mysql remove duplicates
DELETE FROM table_name WHERE id
NOT IN ( SELECT id FROM table_name
GROUP BY field_1, field_2)mysql remove duplicates
DELETE FROM table_name WHERE id
NOT IN ( SELECT id FROM table_name
GROUP BY field_1, field_2)mysql delete duplicate rows but keep one
DELETE c1 FROM contacts c1
INNER JOIN contacts c2
WHERE
c1.id > c2.id AND
c1.email = c2.email;mysql delete duplicate rows
DELETE FROM table_name
WHERE
id IN (
SELECT
id
FROM (
SELECT
id,
ROW_NUMBER() OVER (
PARTITION BY field_1
ORDER BY field_1) AS row_num
FROM
table_name
) t
WHERE row_num > 1
);mysql remove duplicates
DELETE t1 FROM contacts t1
INNER JOIN contacts t2
WHERE
t1.id < t2.id AND
t1.email = t2.email;Code language: SQL (Structured Query Language) (sql)Copyright © 2021 Codeinu
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