oracle 手动增加序列值

1、select seq_name.nextval from dual; //假设得到结果5656 
2、alter sequence seq_name increment by -5655; //注意是-(n-1) 
3、select seq_name.nextval from dual;//再查一遍，走一下,重置为1了 
4、alter sequence seq_name increment by 1;//还原

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