SqlServer 第31到第40條記錄的各種玩法

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--兩次對錶A查詢效率較低
select top 10 *
from A
where ID not in (select top 30 ID from A)

--外層查詢沒有對錶A查詢，效率大有提高
select top 10 *
from (select top 40 * from A order by ID) as t 

order by t.ID desc

--ROW_NUMBER()函數效率更高，sqlserver2005以及以上版本中才可以使用
select * 

from (select ROW_NUMBER() over(order by ID) as ‘sequence‘,A.* from A ) as t 

where t.sequence between 31 and 40

 

SELECT * FROM A Order by ID OFFSET 30 ROWS FETCH NEXT 10 ROWS ONLY

SqlServer 第31到第40條記錄的各種玩法