I am trying to import a database from my computer to heroku but it keep on saying unknown command for that.Even I am confuse about it which command to use .I have a postgre sql database.I want to know how to import a database

```
   push from SOURCE_DATABASE to REMOTE_TARGET_DATABASE
 REMOTE_TARGET_DATABASE must be empty.

 SOURCE_DATABASE must be either the name of a database
 existing on your localhost or the fully qualified URL of
 a remote databas

```

So what will be the remote\_target\_database ??? 
and do i need to specify my full path to source database ?