Access Drupal7 Database Nodes without actually having anything installed (simple php + mysql)
If I'm not wrong you want a 'query' that connect a content type with all its fields.

Each field has it own table.

But you can connect the dots using a few queries ([content_type_name] could be article, car_entry or whatever the name of your content type is):

*Getting all the entries for a content type


  SELECT * FROM node WHERE type = '[content_type_name]'
  
  column id would be the [entity_id]


*Getting all fields from a content type


  SELECT * FROM field_config_instance WHERE entity_type = 'node' AND bundle = '[content_type_name]'
  
  this table contains column field_id [field_id] and column field_name [field_name]


Now that you have the fields:

*Get the field info using field_id and/or field_name


  SELECT * FROM field_config WHERE id=[field_id] AND field_name='[field_name]'


*Get the field data by node


  SELECT * FROM field_data_[field_name] WHERE entity_id = [entity_id]


Play around with those queries, so you get a better idea of the columns that each one of those tables contains. Then you can create mysql joins to create the queries that you need.