Sql Server RowNumber和表变量分页性能优化小计

直接让代码了，对比看看就了解了

当然，这种情况比较适合提取字段较多的情况，要酌情而定

 

性能较差的：

WITH #temp AS                       
(                                    
Select column1,column2,column3,column4,column5,column6,column7,column8,column9,column10, row_number() over (Order by column100 desc) as RowNumber                                     
From tables1 
Where .....                                  
)                                     
SELECT  * 
FROM #temp 
WHERE RowNumber BETWEEN 1601 and 1620  
ORDER BY RowNumber 

 

优化后，性能较好的

WITH #temp AS                       
(                                    
Select column1, row_number() over (Order by column100 desc) as RowNumber                                     
From tables1 
Where .....                                  
)                                     
SELECT  column1,column2,column3,column4,column5,column6,column7,column8,column9,column10
FROM tables1
where column1 in
(
select column1 from #temp
WHERE RowNumber BETWEEN 1601 and 1620                    
ORDER BY RowNumber 
) 

 

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原文地址：Sql Server RowNumber和表变量分页性能优化小计