存储过程分页（1）

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

end  

exec (@strSQL)

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

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)