这个存储过程错在哪里？
EXEC G_Paging_MultiTable 'Users LEFT OUTER JOIN UsersContact ON Users.ID = UsersContact.Users', 'Users.id', '', 20, 0, '', '', ''
错误提示
1
>=
消息 156，级别 15，状态 1，第 3 行
关键字 'SET' 附近有语法错误。
消息 137，级别 15，状态 1，第 4 行
必须声明标量变量 "@SortColumnBegin"。
消息 137，级别 15，状态 2，第 6 行
必须声明标量变量 "@SortColumnBegin"。
USE [Fruitnet]
GO
/****** Object: StoredProcedure [dbo].[G_Paging_MultiTable] Script Date: 04/19/2013 11:02:18 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
/**
* --调用例子：
* -- 1.单表/单排序
* EXEC G_Paging_MultiTable 'bigtable','d_id','d_id,d_title,d_content,d_time',20,1,'','','d_id desc'
* -- 2.单表/多排序
* EXEC G_Paging_MultiTable 'bigtable','d_id','*',20,0,'','','d_time asc,d_id desc'
* -- 3.多表/单排序
* EXEC G_Paging_MultiTable 'bigtable left join bigtable_author on bigtable.d_id=bigtable_author.BigTable_id', 'bigtable.d_id', 'bigtable.d_id,bigtable.d_title,bigtable.d_content,bigtable.d_time,bigtable_author.d_author', 20, 0, '', '', 'bigtable.d_id asc'
* -- 4.多表/多排序
* EXEC G_Paging_MultiTable 'bigtable left join bigtable_author on bigtable.d_id=bigtable_author.BigTable_id', 'bigtable.d_id', 'bigtable.d_id,bigtable.d_title,bigtable.d_content,bigtable.d_time,bigtable_author.d_author', 20, 0, '', '', 'bigtable.d_time asc,bigtable.d_id desc'
*/
ALTER PROCEDURE [dbo].[G_Paging_MultiTable]
@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 @TopRows
print @Operator
EXEC('
DECLARE @SortColumnBegin ' + @type + '
SET ROWCOUNT ' + @TopRows + '
SELECT @SortColumnBegin=' + @SortColumn + ' FROM ' + @TableNames + ' ' + @Filter + ' ' + @Group + ' ORDER BY ' + @Order + '
SET ROWCOUNT ' + @PageSize + '
SELECT ' + @Fields + ' FROM ' + @TableNames + ' ' + @Filter + ' AND ' + @SortColumn + '' + @Operator + '@SortColumnBegin ' + @Group + ' ORDER BY ' + @Order + '
')
END
@PrimaryKeyvarchar(50),--单一主键或唯一值键[排序列]
@Fieldsvarchar(1000)='*',--返回的列(全部列用*)
@Ordervarchar(200),--排序字段(必须传值！支持多列排序，不用加order by)
@WhereVarchar(500)=N'',--搜索条件(不用加where)
@PageSizeint,--每页大小
@PageIndexint=1,--当前页
@TotalRowCount bigInt output--返回总行数
)
AS
declare @strSQL varchar(8000) -- 主语句
DECLARE @tempWhere1 VARCHAR(1000)-- 临时Where1
DECLARE @tempWhere2 VARCHAR(1000)-- 临时Where2
DECLARE @tempOrder1 VARCHAR(1000)-- 临时Order1
DECLARE @tempOrder2 VARCHAR(1000)-- 临时Order2
set @TotalRowCount = 0
if ISNULL(@Where,'') = ''
begin
set @tempWhere1=''
set @tempWhere2=' where '
end
else
begin
set @tempWhere1=' where '+ @Where
set @tempWhere2=' where ' + @where + ' and '
end
if ISNULL(@Order,'')=''
begin
set @tempOrder1 = ' order by ' + @PrimaryKey
set @tempOrder2 = ' order by ' + @PrimaryKey + ' desc'
end
else
begin
set @tempOrder1 = ' order by ' + @Order
set @tempOrder2 = ' order by ' + REPLACE(REPLACE(@Order,'asc','desc'),'desc','asc')
end
DECLARE @SqlCount NVARCHAR(4000)
DECLARE @TotalPageCount int
SET @SqlCount = 'SELECT @TotalRowCount=COUNT(*) FROM ' + @TableName + @tempWhere1
EXEC SP_EXECUTESQL @SqlCount,N'@TotalRowCount INT OUTPUT,@TotalPageCount INT OUTPUT',
@TotalRowCount OUTPUT,@TotalPageCount OUTPUT
if @PageIndex > CEILING((@TotalRowCount+0.0)/@PageSize)
begin
SET @PageIndex = CEILING((@TotalRowCount+0.0)/@PageSize)
end
if @PageIndex = 1 OR @PageIndex >= CEILING((@TotalRowCount+0.0)/@PageSize)
begin
if @PageIndex = 1 --如果是第一页就执行以上代码，这样会加快执行速度
begin
set @strSQL = 'select top ' + str(@PageSize) +' '+@Fields+ ' from [' + @TableName + ']' + @tempWhere1 + ' ' + @tempOrder1
end
if @PageIndex >= CEILING((@TotalRowCount+0.0)/@PageSize) --返回最后一页数据，这样会加快执行速度
begin
set @strSQL = 'SELECT TOP ' + STR(@PageSize) + ' ' + @Fields + ' FROM ('
+ 'SELECT TOP ' + STR(ABS(@TotalRowCount-@PageSize*@PageIndex+@PageSize))
+ ' ' + @Fields + ' FROM '
+ @TableName + @tempWhere1 + @tempOrder2 + ' ) AS tmpTab '
+ @tempOrder1
end
end
else
begin --以下代码赋予了@strSQL以真正执行的SQL代码
if @PageIndex <= CEILING((@TotalRowCount+0.0)/@PageSize)/2
begin
set @strSQL = 'SELECT TOP ' + STR(@PageSize) + ' ' + @Fields + ' FROM ( '
+ 'SELECT TOP ' + STR(@PageSize) + ' ' + @Fields + ' FROM ( '
+ ' SELECT TOP ' + STR(@PageSize*@PageIndex) + ' ' + @Fields
+ ' FROM ' + @TableName + @tempWhere1 + @tempOrder1 + ' ) AS tmpTab '
+ @tempOrder2 + ' ) AS tmpTab ' + @tempOrder1
end
else --反向检索
begin
set @strSQL = 'SELECT TOP ' + STR(@PageSize) + ' ' + @Fields + ' FROM ( '
+ ' SELECT TOP ' + STR(abs(@TotalRowCount-@PageSize *@PageIndex+@PageSize)) + ' ' + @Fields
+ ' FROM ' + @TableName + @tempWhere1 + @tempOrder2 + ' ) AS tmpTab '
+ @tempOrder1
end
end
EXEC(@strSQL)
