Pregunta de entrevista de J.P. Morgan
What is a group by in SQL?
Respuesta de la entrevista
Anónimo
4 mar 2015
Group By is used to aggregate data, and 'group' the same values together so you only see unique types
What is a group by in SQL?
Anónimo
Group By is used to aggregate data, and 'group' the same values together so you only see unique types