I need to DELETE duplicated rows for specified sid on a MySQL table.
How can I do this with an SQL query?
DELETE (DUPLICATED TITLES) FROM table WHERE SID = "1"
Something like this, but I don't know how to do it.
This removes duplicates in place, without making a new table
ALTER IGNORE TABLE `table_name` ADD UNIQUE (title, SID)
Note: only works well if index fits in memory
Hope it works!!
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