Rellenar bases de datos orientadas a columnas

Introducción a NoSQL

Jake Roach

Data Engineer

Rellenar bases de datos orientadas a filas vs. a columnas

Orientada a filas:

Orientada a columnas:

Base de datos analítica que se actualiza a diario.

Imagen de un almacén de datos Snowflake y sus objetos de almacenamiento anidados.

CREATE TABLE books (
    title VARCHAR(100),
    author VARCHAR(100),
    price FLOAT
);

COPY INTO books
FROM 'file://data_science_books.csv'
FILE_FORMAT = (
    TYPE = 'CSV'
    FIELD_DELIMITER = ','
    SKIP_HEADER = 1
);

COPY INTO

FROM

FILE_FORMAT

¹ https://docs.snowflake.com/en/sql-reference/sql/copy-into-table

CREATE TABLE premium_books AS
SELECT *
FROM books
WHERE price > 50.00;

CREATE OR REPLACE TABLE premium_books AS
SELECT *
FROM books
WHERE price > 50.00;

CREATE TABLE ... AS

SELECT ...

OR REPLACE

¹ https://docs.snowflake.com/en/sql-reference/sql/create-table

Introducción a NoSQL