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    AspNetPager分页控件 存储过程

    2018-05-08 11:29:29 次阅读 稿源:互联网
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    代码如下:

    SET QUOTED_IDENTIFIER ON
    GO
    SET ANSI_NULLS ON
    GO

    ALTER PROCEDURE usp_PagingLarge
    @TableNames VARCHAR(200), --表名,可以是多个表,但不能用别名
    @PrimaryKey VARCHAR(100), --主键,可以为空,但@Order为空时该值不能为空
    @Fields VARCHAR(200), --要取出的字段,可以是多个表的字段,可以为空,为空表示select *
    @PageSize INT, --每页记录数
    @CurrentPage INT, --当前页,0表示第1页
    @Filter VARCHAR(200) = '', --条件,可以为空,不用填 where
    @Group VARCHAR(200) = '', --分组依据,可以为空,不用填 group by
    @Order VARCHAR(200) = '' --排序,可以为空,为空默认按主键升序排列,不用填 order by
    AS
    BEGIN
    DECLARE @SortColumn VARCHAR(200)
    DECLARE @Operator CHAR(2)
    DECLARE @SortTable VARCHAR(200)
    DECLARE @SortName VARCHAR(200)
    IF @Fields = ''
    SET @Fields = '*'
    IF @Filter = ''
    SET @Filter = 'WHERE 1=1'
    ELSE
    SET @Filter = 'WHERE ' + @Filter
    IF @Group <>''
    SET @Group = 'GROUP BY ' + @Group

    IF @Order <> ''
    BEGIN
    DECLARE @pos1 INT, @pos2 INT
    SET @Order = REPLACE(REPLACE(@Order, ' asc', ' ASC'), ' desc', ' DESC')
    IF CHARINDEX(' DESC', @Order) > 0
    IF CHARINDEX(' ASC', @Order) > 0
    BEGIN
    IF CHARINDEX(' DESC', @Order) < CHARINDEX(' ASC', @Order)
    SET @Operator = '<='
    ELSE
    SET @Operator = '>='
    END
    ELSE
    SET @Operator = '<='
    ELSE
    SET @Operator = '>='
    SET @SortColumn = REPLACE(REPLACE(REPLACE(@Order, ' ASC', ''), ' DESC', ''), ' ', '')
    SET @pos1 = CHARINDEX(',', @SortColumn)
    IF @pos1 > 0
    SET @SortColumn = SUBSTRING(@SortColumn, 1, @pos1-1)
    SET @pos2 = CHARINDEX('.', @SortColumn)
    IF @pos2 > 0
    BEGIN
    SET @SortTable = SUBSTRING(@SortColumn, 1, @pos2-1)
    IF @pos1 > 0
    SET @SortName = SUBSTRING(@SortColumn, @pos2+1, @pos1-@pos2-1)
    ELSE
    SET @SortName = SUBSTRING(@SortColumn, @pos2+1, LEN(@SortColumn)-@pos2)
    END
    ELSE
    BEGIN
    SET @SortTable = @TableNames
    SET @SortName = @SortColumn
    END
    END
    ELSE
    BEGIN
    SET @SortColumn = @PrimaryKey
    SET @SortTable = @TableNames
    SET @SortName = @SortColumn
    SET @Order = @SortColumn
    SET @Operator = '>='
    END


    DECLARE @type varchar(50)
    DECLARE @prec int
    SELECT @type=t.name, @prec=c.prec
    FROM sysobjects o
    JOIN syscolumns c on o.id=c.id
    JOIN systypes t on c.xusertype=t.xusertype
    WHERE o.name = @SortTable AND c.name = @SortName




    IF CHARINDEX('char', @type) > 0
    SET @type = @type + '(' + CAST(@prec AS varchar) + ')'


    DECLARE @TopRows INT
    SET @TopRows = @PageSize * @CurrentPage + 1

    PRINT @type
    DECLARE @sql NVARCHAR(4000)

    SET @Sql = 'DECLARE @SortColumnBegin ' + @type + '
    SET ROWCOUNT ' + Cast(@TopRows as VARCHAR(10))+ ' SELECT @SortColumnBegin=' +
    @SortColumn + ' FROM ' + @TableNames + ' ' + @Filter + ' ' + @Group + ' ORDER BY ' + @Order + '
    SET ROWCOUNT ' + CAST(@PageSize AS VARCHAR(10)) + '
    SELECT ' + @Fields + ' FROM ' + @TableNames + ' ' + @Filter + ' AND ' + @SortColumn + '' + @Operator + '@SortColumnBegin ' + ISNULL(@Group,'') + ' ORDER BY ' + @Order + ''

    -- Print(@sql)
    Exec(@sql)


    END

    GO
    SET QUOTED_IDENTIFIER OFF
    GO
    SET ANSI_NULLS ON
    GO

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