表中主键必须为标识列，[ID] int IDENTITY (1,1)
1.分页方案一：(利用Not In和SELECT TOP分页)
语句形式：
SELECT TOP 10 *
FROM TestTable
WHERE (ID NOT IN
(SELECT TOP 20 id
FROM TestTable
ORDER BY id))
ORDER BY ID
SELECT TOP 页大小 *
FROM TestTable
WHERE (ID NOT IN
(SELECT TOP 页大小*页数 id
FROM 表
ORDER BY id))
ORDER BY ID
2.分页方案二：(利用ID大于多少和SELECT TOP分页）
语句形式：
SELECT TOP 10 *
FROM TestTable
WHERE (ID >
(SELECT MAX(id)
FROM (SELECT TOP 20 id
FROM TestTable
ORDER BY id) AS T))
ORDER BY ID
SELECT TOP 页大小 *
FROM TestTable
WHERE (ID >
(SELECT MAX(id)
FROM (SELECT TOP 页大小*页数 id
FROM 表
ORDER BY id) AS T))
ORDER BY ID
3.分页方案三：(利用SQL的游标存储过程分页)
create procedure SqlPager
@sqlstr nvarchar(4000), --查询字符串
@currentpage int, --第N页
@pagesize int --每页行数
as
set nocount on
declare @P1 int, --P1是游标的id
@rowcount int
exec sp_cursoropen @P1 output,@sqlstr,@scrollopt=1,@ccopt=1, @rowcount=@rowcount output
select ceiling(1.0*@rowcount/@pagesize) as 总页数--,@rowcount as 总行数,@currentpage as 当前页
set @currentpage=(@currentpage-1)*@pagesize+1
exec sp_cursorfetch @P1,16,@currentpage,@pagesize
exec sp_cursorclose @P1
set nocount off
其它的方案：如果没有主键，可以用临时表，也可以用方案三做，但是效率会低。
建议优化的时候，加上主键和索引，查询效率会提高。
通过SQL 查询分析器，显示比较：我的结论是:
分页方案二：(利用ID大于多少和SELECT TOP分页）效率最高，需要拼接SQL语句
分页方案一：(利用Not In和SELECT TOP分页) 效率次之，需要拼接SQL语句
分页方案三：(利用SQL的游标存储过程分页) 效率最差，但是最为通用
CREATE PROCEDURE [dbo].[M13_UserCofferLogViewList_SearchUserCofferLogViewList](
@UserName varchar(256) = null --用户登录名称,null不参与查询
,@NickName varchar(256) = null --用户昵称,null不参与查询
,@AgentIDs varchar(8000) = null --代理商ID集合,null不参与查询
,@OrderBy varchar(2000)='' --排序
,@PageIndex int = 1 --当前页
,@PageSize int = 20 --分页大小
,@TotalCount int = 0 output --–返回总记录数
)
AS
SET NOCOUNT ON
declare @WhereClause nvarchar(4000),@sqlcount nvarchar(4000)
set @WhereClause = ' 1 = 1 '
+case when @UserName is null then '' else ' and (ToUserName like ''%'+ @UserName +'%'') or ( FromUserName like ''%'+ @UserName +'%'' ) ' end
+case when @NickName is null then '' else ' and (ToNickName like ''%'+ @NickName +'%'') or ( FromNickName like ''%'+ @NickName +'%'' ) ' end
+case when @AgentIDs is null then '' else ' and AgentID in ('+ @AgentIDs +')' end
declare @PageLowerBound int
declare @PageUpperBound int
SET @PageLowerBound = @PageSize * (@PageIndex-1)
SET @PageUpperBound = @PageLowerBound + @PageSize
-- 创建临时表
Create Table #PageIndex
(
[IndexId] int IDENTITY (1, 1) NOT NULL,
[AutoID] bigint
)
declare @SQL as nvarchar(4000)
SET @SQL = 'INSERT INTO #PageIndex (AutoID)'
SET @SQL = @SQL + ' SELECT'
IF @PageSize > 0
BEGIN
SET @SQL = @SQL + ' TOP ' + convert(nvarchar, @PageUpperBound)
END
SET @SQL = @SQL + ' [AutoID]'
SET @SQL = @SQL + ' FROM dbo.[UserCofferLogViewList]'
IF LEN(@WhereClause) > 0
BEGIN
SET @SQL = @SQL + ' WHERE ' + @WhereClause
END
IF LEN(@OrderBy) > 0
BEGIN
SET @SQL = @SQL + ' ORDER BY ' + @OrderBy
END
-- Populate the temp table
exec sp_executesql @SQL
-- Return paged results
SELECT O.*
FROM
dbo.[UserCofferLogViewList] O,
#PageIndex PageIndex
WHERE
PageIndex.IndexID > @PageLowerBound
AND O.[AutoID] = PageIndex.[AutoID]
ORDER BY
PageIndex.IndexID
-- get row count
SET @SQL = 'SELECT @TotalCount = count(*)'
SET @SQL = @SQL + ' FROM dbo.[UserCofferLogViewList]'
IF LEN(@WhereClause) > 0
BEGIN
SET @SQL = @SQL + ' WHERE ' + @WhereClause
END
--output count
exec sp_executesql @SQL,N'@TotalCount int output',@TotalCount = @TotalCount output
GO
