Pergunta de entrevista da empresa NSETECH
How to find duplicate elements in table
Resposta da entrevista
Sigiloso
12 de jul. de 2017
select column_name, count(column_name) from table group by column_name having count (column_name) > 1;
How to find duplicate elements in table
Sigiloso
select column_name, count(column_name) from table group by column_name having count (column_name) > 1;