我想通过 表posts里的一个字段查询出全部对应的信息int liangPostId;
string liangName;
string liangContent;
int articleId;
DateTime liangDateTime;对应sql:select count(*) from posts where articleId = ?
存储过程:ALTER PROCEDURE [dbo].[LiangPage]
@TableList Varchar(200)='*',--搜索表的字段,比如:’id,datatime,job‘,用逗号隔开
@TableName Varchar(30), --搜索的表名
@SelectWhere Varchar(500)='',--搜索条件,这里不用写where,比如:job=’teacher‘and class='2'
@SelectOrderId Varchar(20),--表主键字段名。比如:id
@SelectOrder Varchar(200)='', --排序,可以使用多字段排序但主键字段必需在最前面.也可以不写,比如:order by class asc
@intPageNo int=1, --页号
@intPageSize int=10 ,--每页显示数
@RecordCount int OUTPUT --总记录数(存储过程输出参数)
as
declare @TmpSelect NVarchar(600)
declare @Tmp NVarchar(600) set nocount on--关闭计数 set @TmpSelect = 'select @RecordCount = count(*) from '+@TableName+' '+@SelectWhere execute sp_executesql
@TmpSelect, --执行上面的sql语句
N'@RecordCount int OUTPUT' , --执行输出数据的sql语句,output出总记录数
@RecordCount OUTPUT
if (@RecordCount = 0) --如果没有贴子,则返回零
return 0
/*判断页数是否正确*/
if (@intPageNo - 1) * @intPageSize > @RecordCount --页号大于总页数,返回错误
return (-1)
set nocount off--打开计数
if @SelectWhere != ''
begin
set @TmpSelect = 'select top '+str(@intPageSize)+' '+@TableList+' from '+@TableName+' where '+@SelectOrderId+' not in(select top '+str((@intPageNo-1)*@intPageSize)+' '+@SelectOrderId+' from '+@TableName+' '+@SelectWhere +' '+@SelectOrder+') and '+@SelectWhere +' '+@SelectOrder
end
else
begin
set @TmpSelect = 'select top '+str(@intPageSize)+' '+@TableList+' from '+@TableName+' where '+@SelectOrderId+' not in(select top '+str((@intPageNo-1)*@intPageSize)+' '+@SelectOrderId+' from '+@TableName+' '+@SelectOrder+') '+@SelectOrder
end
execute sp_executesql @TmpSelect
return(@@rowcount) 。cs代码:public DataSet GetPostPage(int pageIndex, int pageSize, string strWhere, out int RecordCount)
{ SqlParameter[] spt = {
new SqlParameter("@TableList", SqlDbType.VarChar),//查询表的列名 显示
new SqlParameter("@TableName", SqlDbType.VarChar),//表名
new SqlParameter("@SelectOrderId", SqlDbType.VarChar),//根据什么进行排序 Id
new SqlParameter("@SelectOrder", SqlDbType.VarChar),//排序
new SqlParameter("@intPageNo", SqlDbType.Int),//页号
new SqlParameter("@intPageSize", SqlDbType.Int),//每页显示数
new SqlParameter("@RecordCount", SqlDbType.Int),//每页显示数
new SqlParameter("RowCount", SqlDbType.Int),//每页显示数 new SqlParameter("@SelectWhere", SqlDbType.VarChar)//条件查询 }; spt[0].Value = "Liang_Name,Liang_Content,Liang_DateTime";
spt[1].Value = "posts";
spt[2].Value = "Liang_PostId";
spt[3].Value = "ORDER BY Liang_PostId ASC";
spt[4].Value = pageIndex;
spt[5].Value = pageSize;
spt[6].Direction = ParameterDirection.Output;
spt[7].Direction = ParameterDirection.ReturnValue; spt[8].Value = "ArticleId =" + strWhere + "";//条件查询 DataSet ds = DBHelper.GetDataSet(DBHelper.ConnectionStringLocalTransaction, CommandType.StoredProcedure, "LiangPage", spt); RecordCount = Convert.ToInt32(spt[6].Value); return ds; }出错:spt[8].Value = "ArticleId =" + strWhere + "";//条件查询条件这里怎么写也不对。
我觉得应该是存储过程有问题
但是我应该怎么修正第一次写存储分页。很郁闷
希望帮下我 谢谢!
string liangName;
string liangContent;
int articleId;
DateTime liangDateTime;对应sql:select count(*) from posts where articleId = ?
存储过程:ALTER PROCEDURE [dbo].[LiangPage]
@TableList Varchar(200)='*',--搜索表的字段,比如:’id,datatime,job‘,用逗号隔开
@TableName Varchar(30), --搜索的表名
@SelectWhere Varchar(500)='',--搜索条件,这里不用写where,比如:job=’teacher‘and class='2'
@SelectOrderId Varchar(20),--表主键字段名。比如:id
@SelectOrder Varchar(200)='', --排序,可以使用多字段排序但主键字段必需在最前面.也可以不写,比如:order by class asc
@intPageNo int=1, --页号
@intPageSize int=10 ,--每页显示数
@RecordCount int OUTPUT --总记录数(存储过程输出参数)
as
declare @TmpSelect NVarchar(600)
declare @Tmp NVarchar(600) set nocount on--关闭计数 set @TmpSelect = 'select @RecordCount = count(*) from '+@TableName+' '+@SelectWhere execute sp_executesql
@TmpSelect, --执行上面的sql语句
N'@RecordCount int OUTPUT' , --执行输出数据的sql语句,output出总记录数
@RecordCount OUTPUT
if (@RecordCount = 0) --如果没有贴子,则返回零
return 0
/*判断页数是否正确*/
if (@intPageNo - 1) * @intPageSize > @RecordCount --页号大于总页数,返回错误
return (-1)
set nocount off--打开计数
if @SelectWhere != ''
begin
set @TmpSelect = 'select top '+str(@intPageSize)+' '+@TableList+' from '+@TableName+' where '+@SelectOrderId+' not in(select top '+str((@intPageNo-1)*@intPageSize)+' '+@SelectOrderId+' from '+@TableName+' '+@SelectWhere +' '+@SelectOrder+') and '+@SelectWhere +' '+@SelectOrder
end
else
begin
set @TmpSelect = 'select top '+str(@intPageSize)+' '+@TableList+' from '+@TableName+' where '+@SelectOrderId+' not in(select top '+str((@intPageNo-1)*@intPageSize)+' '+@SelectOrderId+' from '+@TableName+' '+@SelectOrder+') '+@SelectOrder
end
execute sp_executesql @TmpSelect
return(@@rowcount) 。cs代码:public DataSet GetPostPage(int pageIndex, int pageSize, string strWhere, out int RecordCount)
{ SqlParameter[] spt = {
new SqlParameter("@TableList", SqlDbType.VarChar),//查询表的列名 显示
new SqlParameter("@TableName", SqlDbType.VarChar),//表名
new SqlParameter("@SelectOrderId", SqlDbType.VarChar),//根据什么进行排序 Id
new SqlParameter("@SelectOrder", SqlDbType.VarChar),//排序
new SqlParameter("@intPageNo", SqlDbType.Int),//页号
new SqlParameter("@intPageSize", SqlDbType.Int),//每页显示数
new SqlParameter("@RecordCount", SqlDbType.Int),//每页显示数
new SqlParameter("RowCount", SqlDbType.Int),//每页显示数 new SqlParameter("@SelectWhere", SqlDbType.VarChar)//条件查询 }; spt[0].Value = "Liang_Name,Liang_Content,Liang_DateTime";
spt[1].Value = "posts";
spt[2].Value = "Liang_PostId";
spt[3].Value = "ORDER BY Liang_PostId ASC";
spt[4].Value = pageIndex;
spt[5].Value = pageSize;
spt[6].Direction = ParameterDirection.Output;
spt[7].Direction = ParameterDirection.ReturnValue; spt[8].Value = "ArticleId =" + strWhere + "";//条件查询 DataSet ds = DBHelper.GetDataSet(DBHelper.ConnectionStringLocalTransaction, CommandType.StoredProcedure, "LiangPage", spt); RecordCount = Convert.ToInt32(spt[6].Value); return ds; }出错:spt[8].Value = "ArticleId =" + strWhere + "";//条件查询条件这里怎么写也不对。
我觉得应该是存储过程有问题
但是我应该怎么修正第一次写存储分页。很郁闷
希望帮下我 谢谢!
SQL code create procedure SqlDataPaging @tbName varchar(255), --表名 @tbFields varchar(1000), --返回字段 @OrderField varchar(255), --排序的字段名 @PageSize int, --页尺寸 @PageIndex int, --页码 @OrderType bit, --排序类型,1是升序,0是降序 @strWhere varchar(1500), --查询条件 @Total int output --返回总记录数 as declare @strSql varchar(5000) --主语句 declare @strOrder varchar(200) --排序 declare @strSqlCount nvarchar(500)--查询记录总数主语句 declare @strtemp varchar(50) --排序附加语句 --------------排序-----------------1是降序,0未升序 if @OrderType !=0 begin set @strtemp= '>(select max(' set @strOrder='order by ' + @OrderField + ' asc ' end else begin set @strtemp= '<(select min(' set @strOrder='order by '+ @OrderField + ' desc' end --------------总记录数--------------- if @strWhere !='' begin set @strSqlCount='Select @TotalCout=count(*) from ' + @tbName + 'where '+ @strWhere end else begin set @strSqlCount='Select @TotalCout=count(*) from ' + @tbName end --------------如果是第一页------------ if @PageIndex =1 begin if @strWhere !='' begin set @strSql = 'Select top' +str(@PageSize)+ ' ' + @tbFields + ' from '+ @tbName +' where ' + @strWhere + ' ' + @strOrder end else begin set @strSql = 'Select top' +str(@PageSize)+ ' ' + @tbFields + ' from '+ @tbName + ' ' + @strOrder end end else begin if @strWhere !='' begin set @strSql='Select top ' +str(@PageSize) + ' ' + @tbFields +' from ' + @tbName + ' where '+@OrderField +' ' + @strtemp+ ' ' +@OrderField+ ') from (select top' +str((@PageIndex-1)*@PageSize) + ' '+@OrderField +' from '+@tbName + @strWhere+ ' '+ @strOrder +') as tb)'+ @strOrder end else begin set @strSql='Select top ' + str(@PageSize) + ' ' + @tbFields +' from ' + @tbName + ' where '+@OrderField + ' ' + @strtemp+ ' ' +@OrderField+ ') from (select top' +str((@PageIndex-1)*@PageSize) + ' '+@OrderField +' from '+@tbName + ' '+ @strOrder +') as tb)'+ @strOrder end end exec sp_executesql @strSqlCount,N'@TotalCout int output',@Total output exec(@strSql)
{
sqlCon.Open();
sqlComm = new SqlCommand("", sqlCon);
sqlComm.CommandType = CommandType.StoredProcedure;sqlComm.Parameters.Add("@tblName ", SqlDbType.VarChar,200);
sqlComm.Parameters.Add("@fldName ", SqlDbType.VarChar, 200);
sqlComm.Parameters.Add("@pageCountint ", SqlDbType.int);
...
sqlComm.Parameters["@pageCountint "].Direction = ParameterDirection.Output;
sqlComm.Parameters["@tblName "].Value = "";
sqlComm.Parameters["@fldName "].Value = "";
...
sqlComm.ExecuteNonQuery();
strng c= sqlComm.Parameters["@pageCountint "].Value.ToString();
}
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