September 2024
Intermediate to advanced
522 pages
14h 52m
Spanish
Content preview from Google BigQuery: La Guía Definitiva
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Capítulo 7. Optimizar el rendimiento y el coste
Este trabajo se ha traducido utilizando IA. Agradecemos tus opiniones y comentarios: translation-feedback@oreilly.com
El ajuste del rendimiento de BigQuery se suele llevar a cabo porque queremos reducir los tiempos de ejecución de las consultas o el coste, o ambas cosas. En este capítulo, examinamos una serie de optimizaciones del rendimiento que podrían funcionar para tu caso de uso.
Principios de actuación
Donald Knuth, el legendario informático, hizo la famosa observación de que la optimización prematura es la raíz de todos los males. Sin embargo, la cita completa de Knuth es más equilibrada:1
Deberíamos olvidarnos de las pequeñas eficiencias, digamos un 97% de las veces: la optimización prematura es la raíz de todos los males. Sin embargo, no debemos dejar pasar nuestras oportunidades en ese 3% crítico. Un buen programador no se dejará adormecer por un razonamiento así, será prudente y mirará con atención el código crítico; pero sólo después de haber identificado ese código.
Siguiendo a Knuth, nos gustaría advertir que el ajuste del rendimiento sólo debe realizarse al final de la fase de desarrollo, y sólo si se observa que las consultas típicas tardan demasiado. Es mucho mejor tener esquemas de tabla flexibles y consultas elegantes, legibles y mantenibles que ofuscar tus esquemas de tabla y tus consultas en busca de una pizca de rendimiento añadido. Sin embargo, habrá casos en los que sí necesites mejorar el rendimiento de ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.