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两个sql server 2000的通用分页存储过程_数据库技巧

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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

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