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You can use group by:
select first_name, last_name
from t
group by first_name, last_name
having count(*) = 1;
[ad_2]
solved How to delete all duplicate records from sql
[ad_1]
You can use group by:
select first_name, last_name
from t
group by first_name, last_name
having count(*) = 1;
[ad_2]
solved How to delete all duplicate records from sql