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MSsql数据库如何实现分页存储的代码实例

互联网 2018-05-15 11:29:22 0

reate PROCEDURE Sp_Conn_Sort
(
@tblName   varchar(255),       -- 表名

@strGetFields varchar(1000) = '*',  -- 需要返回的列

@fldName varchar(255)='',      -- 排序的字段名

@PageSize   int = 40,          -- 页尺寸

@PageIndex  int = 1,           -- 页码

@doCount  bit = 0,   -- 返回记录总数, 非 0 值则返回

@OrderType bit = 0,  -- 设置排序类型, 非 0 值则降序
@strWhere  varchar(1500)=''  -- 查询条件 (注意: 不要加 where)
)
AS

declare @strSQL   varchar(5000)       -- 主语句

declare @strTmp   varchar(110)        -- 临时变量

declare @strOrder varchar(400)        -- 排序类型

if @doCount != 0

  begin

    if @strWhere !=''

    set @strSQL = 'select count(*) as Total from ' + @tblName + ' where '+@strWhere

    else

    set @strSQL = 'select count(*) as Total from ' + @tblName

end

--以上代码的意思是如果@doCount传递过来的不是0,就执行总数统计。以下的所有代码都是@doCount为0的情况

else

begin

if @OrderType != 0

begin

    set @strTmp = '<(select min'

set @strOrder = ' order by ' + @fldName +' desc'

--如果@OrderType不是0,就执行降序,这句很重要!

end

else

begin

    set @strTmp = '>(select max'

    set @strOrder = ' order by ' + @fldName +' asc'

end

if @PageIndex = 1

begin

    if @strWhere != ''

    set @strSQL = 'select top ' + str(@PageSize) +' '+@strGetFields+ '  from ' + @tblName + ' where ' + @strWhere + ' ' + @strOrder

     else

     set @strSQL = 'select top ' + str(@PageSize) +' '+@strGetFields+ '  from '+ @tblName + ' '+ @strOrder

--如果是第一页就执行以上代码,这样会加快执行速度

end

else

begin

--以下代码赋予了@strSQL以真正执行的SQL代码

set @strSQL = 'select top ' + str(@PageSize) +' '+@strGetFields+ '  from '

    + @tblName + ' where ' + @fldName + '' + @strTmp + '('+ @fldName + ') from (select top ' + str((@PageIndex-1)*@PageSize) + ' '+ @fldName + ' from ' + @tblName + '' + @strOrder + ') as tblTmp)'+ @strOrder

if @strWhere != ''

    set @strSQL = 'select top ' + str(@PageSize) +' '+@strGetFields+ '  from '

        + @tblName + ' where ' + @fldName + '' + @strTmp + '('

        + @fldName + ') from (select top ' + str((@PageIndex-1)*@PageSize) + ' '

        + @fldName + ' from ' + @tblName + ' where ' + @strWhere + ' '

        + @strOrder + ') as tblTmp) and ' + @strWhere + ' ' + @strOrder

end

end

exec (@strSQL)

-----------------

sql server 2000 单主键高效分页存储过程 (支持多字段排序)

Create PROC P_viewPage       
    /**//*        
    nzperfect [no_mIss] 高效通用分页存储过程(双向检索) 2007.5.7  QQ:34813284        
    敬告:适用于单一主键或存在唯一值列的表或视图        
    ps教程:Sql语句为8000字节,调用时请注意传入参数及sql总长度不要超过指定范围        
    */        
    @TableName VARCHAR(200),     --表名        
    @FieldList VARCHAR(2000),    --显示列名,如果是全部字段则为*        
    @PrimaryKey VARCHAR(100),    --单一主键或唯一值键        
    @Where VARCHAR(2000),        --查询条件 不含'where'字符,如id>10 and len(userid)>9        
    @Order VARCHAR(1000),        --排序 不含'order by'字符,如id asc,userid desc,必须指定asc或desc        
    --注意当@SortType=3时生效,记住一定要在最后加上主键,否则会让你比较郁闷        
    @SortType INT,               --排序规则 1:正序asc 2:倒序desc 3:多列排序方法        
    @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 ,      --记返回总记录        
    @TotalPageCount INT OUTPUT   --返回总页数        
AS        
SET NOCOUNT ON        
    IF ISNULL(@TotalCount,'') = '' SET @TotalCount = 0        
    SET @Order = RTRIM(LTRIM(@Order))        
    SET @PrimaryKey = RTRIM(LTRIM(@PrimaryKey))        
    SET @FieldList = REPLACE(RTRIM(LTRIM(@FieldList)),' ','')        
    WHILE CHARINDEX(', ',@Order) > 0 or CHARINDEX(' ,',@Order) > 0        
        BEGIN        
            SET @Order = REPLACE(@Order,', ',',')        
            SET @Order = REPLACE(@Order,' ,',',')        
        END        
    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        
            PRINT('ERR_00')        
            RETURN        
        END        
    IF @SortType = 3        
        BEGIN        
            IF (UPPER(RIGHT(@Order,4))!=' ASC' AND UPPER(RIGHT(@Order,5))!=' DESC')        
                BEGIN PRINT('ERR_02') RETURN END        
        END        
    DECLARE @new_where1 VARCHAR(1000)        
    DECLARE @new_where2 VARCHAR(1000)        
    DECLARE @new_order1 VARCHAR(1000)        
    DECLARE @new_order2 VARCHAR(1000)        
    DECLARE @new_order3 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        
                BEGIN        
                    SET @new_order1 = ' orDER BY ' + @PrimaryKey + ' ASC'        
                    SET @new_order2 = ' orDER BY ' + @PrimaryKey + ' DESC'        
                END        
            IF @SortType = 2        
                BEGIN        
                    SET @new_order1 = ' orDER BY ' + @PrimaryKey + ' DESC'        
                    SET @new_order2 = ' orDER BY ' + @PrimaryKey + ' ASC'        
                END        
        END        
    ELSE        
        BEGIN        
            SET @new_order1 = ' orDER BY ' + @Order        
        END        
  
    IF @SortType = 3 AND  CHARINDEX(','+@PrimaryKey+' ',','+@Order)>0        
    BEGIN        
        SET @new_order1 = ' orDER BY ' + @Order        
        SET @new_order2 = @Order + ','        
        SET @new_order2 = REPLACE(REPLACE(@new_order2,'ASC,','{ASC},'),'DESC,','{DESC},')        
        SET @new_order2 = REPLACE(REPLACE(@new_order2,'{ASC},','DESC,'),'{DESC},','ASC,')        
        SET @new_order2 = ' orDER BY ' + SUBSTRING(@new_order2,1,LEN(@new_order2)-1)        
        IF @FieldList <> '*'        
            BEGIN        
                SET @new_order3 = REPLACE(REPLACE(@Order + ',','ASC,',','),'DESC,',',')        
                SET @FieldList = ',' + @FieldList        
                WHILE CHARINDEX(',',@new_order3)>0        
                    BEGIN        
                        IF CHARINDEX(SUBSTRING(','+@new_order3,1,CHARINDEX(',',@new_order3)),','+@FieldList+',')>0        
                            BEGIN        
                                SET @FieldList =        
                                @FieldList + ',' + SUBSTRING(@new_order3,1,CHARINDEX(',',@new_order3))        
                            END        
                        SET @new_order3 =        
                        SUBSTRING(@new_order3,CHARINDEX(',',@new_order3)+1,LEN(@new_order3))        
                    END        
                SET @FieldList = SUBSTRING(@FieldList,2,LEN(@FieldList))        
            END        
        END   
       
    SET @SqlCount = 'Select @TotalCount=COUNT(*),@TotalPageCount=CEILING((COUNT(*)+0.0)/'        
    + CAST(@PageSize AS VARCHAR)+') FROM (Select * FROM ' + @TableName + @new_where1+') AS T'        
    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 or @PageIndex >= CEILING((@TotalCount+0.0)/@PageSize)        
        BEGIN        
            IF @PageIndex = 1 --返回第一页数据        
                BEGIN        
                    SET @Sql = 'Select * FROM (Select TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM '        
                    + @TableName + @new_where1 + @new_order1 +') AS TMP ' + @new_order1  
                END        
            IF @PageIndex >= CEILING((@TotalCount+0.0)/@PageSize)  --返回最后一页数据        
                BEGIN        
                    SET @Sql = 'Select TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM ('        
                    + 'Select TOP ' + STR(ABS(@PageSize*@PageIndex-@TotalCount-@PageSize))        
                    + ' ' + @FieldList + ' FROM '        
                    + @TableName + @new_where1 + @new_order2 + ' ) AS TMP '        
                    + @new_order1        
                END        
        END        
    ELSE    
          
        BEGIN        
        IF @SortType = 1 www.3ppt.com --仅主键正序排序        
            BEGIN        
                IF @PageIndex <= CEILING((@TotalCount+0.0)/@PageSize)/2  --正向检索        
                    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_order1 +' ) AS TMP) '+ @new_order1        
                    END        
                ELSE  --反向检索        
                    BEGIN        
                        SET @Sql = 'Select TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM ('        
                        + 'Select TOP ' + STR(@PageSize) + ' '        
                        + @FieldList + ' FROM '        
                        + @TableName + @new_where2 + @PrimaryKey + ' < '        
                        + '(Select MIN(' + @PrimaryKey + ') FROM (Select TOP '       
                        + STR(@TotalCount-@PageSize*@PageIndex) + ' ' + @PrimaryKey        
                        + ' FROM ' + @TableName        
                        + @new_where1 + @new_order2 +' ) AS TMP) '+ @new_order2        
                        + ' ) AS TMP ' + @new_order1        
                    END        
            END        
        IF @SortType = 2  --仅主键反序排序        
            BEGIN        
                IF @PageIndex <= CEILING((@TotalCount+0.0)/@PageSize)/2  --正向检索        
                    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_order1 + ') AS TMP) '+ @new_order1        
                    END        
                ELSE  --反向检索        
                    BEGIN        
                        SET @Sql = 'Select TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM ('        
                        + 'Select TOP ' + STR(@PageSize) + ' '        
                        + @FieldList + ' FROM '        
                        + @TableName + @new_where2 + @PrimaryKey + ' > '        
                        + '(Select MAX(' + @PrimaryKey + ') FROM (Select TOP '        
                        + STR(@TotalCount-@PageSize*@PageIndex) + ' ' + @PrimaryKey        
                        + ' FROM ' + @TableName        
                        + @new_where1 + @new_order2 +' ) AS TMP) '+ @new_order2        
                        + ' ) AS TMP ' + @new_order1        
                    END        
            END        
        IF @SortType = 3  --多列排序,必须包含主键,且放置最后,否则不处理        
            BEGIN        
                IF CHARINDEX(',' + @PrimaryKey + ' ',',' + @Order) = 0        
                    BEGIN PRINT('ERR_02') RETURN END        
                    IF @PageIndex <= CEILING((@TotalCount+0.0)/@PageSize)/2  --正向检索        
                        BEGIN        
                            SET @Sql = 'Select TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM ( '        
                            + 'Select TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM ( '        
                            + ' Select TOP ' + STR(@PageSize*@PageIndex) + ' ' + @FieldList        
                            + ' FROM ' + @TableName + @new_where1 + @new_order1 + ' ) AS TMP '        
                            + @new_order2 + ' ) AS TMP ' + @new_order1        
                        END        
                    ELSE  --反向检索        
                        BEGIN        
                            SET @Sql = 'Select TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM ( '        
                            + 'Select TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM ( '        
                            + ' Select TOP ' + STR(@TotalCount-@PageSize *@PageIndex+@PageSize) + ' ' + @FieldList        
                            + ' FROM ' + @TableName + @new_where1 + @new_order2 + ' ) AS TMP '        
                            + @new_order1 + ' ) AS TMP ' + @new_order1        
                        END        
            END        
        END        
    PRINT(@SQL)        
    EXEC(@Sql)

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