Domanda di colloquio di NSETECH
How to find duplicate elements in table
Risposta di colloquio
Anonimo
12 lug 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
Anonimo
select column_name, count(column_name) from table group by column_name having count (column_name) > 1;