SQL联表分页读取效率,该怎么解决

SQL联表分页读取效率


 /// &lt;summary&gt;
        /// 读取标签列表（多表：Plus、Users）
        /// &lt;/summary&gt;
        /// 
        public DataSet GetList_TagUnion(string strWhere,int PageSize,int Page)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("SELECT top " + PageSize + " Plus.*,Users.*  FROM Plus INNER JOIN Users ON Plus.Users_ID =Users.Users_ID ");
            strSql.Append("and " + strWhere);
            strSql.Append("where Plus.Plus_ID not in (select top (" + (Page - 1) * PageSize + ") Plus.Plus_ID  FROM Plus INNER JOIN Users ON Plus.Users_ID =Users.Users_ID and " + strWhere + " order  by Plus.Plus_ID desc) ");
            strSql.Append(" order by Plus.Plus_ID desc");
            return Common.DbHelperSQL.Query(strSql.ToString());
        }

在网上查了一些资料，似乎这样读取效率不高，希望各位大侠指点一下，看有什么更优的方式，我通常需要读取更多的联表~~~~
[解决办法]
--ROW_NUMBER
DECLARE @START_ROW int, @MAX_ROWS int, @TOT_ROW_CNT int

SELECT @START_ROW = 1, @MAX_ROWS = 25;

WITH PAGED AS (

SELECT ROW_NUMBER() OVER(ORDER BY MyDate, MYID) AS rowNum, MYID

FROM TRANS_TABLE(NOLOCK)

)

SELECT TT.*

FROM PAGED PGD

INNER JOIN TRANS_TABLE TT

ON PGD.MYID = TT.MYID

WHERE ROWNUM BETWEEN @START_ROW AND @START_ROW + @MAX_ROWS - 1

ORDER BY MyDate, MYID

--top

SELECT TOP 10 * FROM tb WHERE id>(

SELECT ISNULL(max(id),0) FROM

(SELECT TOP 20 idFROM tb ORDER BY id) t

)
[解决办法]
你看看这个，自己改一下：


declare @page_size int;
declare @page_num int;

--比如：每页10条记录
set @page_size = 10;

--比如：先取第1页
set @page_num = 1;

select *
from
(
select *,   
       
       --这里按照@@servername来排序，
       --你可以根据需要按照id，sid，sname等字段来排序
       (row_number() over(order by @@servername) - 1) / @page_size as pagenum
from sys.objects
)t
where pagenum = @page_num - 1

SQL联表分页读取效率,该怎么解决

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