SQL ROW_NUMBER() VS TOP
ROW_NUMBER() 的SQL语句:
select * from (
select ID , ArchivesTypeID,SegmentColumnName,SegmentDisplayText,SegmentOrderID,
SegmentSeparator,ROW_NUMBER() over(order by ID desc ) as RowNum from MytestTable ) table1
where RowNum between 1700000 and 1710040
TOP 的SQL语句
WITH temp AS (select ID , ArchivesTypeID,SegmentColumnName,SegmentDisplayText,
SegmentOrderID,SegmentSeparator from MytestTable )
select top 10040 * from temp where id>(
select max(id) from (select top 1700000 ID from temp order by id)table2
) order by ID
记录的总条数 select COUNT(*) from MytestTable 共2399998条
ROW_NUMBER()用时2秒
TOP用时0秒