility of variable in Retainsameconnection property

Hi,

        I have created 2 execute sql task,both are having same connection.I have set the connection property 'retainsameconnection' true.

In this case, i am able to access the temp table, which i have created in the first task to teh second task.But why can't i am able to access a variable which i have declared in the first task to the second task?Is this property applicable only for temp table?