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DECLARE @t TABLE (rid varchar(10), seqno int); INSERT INTO @t VALUES ('r1', 1), ('r2', 2), ('r3', 3), ('r4', 4), ('r5', 5); DECLARE @fixed TABLE(rid varchar(10), seqno int); INSERT INTO @fixed VALUES ('r5', 2), ('r2', 4), ('r1', 5); WITH SeqenceNos AS (SELECT t.seqno, ROW_NUMBER() OVER(ORDER BY t.seqno) as RowN FROM @t t LEFT JOIN @fixed f on t.seqno = f.seqno WHERE f.seqno is null) , RIDs AS (SELECT t.rid, ROW_NUMBER() OVER(ORDER BY t.rid) as RowN FROM @t t LEFT JOIN @fixed f on t.rid = f.rid WHERE f.rid is null) UPDATE t SET seqno = ISNULL(f.seqno, s.seqno) FROM @t t LEFT JOIN @fixed f on t.rid = f.rid LEFT JOIN RIDs r on t.rid = r.rid LEFT JOIN SeqenceNos s on r.RowN = s.RowN; SELECT * FROM @t;
rid
seqno
r1
5
r2
4
r3
1
r4
3
r5
2