1、
Must be the same as the session ID on which the command is being run.
必须与正在运行该命令的会话id相同。
provided by jukuu
2、
The last command can delete a specific record by ID or many records through a query.
最后一个命令可以按照ID删除一条特定记录，也可以通过查询删除多条记录。
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