Chapter 1 : Introduction
Compass →
GUI
for MondoDB
Database names : collections and documents
collections ≅ tables
documents / objects ≅ registros
namespace = <database>.<collection>
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:
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