with ss as(select row_number(partition by a.name order by a.name) as rn,a.* from table a) update ss set ss.number=ss.number+ss.rn where ss.rn>=2这种语句可以用吗，
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更新的话试试这个语句
update a a1
set number=(select a1.number+count(1)
from a
where name=a1.name and rowid<a1.rowid)