= Chapter 1 : Introduction * Compass -> GUI for MondoDB * Database names : collections and documents * collections ≅ tables * documents / objects ≅ registros * namespace = . * Datasets * schema * documents * fields types: * int32 * double * string * date * Fields with Documents as Values * uso en índices * nested documents : un documento (registro) puede contener otro documento (que contiene sus campos) * Fields with Arrays as Values * Filters: * [[http://www.json.org/|JSON]] format * ''{"key":"value"}'' * equality filter : exact value * range filter : ''{'birth year': {$gte: 1970,$lt: 1975}}'' * ''$gte''(greater-equal), ''$lt''(less than) : operators * geographical data * many functions / filtes * click+shift to select arround a point