Скачать или смотреть Top PostgreSQL & Oracle Interview Question: Find and DELETE Duplicates with Multiple Solutions!

Always Ask This Question in PostgreSQL or Oracle Interviews with multiple solution!
This title is direct, engaging, and promises valuable content for both interviewers and candidates preparing for PostgreSQL-related interviews.
time 9:15 min please use this query to see ctid column
select ctid,* from table_name;

⭐️ Contents ⭐
⌨️ (0:00) Introduction
⌨️
not - now allow bracket, you can add
select * from
open brkt select ctid,row_number brkt open and closed over open brkt partition by
a.* closed brkt as sid,*
from demo_test.emp_1 a closed brkt b
where sid not equal to 1;

delete from demo_test.emp_1 a
USING demo_test.emp_1 b
where a.ctid less then b.ctid
and a.emp_id = b.emp_id
and a.emp_nm = b.emp_nm;
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