如何一一并发运行sql查询
我正在开发类似于“每日SMS日志”的页面，用于检索有关在后台运行的SMS的信息。我有sql代码：
First Section
--SELECT ROW_NUMBER() OVER (ORDER BY RowId DESC)AS RowNumber,p.CampaignName,
-- p.MobileNo,
-- p.Message,
-- p.CharCount,
-- p.strSenderID as Sender,
-- u.strUserName as UserId,
-- ds.strDR as DeliveryStatus,
-- ds.strDiscription as Original_DRStatus,
-- m.strMessageType as MessageType,
-- CONVERT(varchar(20) , p.ReceiveTime) as ReceiveTime,
-- CONVERT(varchar(20) , p.SendTime) as SendTime,
-- CONVERT(varchar(20) , p.DoneTime) as DoneTime,
-- p.RootId as Root,
-- sp.ProviderName,
-- (CASE intAccountType WHEN 1 THEN 'Promotional' WHEN 2 THEN 'Transactional' WHEN 3 THEN 'OptIn' END) as AccountType
-- INTO #Results3
-- FROM NEWSMSLOG_2019_01..LOG_010119 p
-- INNER JOIN deliverstatus ds ON p.DeliveryStatus = ds.intDR_status inner join users u on u.id = p.userid
-- left join senderids b on b.id = p.senderid
-- left join messagetype m on m.intcode = p.messagetype
-- left join smppproviders sp on sp.RootId=p.RootId
-- where 1=1
Second Section
-- SELECT *
-- FROM #Results3
-- SELECT
-- CampaignName,MobileNo,Message,CharCount,Sender,UserId,DeliveryStatus,
-- Original_DRStatus,MessageType,ReceiveTime,SendTime,DoneTime,Root,ProviderName,AccountType
-- FROM #Results3
-- WHERE RowNumber BETWEEN('1' -1) * '109299' + 1 AND((('1' -1) * '109299' + 1) + '109299') - 1
在这里，当我取消注释第一行到1 = 1时，然后成功检索到行。在注释完这些行之后，我取消了第二部分的注释，然后结果显示了一堆行。现在，它可以在Management Studio中正常运行。 现在，我只想将此结果显示为网格视图，这是我的代码：
protected void Get_Data()
{
try
{
string str = "";
DataTable dt = new DataTable();
str = "SELECT ROW_NUMBER() OVER (ORDER BY RowId DESC)AS RowNumber,p.CampaignName,";
str += "p.MobileNo,";
str += "p.Message,";
str += "p.CharCount,";
str += "p.strSenderID as Sender,";
str += "u.strUserName as UserId,";
str += "ds.strDR as DeliveryStatus,";
str += "ds.strDiscription as Original_DRStatus,";
str += "m.strMessageType as MessageType,";
str += "CONVERT(varchar(20), p.ReceiveTime) as ReceiveTime,";
str += "CONVERT(varchar(20), p.SendTime) as SendTime,";
str += "CONVERT(varchar(20), p.DoneTime) as DoneTime,";
str += "p.RootId as Root,";
str += "sp.ProviderName,";
str += "(CASE intAccountType WHEN 1 THEN 'Promotional' WHEN 2 THEN 'Transactional' WHEN 3 THEN 'OptIn' END) as AccountType";
str += " INTO #Results3 ";
str += " FROM NEWSMSLOG_2019_01..LOG_010119 p ";
str += " INNER JOIN deliverstatus ds ON p.DeliveryStatus = ds.intDR_status inner join users u on u.id = p.userid";
str += " left join senderids b on b.id = p.senderid";
str += " left join messagetype m on m.intcode = p.messagetype";
str += " left join smppproviders sp on sp.RootId = p.RootId";
str += " where 1 = 1 ";
if(ddl_users.SelectedItem.Text.ToString() == "All")
{
str += string.Empty;
}
else
{
str += " and p.userid = ' + CONVERT(varchar(5),"+ Convert.ToInt32(ddl_users.SelectedValue.ToString())+") + '";
}
if (ddl_sender.SelectedItem.Text.ToString() == "All")
{
str += string.Empty;
}
else
{
str += " and p.Senderid = '+CONVERT(varchar(10),"+Convert.ToInt32(ddl_sender.SelectedValue.ToString())+")+'";
}
if(!string.IsNullOrEmpty(txt_mobileno.Text.Trim()))
{
str += " and p.MobileNo like '' % '"+txt_mobileno.Text.Trim()+"' % ''";
}
else
{
str += string.Empty;
}
if(ddl_delevery.SelectedItem.Text.ToString() =="All")
{
str += string.Empty;
}
else
{
str += " and p.Deliverystatus in ('+CONVERT(varchar(10),"+Convert.ToInt32(ddl_sender.SelectedValue.ToString())+")+')'";
}
if(!string.IsNullOrEmpty(txt_CompaignName.Text.Trim()))
{
str += " and p.CampaignName like ''%'"+txt_CompaignName.Text.Trim()+"'%'' '";
}
else
{
str += string.Empty;
}
if(ddl_account.SelectedItem.Text.ToString() == "All")
{
str += string.Empty;
}
else
{
str += " and p.accounttype = '+CONVERT(varchar(2),"+Convert.ToInt32(ddl_account.SelectedValue.ToString())+")+'";
}
obj.Execute_Querry(str);
string str1 = " SELECT * FROM #Results3";
str1 += " SELECT";
str1 += " CampaignName,MobileNo,Message,CharCount,Sender,UserId,DeliveryStatus,";
str1 += "Original_DRStatus,MessageType,ReceiveTime,SendTime,DoneTime,Root,ProviderName,AccountType";
str1 += " FROM #Results3";
str1 += " WHERE RowNumber BETWEEN('1' - 1) * '500' + 1 AND((('1' - 1) * '500' + 1) + '500') - 1";
str1 += " DROP TABLE #Results3";
dt = obj.Get_Data_Table_From_Str(str1);
ViewState["data"] = dt;
egrd.DataSource = dt;
egrd.DataBind();
ViewState["data"] = dt;
}
catch (Exception ex)
{
CommonLogic.SendMailOnError(ex);
}
}
但是在网格视图中没有找到记录。这是什么问题？
--------------------------已更新----------------- ---------------------------
namespace BulkSMSSystem.App_Code.DAL
{
public class DAL_General : DataAccess
{
public DataTable Get_Data_Table_From_Str(string str, string cnn_type = "NEWBULKSMS")
{
DataTable dt = new DataTable();
GetConnection(cnn_type);
dt = GetDataTableByQuerry(str);
return dt;
}
public void Execute_Querry(string str, string cnn_type = "NEWBULKSMS")
{
GetConnection(cnn_type);
GetExecuteNonQueryByStr(str);
}
public object Execute_Scalar(string str, string cnn_type = "NEWBULKSMS")
{
GetConnection(cnn_type);
object rtn = GetScalarOfStr(str);
return rtn;
}
---------------------------已更新2 --------------- ----------------------
public DataTable GetDataTableByQuerry(string str_querry)
{
try
{
mobj_SqlCommand.CommandText = str_querry;
mobj_SqlCommand.CommandTimeout = mint_CommandTimeout;
mobj_SqlCommand.CommandType = CommandType.Text;
//mobj_SqlConnection.Open();
SqlDataAdapter adpt = new SqlDataAdapter(mobj_SqlCommand);
DataTable ds = new DataTable();
adpt.Fill(ds);
return ds;
}
catch (Exception ex)
{
throw ex;
}
finally
{
CloseConnection();
}
}
public void GetExecuteNonQueryByStr(string querry_str)
{
try
{
mobj_SqlCommand.CommandType = CommandType.Text;
mobj_SqlCommand.CommandText = querry_str;
mobj_SqlCommand.Connection = mobj_SqlConnection;
mobj_SqlCommand.ExecuteNonQuery();
}
catch (Exception ex)
{
throw ex;
CloseConnection();
}
}
--------------------------已更新3 ---------------- -------------------
protected void GetConnection(string cnn_db = "NEWBULKSMS")
{
try
{
string Cnn_Str = "";
string ServerName = "SHREE-PC";
string DBUserName = string.Empty;
string DBPassword = string.Empty;
DBPassword += "c#" + Convert.ToChar(49);
string Database = cnn_db;
Cnn_Str = "Data Source=" + ServerName + "; UID=" + DBUserName + "; PWD=" + DBPassword + "; Database=" + Database+";Integrated Security = True";
//Cnn_Str = "Data Source=SHREE-PC;Initial Catalog=Project_DB_MNG;Integrated Security=True";
mstr_ConnectionString = Cnn_Str;
mobj_SqlConnection = new SqlConnection(mstr_ConnectionString);
mobj_SqlCommand = new SqlCommand();
mobj_SqlCommand.CommandTimeout = mint_CommandTimeout;
mobj_SqlCommand.CommandType = CommandType.StoredProcedure;
mobj_SqlCommand.Connection = mobj_SqlConnection;
mobj_SqlConnection.Open();
}
catch (Exception ex)
{
throw new Exception("Error initializing data class." + Environment.NewLine + ex.Message);
}
}
--------------------------上划线的4 ------------------- -------------------
1 个答案:
答案 0 :(得分：1)
当您使用带有一个#符号的临时表时，这意味着临时表将仅在您的会话期间存在。但是，如果您使用##创建一个临时表，那么每个用户都可以使用该表，其他人都不能创建具有相同名称的临时表，但是当所有者会话过期或断开连接。
因此请尝试在您的代码中使用
...
str += " INTO ##Results3 ";
...
并且：
string str1 = " SELECT * FROM ##Results3";
str1 += " SELECT";
str1 += " CampaignName,MobileNo,Message,CharCount,Sender,UserId,DeliveryStatus,";
str1 += "Original_DRStatus,MessageType,ReceiveTime,SendTime,DoneTime,Root,ProviderName
,AccountType";
str1 += " FROM ##Results3";
str1 += " WHERE RowNumber BETWEEN('1' - 1) * '500' + 1 AND((('1' - 1) * '500'
+ 1) + '500') - 1";
str1 += " DROP TABLE ##Results3";
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