--測試數據
if not object_id(N'Tempdb..#T') is null
drop table #T
Go
Create table #T([Id] varchar(10),[Value] int )
Insert #T
select 'A',1 union all
select 'B',2 union all
select 'C',3 union all
select 'D',4 union all
select 'E',5
Go
--測試數據結束
SELECT *,
LEAD(Value, 1, 666) OVER (ORDER BY Value) AS LEADVALUE, --提前1行,默認值666
LAG(Value, 2, 888) OVER (ORDER BY Value) AS LAGVALUE --滯後2行,默認值888
FROM #T;
SELECT *,
LEAD(Value, 1) OVER (ORDER BY Value) AS LEADVALUE, --提前1行,默認值666
LAG(Value, 2) OVER (ORDER BY Value) AS LAGVALUE --滯後2行,默認值888
FROM #T;
SQLserver LEAD和LAG函數
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