This is a simple POSTGIS database example.
PostGIS is a spatial database extender for PostgreSQL object-relational database. It adds support for geographic objects allowing location queries to be run in SQL.
You can download from the official website https://postgis.net/
A code fragment of a SQL database looks like:
create table carreras (
id int,
nombre varchar(50) not null,
siglas varchar (10) null,
primary key(id)
);
In this code I used basic command like:
- CREATE- SELECT
- ALTER TABLE
- INSERT