简单测试分页，省得总是忘记

开销：30% 特点：两次排序38%*2，一次嵌套循环1%，两次聚集索引扫描11%*2

SELECT TOP 10 * FROM dbo.T_AUT_OrganizationInfo
WHERE F_ID > (SELECT Max(F_ID) FROM (SELECT TOP 30 F_ID FROM dbo.T_AUT_OrganizationInfo ORDER BY F_ID) AS TempTable)
ORDER BY F_ID;

 

开销：35% 特点：两次排序33%*2，一次合并链接16%，两次聚集索引扫描9%*2

SELECT TOP 10 * FROM dbo.T_AUT_OrganizationInfo
WHERE F_ID NOT IN (SELECT TOP 30 F_ID FROM dbo.T_AUT_OrganizationInfo ORDER BY F_ID)
ORDER BY F_ID;

 

开销：35% 特点：两次排序33%*2，一次合并链接16%，两次聚集索引扫描9%*2

SELECT TOP 10 * FROM dbo.T_AUT_OrganizationInfo A
WHERE NOT EXISTS (
    SELECT * FROM (
        SELECT TOP 30 F_ID FROM dbo.T_AUT_OrganizationInfo ORDER BY F_ID
    ) AS B WHERE A.F_ID=B.F_ID
)
ORDER BY F_ID;

 

还是 Max 快，Not In 和 Exists 居然是没有区别的...记得曾经某文章分析好像他们某个是内表较大快，一个是外表较大快，有时间再测了。