delete from students的意思|示意
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从学生中删除
delete from students的网络常见释义
删除表中的所有数据 删除所有年龄小于21岁的数据: delete from students where age<20; 删除表中的所有数据: delete from students; 在表的最后追加列 address: alter table students add address char(60); ..