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9 Ιουν 2011 · delete from YourTable where YourTable.columnA in (select columnA from YourTable group by column A having count(*) > 1)
16 Απρ 2024 · Deleting a MySQL user removes the user's account and the associated grant table privileges. Only admins with global CREATE USER or DELETE privileges can remove another user from MySQL. In this tutorial, learn how to remove one or more MySQL user accounts using the DROP USER statement.
I'm not sure if i understand correctly, but for your example this query will delete those two entries: DELETE FROM words WHERE id IN (SELECT * FROM (SELECT id FROM words GROUP BY `char` HAVING COUNT(`char`) > 2) AS w);
4 Απρ 2021 · DELETE t1 FROM data t1 JOIN data t2 USING (channel_id,timestamp) WHERE t1.id > t2.id
This Oracle tutorial explains how to use the Oracle GROUP BY clause with syntax and examples. The Oracle GROUP BY clause is used in a SELECT statement to collect data across multiple records and group the results by one or more columns.
The DROP USER statement allows you to delete a user from the Oracle Database. If the user has schema objects, the DROP USER statement also can remove all the user’s schema objects along with the user.
The GROUP BY statement is often used with aggregate functions (COUNT(), MAX(), MIN(), SUM(), AVG()) to group the result-set by one or more columns.
