Pergunta de entrevista da empresa Fugro
Write a SQL query to count distinct values from each sensor. Database was PostgreSQL.
Resposta da entrevista
Sigiloso
17 de mar. de 2018
It was also easy, I solved using DISTINCT and GROUP BY.
Write a SQL query to count distinct values from each sensor. Database was PostgreSQL.
Sigiloso
It was also easy, I solved using DISTINCT and GROUP BY.