脚本任务 C# 中的命令超时
[英]Command timeout in script task C#
问题描述
I get this timeout error:
我收到此超时错误：
Execution Timeout Expired.
Script task executes stored procedure that takes some time.脚本任务执行需要一些时间的存储过程。 If I change parameter in a stored procedure to retrieve less data then it works fine.如果我更改存储过程中的参数以检索更少的数据，那么它可以正常工作。 So I am assuming I have to increase the connection timeout in my code.所以我假设我必须在我的代码中增加连接超时。 But I don't know where exactly should I do that?但我不知道我到底应该在哪里做？
I tried to change Connect Timeout in connection manager - but it didn't help.我试图在连接管理器中更改Connect Timeout - 但它没有帮助。
I also tried this:我也试过这个：
cmd.CommandTimeout = 500;
But still - no success.但仍然 - 没有成功。
I guess I need to do that somewhere in a code:我想我需要在代码中的某个地方这样做：
public void Main()
{
string datetime = DateTime.Now.ToString("yyyyMMddHHmmss");
DateTime startDate = DateTime.Now.AddMonths(-1).AddDays(1 - DateTime.Now.Day);
DateTime endDate = startDate.AddMonths(1).AddDays(-1);
//var now = DateTime.Now;
//var firstDayCurrentMonth = new DateTime(now.Year, now.Month, 1);
//var lastDayLastMonth = firstDayCurrentMonth.AddDays(-1);
try
{
//Declare Variables
// string ExcelFileName = Dts.Variables["User::ExcelFileName"].Value.ToString() +" "+ String.Format("{0:M-d-yyyy}", endDate);
string ExcelFileName = Dts.Variables["User::NewExcelFileName"].Value.ToString();
string FolderPath = Dts.Variables["User::FolderPath"].Value.ToString();
string StoredProcedureName = Dts.Variables["User::StoredProcedureName"].Value.ToString();
string SheetName = Dts.Variables["User::SheetName"].Value.ToString();
string connStringDB = "MyConnString";
string excelConn = String.Format("Provider=Microsoft.ACE.OLEDB.12.0;Data Source={0}{1};Mode=ReadWrite;Extended Properties='Excel 12.0 Xml;HDR=YES';", FolderPath, ExcelFileName);
using (var conn = new SqlConnection(connStringDB))
using (var command = new SqlCommand(StoredProcedureName, conn)
{
CommandType = CommandType.StoredProcedure
})
{
conn.Open();
string queryString = String.Format("EXEC {0}", StoredProcedureName);
SqlDataAdapter adapter = new SqlDataAdapter(queryString, conn);
DataSet ds = new DataSet();
adapter.Fill(ds);
//Get Header Columns
string TableColumns = "";
// Get the Column List from Data Table so can create Excel Sheet with Header
foreach (DataTable table in ds.Tables)
{
foreach (DataColumn column in table.Columns)
{
TableColumns += column + "],[";
}
}
conn.Close();
// Replace most right comma from Columnlist
//TableColumns = ("[" + TableColumns.Replace(",", " Text,").TrimEnd(','));
TableColumns = ("[" + TableColumns.Replace(",", " text,").TrimEnd(','));
TableColumns = TableColumns.Remove(TableColumns.Length - 2);
//Use OLE DB Connection and Create Excel Sheet
using (OleDbConnection connODB = new OleDbConnection(excelConn))
{
connODB.Open();
OleDbCommand cmd = new OleDbCommand();
cmd.Connection = connODB;
cmd.CommandTimeout = 500; //Entered by Oleg
cmd.CommandText = String.Format("Create table {0} ({1})", SheetName, TableColumns);
cmd.ExecuteNonQuery();
foreach (DataTable table in ds.Tables)
{
String sqlCommandInsert = "";
String sqlCommandValue = "";
foreach (DataColumn dataColumn in table.Columns)
{
sqlCommandValue += dataColumn + "],[";
}
sqlCommandValue = "[" + sqlCommandValue.TrimEnd(',');
sqlCommandValue = sqlCommandValue.Remove(sqlCommandValue.Length - 2);
sqlCommandInsert = String.Format("INSERT INTO {0} ({1}) VALUES (", SheetName, sqlCommandValue);
int columnCount = table.Columns.Count;
foreach (DataRow row in table.Rows)
{
string columnvalues = "";
for (int i = 0; i < columnCount; i++)
{
int index = table.Rows.IndexOf(row);
var a = table.Rows[index].ItemArray[i].ToString().Replace("'", "''");
columnvalues += "'" + a + "',";
//columnvalues += "'" + table.Rows[index].ItemArray[i] + "',";
}
columnvalues = columnvalues.TrimEnd(',');
var command2 = sqlCommandInsert + columnvalues + ")";
cmd.CommandText = command2;
cmd.ExecuteNonQuery();
}
}
conn.Close();
}
}
Dts.TaskResult = (int)ScriptResults.Success;
}
catch (Exception exception)
{
// Create Log File for Errors
using (StreamWriter sw = System.IO.File.CreateText(Dts.Variables["User::FolderPath"].Value.ToString() + "\\" +
Dts.Variables["User::ExcelFileName"].Value.ToString() + datetime + ".log"))
{
sw.WriteLine(exception.ToString());
Dts.TaskResult = (int)ScriptResults.Failure;
}
}
}
#region ScriptResults declaration
/// <summary>
/// This enum provides a convenient shorthand within the scope of this class for setting the
/// result of the script.
///
/// This code was generated automatically.
/// </summary>
enum ScriptResults
{
Success = Microsoft.SqlServer.Dts.Runtime.DTSExecResult.Success,
Failure = Microsoft.SqlServer.Dts.Runtime.DTSExecResult.Failure
};
#endregion
}
}
1 个解决方案
解决方案1
2 已采纳 2019-02-04 18:42:00
Try to set the Command Timeout to 0 instead of 500尝试将命令超时设置为0而不是500
cmd.CommandTimeout = 0;
And also you have to set the SQLAdapter timeout:而且您还必须设置 SQLAdapter 超时：
adapter.SelectCommand.CommandTimeout = 0;
Based on the official documentation基于官方文档
A value of 0 indicates no limit (an attempt to execute a command will wait indefinitely).
You code should look like:您的代码应如下所示：
public void Main()
{
string datetime = DateTime.Now.ToString("yyyyMMddHHmmss");
DateTime startDate = DateTime.Now.AddMonths(-1).AddDays(1 - DateTime.Now.Day);
DateTime endDate = startDate.AddMonths(1).AddDays(-1);
//var now = DateTime.Now;
//var firstDayCurrentMonth = new DateTime(now.Year, now.Month, 1);
//var lastDayLastMonth = firstDayCurrentMonth.AddDays(-1);
try
{
//Declare Variables
// string ExcelFileName = Dts.Variables["User::ExcelFileName"].Value.ToString() +" "+ String.Format("{0:M-d-yyyy}", endDate);
string ExcelFileName = Dts.Variables["User::NewExcelFileName"].Value.ToString();
string FolderPath = Dts.Variables["User::FolderPath"].Value.ToString();
string StoredProcedureName = Dts.Variables["User::StoredProcedureName"].Value.ToString();
string SheetName = Dts.Variables["User::SheetName"].Value.ToString();
string connStringDB = "MyConnString";
string excelConn = String.Format("Provider=Microsoft.ACE.OLEDB.12.0;Data Source={0}{1};Mode=ReadWrite;Extended Properties='Excel 12.0 Xml;HDR=YES';", FolderPath, ExcelFileName);
using (var conn = new SqlConnection(connStringDB))
using (var command = new SqlCommand(StoredProcedureName, conn)
{
CommandType = CommandType.StoredProcedure
})
{
conn.Open();
string queryString = String.Format("EXEC {0}", StoredProcedureName);
SqlDataAdapter adapter = new SqlDataAdapter(queryString, conn);
DataSet ds = new DataSet();
adapter.SelectCommand.CommandTimeout = 0;
adapter.Fill(ds);
//Get Header Columns
string TableColumns = "";
// Get the Column List from Data Table so can create Excel Sheet with Header
foreach (DataTable table in ds.Tables)
{
foreach (DataColumn column in table.Columns)
{
TableColumns += column + "],[";
}
}
conn.Close();
// Replace most right comma from Columnlist
//TableColumns = ("[" + TableColumns.Replace(",", " Text,").TrimEnd(','));
TableColumns = ("[" + TableColumns.Replace(",", " text,").TrimEnd(','));
TableColumns = TableColumns.Remove(TableColumns.Length - 2);
//Use OLE DB Connection and Create Excel Sheet
using (OleDbConnection connODB = new OleDbConnection(excelConn))
{
connODB.Open();
OleDbCommand cmd = new OleDbCommand();
cmd.Connection = connODB;
cmd.CommandTimeout = 0; //Entered by Oleg
cmd.CommandText = String.Format("Create table {0} ({1})", SheetName, TableColumns);
cmd.ExecuteNonQuery();
foreach (DataTable table in ds.Tables)
{
String sqlCommandInsert = "";
String sqlCommandValue = "";
foreach (DataColumn dataColumn in table.Columns)
{
sqlCommandValue += dataColumn + "],[";
}
sqlCommandValue = "[" + sqlCommandValue.TrimEnd(',');
sqlCommandValue = sqlCommandValue.Remove(sqlCommandValue.Length - 2);
sqlCommandInsert = String.Format("INSERT INTO {0} ({1}) VALUES (", SheetName, sqlCommandValue);
int columnCount = table.Columns.Count;
foreach (DataRow row in table.Rows)
{
string columnvalues = "";
for (int i = 0; i < columnCount; i++)
{
int index = table.Rows.IndexOf(row);
var a = table.Rows[index].ItemArray[i].ToString().Replace("'", "''");
columnvalues += "'" + a + "',";
//columnvalues += "'" + table.Rows[index].ItemArray[i] + "',";
}
columnvalues = columnvalues.TrimEnd(',');
var command2 = sqlCommandInsert + columnvalues + ")";
cmd.CommandTimeout = 0;
cmd.CommandText = command2;
cmd.ExecuteNonQuery();
}
}
conn.Close();
}
}
Dts.TaskResult = (int)ScriptResults.Success;
}
catch (Exception exception)
{
// Create Log File for Errors
using (StreamWriter sw = System.IO.File.CreateText(Dts.Variables["User::FolderPath"].Value.ToString() + "\\" +
Dts.Variables["User::ExcelFileName"].Value.ToString() + datetime + ".log"))
{
sw.WriteLine(exception.ToString());
Dts.TaskResult = (int)ScriptResults.Failure;
}
}
}
#region ScriptResults declaration
/// <summary>
/// This enum provides a convenient shorthand within the scope of this class for setting the
/// result of the script.
///
/// This code was generated automatically.
/// </summary>
enum ScriptResults
{
Success = Microsoft.SqlServer.Dts.Runtime.DTSExecResult.Success,
Failure = Microsoft.SqlServer.Dts.Runtime.DTSExecResult.Failure
};
#endregion
}
}
Reference参考
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