数据库分页存储过程

来源：互联网发布：淘宝店铺装修备份还原编辑：程序博客网时间：2024/05/15 03:07

create 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

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: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  --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)

相关网址：http://www.cnblogs.com/wang123/archive/2006/08/05/468717.html

0 0