Command: Update Error: Previous operation has not finished; run 'cleanup' if it was interrupted Error: Please execute the 'Cleanup' command. Completed!:
sqlite3.exe .svn/wc.db "select * from work_queue"qlite3.exe .svn/wc.db "delete from work_queue"<system.web>
<httpRuntime requestValidationMode="2.0" maxRequestLength="1024000"/>
</system.web>
public string UploadFilesToRemoteUrl(string url, string[] files, NameValueCollection formFields = null)
{
string boundary = "----------------------------" + DateTime.Now.Ticks.ToString("x");
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
request.ContentType = "multipart/form-data; boundary=" +
boundary;
request.Method = "POST";
request.KeepAlive = true;
Stream memStream = new System.IO.MemoryStream();
var boundarybytes = System.Text.Encoding.ASCII.GetBytes("\r\n--" +
boundary + "\r\n");
var endBoundaryBytes = System.Text.Encoding.ASCII.GetBytes("\r\n--" +
boundary + "--");
string formdataTemplate = "\r\n--" + boundary +
"\r\nContent-Disposition: form-data; name=\"{0}\";\r\n\r\n{1}";
if (formFields != null)
{
foreach (string key in formFields.Keys)
{
string formitem = string.Format(formdataTemplate, key, formFields[key]);
byte[] formitembytes = System.Text.Encoding.UTF8.GetBytes(formitem);
memStream.Write(formitembytes, 0, formitembytes.Length);
}
}
string headerTemplate =
"Content-Disposition: form-data; name=\"{0}\"; filename=\"{1}\"\r\n" +
"Content-Type: application/octet-stream\r\n\r\n";
for (int i = 0; i < files.Length; i++)
{
memStream.Write(boundarybytes, 0, boundarybytes.Length);
var header = string.Format(headerTemplate, "uplTheFile", files[i]);
var headerbytes = System.Text.Encoding.UTF8.GetBytes(header);
memStream.Write(headerbytes, 0, headerbytes.Length);
using (var fileStream = new FileStream(files[i], FileMode.Open, FileAccess.Read))
{
var buffer = new byte[1024];
var bytesRead = 0;
while ((bytesRead = fileStream.Read(buffer, 0, buffer.Length)) != 0)
{
Response.Write("bytesRead: " + bytesRead.ToString() + "<br>");
memStream.Write(buffer, 0, bytesRead);
}
}
}
memStream.Write(endBoundaryBytes, 0, endBoundaryBytes.Length);
request.ContentLength = memStream.Length;
using (Stream requestStream = request.GetRequestStream())
{
memStream.Position = 0;
byte[] tempBuffer = new byte[memStream.Length];
memStream.Read(tempBuffer, 0, tempBuffer.Length);
memStream.Close();
requestStream.Write(tempBuffer, 0, tempBuffer.Length);
}
try
{
using (var response = request.GetResponse())
{
Stream stream2 = response.GetResponseStream();
StreamReader reader2 = new StreamReader(stream2);
return reader2.ReadToEnd();
}
}
catch (Exception ex)
{
return (ex.ToString());
throw;
}
}
原寫法 (UNTDB 是 Linked Server的 Name)
mySQL = "Select count(*) as Cnt from [UNTDB].[ShopUNT]..[V_Order_Main] ....
新寫法
mySQL = "Select count(*) as Cnt from [ShopUNT]..[V_Order_Main] ....
mySQL = "Select * from Openquery([UNTDB],'" + mySQL.Replace("'", "''") + "')";
應用程式: w3wp.exe
Framework 版本: v4.0.30319
描述: 處理序已終止，因為有未處理的例外狀況。
例外狀況資訊: System.Exception
堆疊:
於 UW.SQL.DTFromSQL(System.String, System.String)
於 UW.SQL.DTFromSQL(System.String, System.Data.SqlClient.SqlConnection ByRef, Boolean)
於 SHOPUNT.DB.Product.RebuildNotStopProducDT()
於 System.Threading.ExecutionContext.runTryCode(System.Object)
於 System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode, CleanupCode, System.Object)
於 System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
於 System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
於 System.Threading.ThreadHelper.ThreadStart()
---------------------------------------------------------------------------------------------------------------------------------------
失敗的應用程式名稱: w3wp.exe，版本: 7.5.7601.17514，時間戳記: 0x4ce7afa2
失敗的模組名稱: KERNELBASE.dll，版本: 6.1.7601.18229，時間戳記: 0x51fb1677
例外狀況碼: 0xe0434352
錯誤位移: 0x000000000000940d
失敗的處理程序識別碼: 0x57c4
失敗的應用程式開始時間: 0x01d012faf33398f8
失敗的應用程式路徑: c:\windows\system32\inetsrv\w3wp.exe
失敗的模組路徑: C:\Windows\system32\KERNELBASE.dll
報告識別碼: 90ad2f4d-7f89-11e4-8ad2-e41f13b7d81e
SELECT s.name
FROM sys.schemas s
WHERE s.principal_id = USER_ID('YourUserID');
ALTER AUTHORIZATION ON SCHEMA::YourSchemaName TO dbo;
網站開發，善用 Cached DataTable 可以使網站效能倍增，不必一直去資料庫抓資料。
但是使用 Cached DataTable 有一個地方要注意
就是他是 Shared 物件，表示同時有好幾個頁面都可以存取他
例如A網頁將資料抓出，然後變更裡面的DataRow資料，
另一個B網頁也會跟著變更
由於 Cached DataTable 在 Set DataRow Value 時
可能 Critical Section 沒有處理好，若真的同時多個thread 操作
會出現 Exception
(System.ArgumentOutOfRangeException: 索引超出範圍。必須為非負數且小於集合的大小。)
建議:
'這是 UNT FixPage 物件抓取單一資料的範例
Shared Function GetSpecialPage2FromCachedDT(ByVal Key As Int32) As DB.SpecialPage2
Dim DT As DataTable = GetAllDataFromBaseTableWithCache()
Dim Row As DataRow = DT.Rows.Find(Key)
If Row IsNot Nothing Then
'避免每個thread都共用table 寫入資料會出現問題
Dim newDT As DataTable = DT.Clone()
newDT.ImportRow(Row)
Return New SpecialPage2(newDT.Rows(0))
Else
Return Nothing
End If
End Function