首次删除用户数据然后插入新数据时，哪个是正确的隔离级别？

Question

我想从表中删除所有用户数据并插入新的。多个任务可以同时执行此操作。

可密封隔离级别是否合适？

SET TRANSACTION ISOLATION LEVEL Serializable;
BEGIN TRANSACTION;

delete from table where userId = 1
insert into table (userid, somethingData) (1,'somethingData 1')
insert into table (userid, somethingData) (1,'somethingData 2')
insert into table (userid, somethingData) (1,'somethingData 3')

COMMIT TRANSACTION;