以下是我百度找的多表分页查询存储过程,在程序中调用时报错,提示@tblName的字符串有错,我看到提示中字符串被截断了,我在数据库进行调用测试是没问题的,不太清楚为什么会出现这样的问题,请大大帮看一下什么问题存储过程:CREATE PROCEDURE [dbo].[proc_ListPage]
(
@tblName nvarchar(max), ----要显示的表或多个表的连接
@fldName nvarchar(max),-- = '*', ----要显示的字段列表
@pageSize int,-- = 1, ----每页显示的记录个数
@page int,-- = 10, ----要显示那一页的记录
@pageCount int output, ----查询结果分页后的总页数
@Counts int output, ----查询到的记录数
@fldSort nvarchar(max), ----排序字段列表或条件
@Sort bit, ----排序方法,0为升序,1为降序(如果是多字段排列Sort指代最后一个排序字段的排列顺序(最后一个排序字段不加排序标记)--程序传参如:' SortA Asc,SortB Desc,SortC ')
@strCondition nvarchar(max), ----查询条件,不需where
@ID nvarchar(1000), ----主表的主键
@Dist bit ----是否添加查询字段的 DISTINCT 默认0不添加/1添加
)
AS
SET NOCOUNT ON
Declare @sqlTmp nvarchar(max) ----存放动态生成的SQL语句
Declare @strTmp nvarchar(max) ----存放取得查询结果总数的查询语句
Declare @strID nvarchar(max) ----存放取得查询开头或结尾ID的查询语句Declare @strSortType nvarchar(10) ----数据排序规则A
Declare @strFSortType nvarchar(10) ----数据排序规则BDeclare @SqlSelect nvarchar(50) ----对含有DISTINCT的查询进行SQL构造
Declare @SqlCounts nvarchar(50) ----对含有DISTINCT的总数查询进行SQL构造
if @Dist = 0
begin
set @SqlSelect = 'select '
set @SqlCounts = 'Count(*)'
end
else
begin
set @SqlSelect = 'select distinct '
set @SqlCounts = 'Count(DISTINCT '+@ID+')'
end
if @Sort=0
begin
set @strFSortType=' ASC '
set @strSortType=' DESC '
end
else
begin
set @strFSortType=' DESC '
set @strSortType=' ASC '
end --------生成查询语句--------
--此处@strTmp为取得查询结果数量的语句
if @strCondition is null or @strCondition='' --没有设置显示条件
begin
set @sqlTmp = @fldName + ' From ' + @tblName
set @strTmp = @SqlSelect+' @Counts='+@SqlCounts+' FROM '+@tblName
set @strID = ' From ' + @tblName
end
else
begin
set @sqlTmp = + @fldName + 'From ' + @tblName + ' where (1>0) ' + @strCondition
set @strTmp = @SqlSelect+' @Counts='+@SqlCounts+' FROM '+@tblName + ' where (1>0) ' + @strCondition
set @strID = ' From ' + @tblName + ' where (1>0) ' + @strCondition
end----取得查询结果总数量-----
exec sp_executesql @strTmp,N'@Counts int out ',@Counts out
declare @tmpCounts int
if @Counts = 0
set @tmpCounts = 1
else
set @tmpCounts = @Counts --取得分页总数
set @pageCount=(@tmpCounts+@pageSize-1)/@pageSize /**//**当前页大于总页数 取最后一页**/
if @page>@pageCount
set @page=@pageCount --/*-----数据分页2分处理-------*/
declare @pageIndex int --总数/页大小
declare @lastcount int --总数%页大小 set @pageIndex = @tmpCounts/@pageSize
set @lastcount = @tmpCounts%@pageSize
if @lastcount > 0
set @pageIndex = @pageIndex + 1
else
set @lastcount = @pagesize --//***显示分页
if @strCondition is null or @strCondition='' --没有设置显示条件
begin
if @pageIndex<2 or @page<=@pageIndex / 2 + @pageIndex % 2 --前半部分数据处理
begin
set @strTmp=@SqlSelect+' top '+ CAST(@pageSize as NVARCHAR(4))+' '+ @fldName+' from '+@tblName
+' where '+@ID+' not in('+ @SqlSelect+' top '+ CAST(@pageSize*(@page-1) as NVarchar(20)) +' '+ @ID +' from '+@tblName
+' order by '+ @fldSort +' '+ @strFSortType+')'
+' order by '+ @fldSort +' '+ @strFSortType
end
else
begin
set @page = @pageIndex-@page+1 --后半部分数据处理
if @page <= 1 --最后一页数据显示
set @strTmp=@SqlSelect+' * from ('+@SqlSelect+' top '+ CAST(@lastcount as NVARCHAR(4))+' '+ @fldName+' from '+@tblName
+' order by '+ @fldSort +' '+ @strSortType+') AS TempTB'+' order by '+ @fldSort +' '+ @strFSortType
else
set @strTmp=@SqlSelect+' * from ('+@SqlSelect+' top '+ CAST(@pageSize as NVARCHAR(4))+' '+ @fldName+' from '+@tblName
+' where '+@ID+' not in('+ @SqlSelect+' top '+ CAST(@pageSize*(@page-2)+@lastcount as NVarchar(20)) +' '+ @ID +' from '+@tblName
+' order by '+ @fldSort +' '+ @strSortType+')' +' order by '+ @fldSort +' '+ @strSortType+') AS TempTB'+' order by '+ @fldSort +' '+ @strFSortType
end
end else --有查询条件
begin
if @pageIndex<2 or @page<=@pageIndex / 2 + @pageIndex % 2 --前半部分数据处理
begin
set @strTmp=@SqlSelect+' top '+ CAST(@pageSize as NVARCHAR(4))+' '+ @fldName +' from '+@tblName
+' where '+@ID+' not in('+ @SqlSelect+' top '+ CAST(@pageSize*(@page-1) as NVarchar(20)) +' '+ @ID +' from '+@tblName
+' Where (1>0) ' + @strCondition + ' order by '+ @fldSort +' '+ @strFSortType+')'
+' ' + @strCondition + ' order by '+ @fldSort +' '+ @strFSortType
end
else
begin
set @page = @pageIndex-@page+1 --后半部分数据处理
if @page <= 1 --最后一页数据显示
set @strTmp=@SqlSelect+' * from ('+@SqlSelect+' top '+ CAST(@lastcount as NVARCHAR(4))+' '+ @fldName+' from '+@tblName
+' where (1>0) '+ @strCondition +' order by '+ @fldSort +' '+ @strSortType+') AS TempTB'+' order by '+ @fldSort +' '+ @strFSortType
else
set @strTmp=@SqlSelect+' * from ('+@SqlSelect+' top '+ CAST(@pageSize as NVARCHAR(4))+' '+ @fldName+' from '+@tblName
+' where '+@ID+' not in('+ @SqlSelect+' top '+ CAST(@pageSize*(@page-2)+@lastcount as NVarchar(20)) +' '+ @ID +' from '+@tblName
+' where (1>0) '+ @strCondition +' order by '+ @fldSort +' '+ @strSortType+')'
+ @strCondition +' order by '+ @fldSort +' '+ @strSortType+') AS TempTB'+' order by '+ @fldSort +' '+ @strFSortType
end
end------返回查询结果-----
exec sp_executesql @strTmp
--print @strTmp
SET NOCOUNT OFF GO
程序调用:public static DataSet RunProcedureGetDataSetAndRowCount(string storedProcName, IDataParameter[] parameters, string returnpara, out int pageCount)
{
using (SqlConnection connection = new SqlConnection(connectionString))
{
SqlCommand myCommand = new SqlCommand(storedProcName, connection);
myCommand.Parameters.AddRange(parameters);
myCommand.CommandType = CommandType.StoredProcedure;
DataSet ds = new DataSet();
SqlDataAdapter adapter = new SqlDataAdapter(myCommand);
adapter.Fill(ds); //执行到这里报错
pageCount = int.Parse(myCommand.Parameters[returnpara].Value.ToString()); return ds;
}
}应该是@tblName这个参数的值被截断了,参数的长度大概只有200左右(中文已计算2个长度在内),数据表都是中文的,这个没多大关系吧,反正当时我在分析器中测试这个存储过程是没问题的!
(
@tblName nvarchar(max), ----要显示的表或多个表的连接
@fldName nvarchar(max),-- = '*', ----要显示的字段列表
@pageSize int,-- = 1, ----每页显示的记录个数
@page int,-- = 10, ----要显示那一页的记录
@pageCount int output, ----查询结果分页后的总页数
@Counts int output, ----查询到的记录数
@fldSort nvarchar(max), ----排序字段列表或条件
@Sort bit, ----排序方法,0为升序,1为降序(如果是多字段排列Sort指代最后一个排序字段的排列顺序(最后一个排序字段不加排序标记)--程序传参如:' SortA Asc,SortB Desc,SortC ')
@strCondition nvarchar(max), ----查询条件,不需where
@ID nvarchar(1000), ----主表的主键
@Dist bit ----是否添加查询字段的 DISTINCT 默认0不添加/1添加
)
AS
SET NOCOUNT ON
Declare @sqlTmp nvarchar(max) ----存放动态生成的SQL语句
Declare @strTmp nvarchar(max) ----存放取得查询结果总数的查询语句
Declare @strID nvarchar(max) ----存放取得查询开头或结尾ID的查询语句Declare @strSortType nvarchar(10) ----数据排序规则A
Declare @strFSortType nvarchar(10) ----数据排序规则BDeclare @SqlSelect nvarchar(50) ----对含有DISTINCT的查询进行SQL构造
Declare @SqlCounts nvarchar(50) ----对含有DISTINCT的总数查询进行SQL构造
if @Dist = 0
begin
set @SqlSelect = 'select '
set @SqlCounts = 'Count(*)'
end
else
begin
set @SqlSelect = 'select distinct '
set @SqlCounts = 'Count(DISTINCT '+@ID+')'
end
if @Sort=0
begin
set @strFSortType=' ASC '
set @strSortType=' DESC '
end
else
begin
set @strFSortType=' DESC '
set @strSortType=' ASC '
end --------生成查询语句--------
--此处@strTmp为取得查询结果数量的语句
if @strCondition is null or @strCondition='' --没有设置显示条件
begin
set @sqlTmp = @fldName + ' From ' + @tblName
set @strTmp = @SqlSelect+' @Counts='+@SqlCounts+' FROM '+@tblName
set @strID = ' From ' + @tblName
end
else
begin
set @sqlTmp = + @fldName + 'From ' + @tblName + ' where (1>0) ' + @strCondition
set @strTmp = @SqlSelect+' @Counts='+@SqlCounts+' FROM '+@tblName + ' where (1>0) ' + @strCondition
set @strID = ' From ' + @tblName + ' where (1>0) ' + @strCondition
end----取得查询结果总数量-----
exec sp_executesql @strTmp,N'@Counts int out ',@Counts out
declare @tmpCounts int
if @Counts = 0
set @tmpCounts = 1
else
set @tmpCounts = @Counts --取得分页总数
set @pageCount=(@tmpCounts+@pageSize-1)/@pageSize /**//**当前页大于总页数 取最后一页**/
if @page>@pageCount
set @page=@pageCount --/*-----数据分页2分处理-------*/
declare @pageIndex int --总数/页大小
declare @lastcount int --总数%页大小 set @pageIndex = @tmpCounts/@pageSize
set @lastcount = @tmpCounts%@pageSize
if @lastcount > 0
set @pageIndex = @pageIndex + 1
else
set @lastcount = @pagesize --//***显示分页
if @strCondition is null or @strCondition='' --没有设置显示条件
begin
if @pageIndex<2 or @page<=@pageIndex / 2 + @pageIndex % 2 --前半部分数据处理
begin
set @strTmp=@SqlSelect+' top '+ CAST(@pageSize as NVARCHAR(4))+' '+ @fldName+' from '+@tblName
+' where '+@ID+' not in('+ @SqlSelect+' top '+ CAST(@pageSize*(@page-1) as NVarchar(20)) +' '+ @ID +' from '+@tblName
+' order by '+ @fldSort +' '+ @strFSortType+')'
+' order by '+ @fldSort +' '+ @strFSortType
end
else
begin
set @page = @pageIndex-@page+1 --后半部分数据处理
if @page <= 1 --最后一页数据显示
set @strTmp=@SqlSelect+' * from ('+@SqlSelect+' top '+ CAST(@lastcount as NVARCHAR(4))+' '+ @fldName+' from '+@tblName
+' order by '+ @fldSort +' '+ @strSortType+') AS TempTB'+' order by '+ @fldSort +' '+ @strFSortType
else
set @strTmp=@SqlSelect+' * from ('+@SqlSelect+' top '+ CAST(@pageSize as NVARCHAR(4))+' '+ @fldName+' from '+@tblName
+' where '+@ID+' not in('+ @SqlSelect+' top '+ CAST(@pageSize*(@page-2)+@lastcount as NVarchar(20)) +' '+ @ID +' from '+@tblName
+' order by '+ @fldSort +' '+ @strSortType+')' +' order by '+ @fldSort +' '+ @strSortType+') AS TempTB'+' order by '+ @fldSort +' '+ @strFSortType
end
end else --有查询条件
begin
if @pageIndex<2 or @page<=@pageIndex / 2 + @pageIndex % 2 --前半部分数据处理
begin
set @strTmp=@SqlSelect+' top '+ CAST(@pageSize as NVARCHAR(4))+' '+ @fldName +' from '+@tblName
+' where '+@ID+' not in('+ @SqlSelect+' top '+ CAST(@pageSize*(@page-1) as NVarchar(20)) +' '+ @ID +' from '+@tblName
+' Where (1>0) ' + @strCondition + ' order by '+ @fldSort +' '+ @strFSortType+')'
+' ' + @strCondition + ' order by '+ @fldSort +' '+ @strFSortType
end
else
begin
set @page = @pageIndex-@page+1 --后半部分数据处理
if @page <= 1 --最后一页数据显示
set @strTmp=@SqlSelect+' * from ('+@SqlSelect+' top '+ CAST(@lastcount as NVARCHAR(4))+' '+ @fldName+' from '+@tblName
+' where (1>0) '+ @strCondition +' order by '+ @fldSort +' '+ @strSortType+') AS TempTB'+' order by '+ @fldSort +' '+ @strFSortType
else
set @strTmp=@SqlSelect+' * from ('+@SqlSelect+' top '+ CAST(@pageSize as NVARCHAR(4))+' '+ @fldName+' from '+@tblName
+' where '+@ID+' not in('+ @SqlSelect+' top '+ CAST(@pageSize*(@page-2)+@lastcount as NVarchar(20)) +' '+ @ID +' from '+@tblName
+' where (1>0) '+ @strCondition +' order by '+ @fldSort +' '+ @strSortType+')'
+ @strCondition +' order by '+ @fldSort +' '+ @strSortType+') AS TempTB'+' order by '+ @fldSort +' '+ @strFSortType
end
end------返回查询结果-----
exec sp_executesql @strTmp
--print @strTmp
SET NOCOUNT OFF GO
程序调用:public static DataSet RunProcedureGetDataSetAndRowCount(string storedProcName, IDataParameter[] parameters, string returnpara, out int pageCount)
{
using (SqlConnection connection = new SqlConnection(connectionString))
{
SqlCommand myCommand = new SqlCommand(storedProcName, connection);
myCommand.Parameters.AddRange(parameters);
myCommand.CommandType = CommandType.StoredProcedure;
DataSet ds = new DataSet();
SqlDataAdapter adapter = new SqlDataAdapter(myCommand);
adapter.Fill(ds); //执行到这里报错
pageCount = int.Parse(myCommand.Parameters[returnpara].Value.ToString()); return ds;
}
}应该是@tblName这个参数的值被截断了,参数的长度大概只有200左右(中文已计算2个长度在内),数据表都是中文的,这个没多大关系吧,反正当时我在分析器中测试这个存储过程是没问题的!
{
using (SqlConnection connection = new SqlConnection(connectionString))
{
connection.Open();
SqlCommand myCommand = new SqlCommand(storedProcName, connection);
myCommand.Parameters.AddRange(parameters);
myCommand.CommandType = CommandType.StoredProcedure;
DataSet ds = new DataSet();
SqlDataAdapter adapter = new SqlDataAdapter(myCommand);
adapter.Fill(ds);
pageCount = int.Parse(myCommand.Parameters[returnpara].Value.ToString()); return ds;
}
}
感谢这位大大的回复,首先这个RunProcedureGetDataSetAndRowCount方法是本来就能正常使用的;其次我尝试了你的这个方法,但是错误仍然是这样.
提示是这样的:
'电极程式单 left join CAM程式单 on [电极程式单].Oid=[CAM程式单].Oid left join 单据编号 on [电极程式单].Oid=[单据编号].Oid left join 公式计算集合 on [电极程式单].Oid=公式计算集' 附近有语法错误。这个是存储过程第一个参数,这个参数完整的值是:
'电极程式单 left join CAM程式单 on [电极程式单].Oid=[CAM程式单].Oid left join 单据编号 on [电极程式单].Oid=[单据编号].Oid left join 公式计算集合 on [电极程式单].Oid=公式计算集合.Oid left join 零件 on 电极程式单.零件=零件.Oid left join 设计委托任务 on 电极程式单.设计委托任务=设计委托任务.Oid left join 生产任务 on 设计委托任务.生产任务=生产任务.Oid left join 生产任务模具 on 生产任务.生产模具=生产任务模具.单据编码'
少了一大截...另外,csdn怎么这么卡?开个页面有些还显示不了,回复超慢啊