删除所有行时如何只保留一行表？

Question

我不知道如何使用此查询。

我想删除所有记录，但只保留一个记录。

我尝试使用NOT IN，但我不知道如何：

DELETE FROM members
WHERE ID NOT IN

Answer 1

请试试这个

DELETE FROM members WHERE ID NOT IN (id_you_dont_want_to_delete);

这将锻炼

Answer 2

DELETE FROM members WHERE id <> 42;

Answer 3

要删除重复项，可以使用Co相关查询 像贝娄一样

DELETE FROM our_table
WHERE rowid not in
(SELECT MIN(rowid)
FROM our_table
GROUP BY column1, column2, column3) ;

如果你想删除其他一条记录，你可以像下面那样使用

 DELETE FROM members WHERE id <> 1;