对于您的第一种情况！
update table
set pricexxxxids=pricelevelid.
如果我正确理解您的第二种情况：（删除重复项/选择不重复项）？
delete from
(
select *,rn=row_number()over(partition by accountid order by accountid) from table
)x
where rn>1
--select distinct * from table
select * from
(
select *,rn=row_number()over(partition by accountid order by accountid) from table
)x
where x.rn=1
SELECT accountid,pricelevelid FROM
(
(SELECT *,
Row_number() OVER ( partition BY accountid ORDER BY counts, pricelevelid ) AS Recency
FROM table
)x
WHERE x.Recency = 1
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