MySQL：根据条件删除行，并带有来自另一个表的数据，并且不进行联接

Question

I have a TABLE1 like this:

And a TABLE2 like this:

I want to delete entries from table 1 whose endTimestamp is not equal to ANY table 2 entry endTimestamp, with a margin of 1000 time units.

(I know in this example all the entries from table 1 and table 2 have the same timestamp values, so the 5 entries from table 1 should be kept, and any other should be erased if existed)

Since the ids of both tables are not related to each other, I can't perform a JOIN operation as long as I know.

How can I do this?

EDIT: Tried here . Works, but does not work at my server :|

Answer 1

You're looking for :

delete from table1 where endTimestamp not in (Select endTimestamp from table2)

Edit : As pointed out by @user2864740, you can very well use Join here too, even if the ids of both tables are not related to each other.

DELETE FROM table1 INNER JOIN table2 ON table1.endTimestamp = table2.endTimestamp;