sql server 2000分页存储过程

[color=blue]第一个支持唯一主键,第二支持多主键,测试过,效率一般

CREATE PROC P_viewPage
/*
no_mIss 分页存储过程 2007.2.20 QQ:34813284
适用于单一主键或存在唯一值列的表或视图
*/

@TableName VARCHAR(200), --表名
@FieldList VARCHAR(2000), --显示列名
@PrimaryKey VARCHAR(100), --单一主键或唯一值键
@Where VARCHAR(1000), --查询条件 不含where字符
@Order VARCHAR(1000), --排序 不含order by字符,如id asc,userid desc,当@SortType=3时生效
@SortType INT, --排序规则 1:正序asc 2:倒序desc 3:多列排序
@RecorderCount INT, --记录总数 0:会返回总记录
@PageSize INT, --每页输出的记录数
@PageIndex INT, --当前页数
@TotalCount INT OUTPUT, --返回记录总数
@TotalPageCount INT OUTPUT --返回总页数
AS
SET NOCOUNT ON
IF ISNULL(@TableName,) = OR ISNULL(@FieldList,) =
OR ISNULL(@PrimaryKey,) =
OR @SortType < 1 OR @SortType >3
OR @RecorderCount < 0 OR @PageSize < 0 OR @PageIndex < 0
BEGIN
RETURN
END

DECLARE @new_where1 VARCHAR(1000)
DECLARE @new_where2 VARCHAR(1000)
DECLARE @new_order VARCHAR(1000)
DECLARE @Sql VARCHAR(8000)
DECLARE @SqlCount NVARCHAR(4000)

IF ISNULL(@where,) =
BEGIN
SET @new_where1 =
SET @new_where2 = WHERE
END
ELSE
BEGIN
SET @new_where1 = WHERE + @where
SET @new_where2 = WHERE + @where + AND
END

IF ISNULL(@order,) = OR @SortType = 1 OR @SortType = 2
BEGIN
IF @SortType = 1 SET @new_order = ORDER BY + @PrimaryKey + ASC
IF @SortType = 2 SET @new_order = ORDER BY + @PrimaryKey + DESC
END
ELSE
BEGIN
SET @new_order = ORDER BY + @Order
END

SET @SqlCount = SELECT @TotalCount=COUNT(*),@TotalPageCount=CEILING((COUNT(*)+0.0)/
+ CAST(@PageSize AS VARCHAR)+) FROM + @TableName + @new_where1

IF @RecorderCount = 0
BEGIN
EXEC SP_EXECUTESQL @SqlCount,N@TotalCount INT OUTPUT,@TotalPageCount INT OUTPUT,
@TotalCount OUTPUT,@TotalPageCount OUTPUT
END
ELSE
BEGIN
SELECT @TotalCount = @RecorderCount
END

IF @PageIndex > CEILING((@TotalCount+0.0)/@PageSize)
BEGIN
SET @PageIndex = CEILING((@TotalCount+0.0)/@PageSize)
END
IF @PageIndex = 1
BEGIN
SET @Sql = SELECT TOP + STR(@PageSize) + + @FieldList + FROM
+ @TableName + @new_where1 + @new_order
END
ELSE
BEGIN
IF @SortType = 1
BEGIN
SET @Sql = SELECT TOP + STR(@PageSize) + + @FieldList + FROM
+ @TableName + @new_where2 + @PrimaryKey + >
+ (SELECT MAX( + @PrimaryKey + ) FROM (SELECT TOP
+ STR(@PageSize*(@PageIndex-1)) + + @PrimaryKey
+ FROM + @TableName
+ @new_where1 + @new_order + ) AS TMP) + @new_order
END
IF @SortType = 2
BEGIN
SET @Sql = SELECT TOP + STR(@PageSize) + + @FieldList + FROM
+ @TableName + @new_where2 + @PrimaryKey + <
+ (SELECT MIN( + @PrimaryKey + ) FROM (SELECT TOP
+ STR(@PageSize*(@PageIndex-1)) + + @PrimaryKey
+ FROM + @TableName
+ @new_where1 + @new_order + ) AS TMP) + @new_order
END
IF @SortType = 3
BEGIN
IF CHARINDEX(,,@Order) = 0 BEGIN RETURN END
SET @Sql = SELECT TOP + STR(@PageSize) + + @FieldList + FROM
+ @TableName + @new_where2 + @PrimaryKey + NOT IN (SELECT TOP
+ STR(@PageSize*(@PageIndex-1)) + + @PrimaryKey
+ FROM + @TableName + @new_where1 + @new_order + )
+ @new_order
END
END
EXEC(@Sql)
GO



CREATE PROC P_public_ViewPage_per
/*
no_mIss 通用分页存储过程 2007.3.1 QQ:34813284
适用于联合主键/单主键/存在能确定唯一行列/存在能确定唯一行的多列 (用英文,隔开)
调用:
第一页查询时返回总记录和总页数及第一页记录:
EXECUTE P_public_ViewPage_per TableName,col1,col2,col3,col4,pk1,pk2,pk3,
col5>0 and col7<9,pk1 asc,pk2 asc,pk3 asc,0,10,1,
@TotalCount OUTPUT,@TotalPageCount OUTPUT
其它页调用,比如第89页(假设第一页查询时返回总记录为2000000):
EXECUTE P_public_ViewPage_per TableName,col1,col2,col3,col4,pk1,pk2,pk3,
col5>0 and col7<9,pk1 asc,pk2 asc,pk3 asc,2000000,10,89,
@TotalCount OUTPUT,@TotalPageCount OUTPUT
*/

@TableName VARCHAR(200), --表名
@FieldList VARCHAR(2000), --显示列名
@PrimaryKey VARCHAR(100), --单一主键或唯一值键或联合主键列表(用英文,隔开)或能确定唯一行的多列列表(用英文,隔开)
@Where VARCHAR(1000), --查询条件 不含where字符
@Order VARCHAR(1000), --排序 不含order by字符,用英文,隔开
@RecorderCount INT, --记录总数 0:会返回总记录
@PageSize INT, --每页输出的记录数
@PageIndex INT, --当前页数
@TotalCount INT OUTPUT, --返回记录总数
@TotalPageCount INT OUTPUT --返回总页数
AS

SET NOCOUNT ON

SET @FieldList = REPLACE(@FieldList, ,)
IF @FieldList = *
BEGIN SET @FieldList = A.*END
ELSE
BEGIN
SET @FieldList = A. + REPLACE(@FieldList,,,,A.)
END

WHILE CHARINDEX(, ,@Order)>0
BEGIN
SET @Order = REPLACE(@Order,, ,,)
END

IF ISNULL(@TableName,) = OR ISNULL(@PrimaryKey,) =
OR @RecorderCount < 0 OR @PageSize < 0 OR @PageIndex < 0
BEGIN
RETURN
END

DECLARE @new_where1 VARCHAR(1000)
DECLARE @new_where2 VARCHAR(1000)
DECLARE @new_where3 VARCHAR(1000)
DECLARE @new_where4 VARCHAR(1000)
DECLARE @new_order1 VARCHAR(1000)
DECLARE @new_order2 VARCHAR(1000)
DECLARE @Fields VARCHAR(1000)
DECLARE @Sql VARCHAR(8000)
DECLARE @SqlCount NVARCHAR(4000)

SET @Fields = @PrimaryKey + ,
SET @new_where2 =
SET @new_where4 =


IF ISNULL(@where,) =
BEGIN
SET @new_where1 =
SET @new_where3 = WHERE
END
ELSE
BEGIN
SET @new_where1 = WHERE + @where +
SET @new_where3 = WHERE 1=1
+ REPLACE( AND + @where, AND , AND A.)+ AND
END

WHILE CHARINDEX(,,@Fields)>0
BEGIN
SET @new_where2 = @new_where2
+ A. + LTRIM(LEFT(@Fields,CHARINDEX(,,@Fields)-1))
+ = B. + LTRIM(LEFT(@Fields,CHARINDEX(,,@Fields)-1)) + AND
SET @new_where4 = @new_where4
+ B. + LTRIM(LEFT(@Fields,CHARINDEX(,,@Fields)-1)) + IS NULL AND
SET @Fields = SUBSTRING(@Fields,CHARINDEX(,,@Fields)+1,LEN(@Fields))
END
SET @new_where2 = LEFT(@new_where2,LEN(@new_where2)-4)
SET @new_where4 = LEFT(@new_where4,LEN(@new_where4)-4)

IF ISNULL(@order,) =
BEGIN
SET @new_order1 =
SET @new_order2 =
END
ELSE
BEGIN
SET @new_order1 = ORDER BY + @Order
SET @new_order2 = ORDER BY
+ RIGHT(REPLACE(, + @Order,,,, A. ),
LEN(REPLACE(, + @Order,,,, A. ))-1)
END

SET @SqlCount = SELECT @TotalCount=COUNT(*),@TotalPageCount=CEILING((COUNT(*)+0.0)/
+ CAST(@PageSize AS VARCHAR)+) FROM + @TableName
+ A + @new_where1

IF @RecorderCount = 0
BEGIN
EXEC SP_EXECUTESQL @SqlCount,N@TotalCount INT OUTPUT,@TotalPageCount INT OUTPUT,
@TotalCount OUTPUT,@TotalPageCount OUTPUT
END
ELSE
BEGIN
SELECT @TotalCount = @RecorderCount
END

IF @PageIndex > CEILING((@TotalCount+0.0)/@PageSize)
BEGIN
SET @PageIndex = CEILING((@TotalCount+0.0)/@PageSize)
END
IF @PageIndex = 1
BEGIN
SET @Sql = SELECT TOP + STR(@PageSize) + + @FieldList + FROM
+ @TableName + A+ @new_where1 + @new_order1
END
ELSE
BEGIN
SET @Sql = SELECT TOP + STR(@PageSize) + + @FieldList + FROM
+ @TableName + A LEFT JOIN (SELECT TOP
+ STR(@PageSize*(@PageIndex-1))
+ + @PrimaryKey + FROM + @TableName + @new_where1
+ @new_order1 + )B ON + @new_where2 + @new_where3
+ @new_where4 + @new_order2
END

EXEC(@Sql)
GO[/color]
基于数据驱动的 Koopman 算子的递归神经网络模型线性化,用于纳米定位系统的预测控制研究(Matlab代码实现)内容概要:本文围绕“基于数据驱动的Koopman算子的递归神经网络模型线性化”展开,旨在研究纳米定位系统的预测控制问题,并提供完整的Matlab代码实现。文章结合数据驱动方法与Koopman算子理论,利用递归神经网络(RNN)对非线性系统进行建模与线性化处理,从而提升纳米级定位系统的精度与动态响应性能。该方法通过提取系统隐含动态特征,构建近似线性模型,便于后续模型预测控制(MPC)的设计与优化,适用于高精度自动化控制场景。文中还展示了相关实验验证与仿真结果,证明了该方法的有效性和先进性。; 适合人群:具备一定控制理论基础和Matlab编程能力,从事精密控制、智能制造、自动化或相关领域研究的研究生、科研人员及工程技术人员。; 使用场景及目标:①应用于纳米级精密定位系统(如原子力显微镜、半导体制造设备)中的高性能控制设计;②为非线性系统建模与线性化提供一种结合深度学习与现代控制理论的新思路;③帮助读者掌握Koopman算子、RNN建模与模型预测控制的综合应用。; 阅读建议:建议读者结合提供的Matlab代码逐段理解算法实现流程,重点关注数据预处理、RNN结构设计、Koopman观测矩阵构建及MPC控制器集成等关键环节,并可通过更换实际系统数据进行迁移验证,深化对方法泛化能力的理解。
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