What is Quartz? (什麼是Quartz?)Quartz is a full-featured, open source job scheduling system that can be integrated with, or used along side virtually any J2EE or J2SE application - from the smallest stand-alone application to the largest e-commerce
刪表時出了個ORA-00054: [scott@ORCL Session(422301)]#drop table t;drop table t *ERROR at line 1:ORA-00054: resource busy and acquire with NOWAIT specified or timeout expired解決方式如下:-------------------------------------------------------------------
Could not determine a MetaTable. A MetaTable could not be determined for the data source 'gvSqlDataSourceSG' and one could not be inferred from the request URL. Make sure that the table is mapped to the dats source, or that the data source is
下面這篇文章轉自微軟的網站,可以發現其中一個很聰明的技巧,藉此技巧也可以告訴我們如何?自己的CtrlView Q I made a custom control derived fromCWnd, and now I want to use it as a view. My first solution was toembed the control into the view and handle OnSize in the view toposition the control
關於"斷行符號"(carriage return)和"換行"(line feed)這兩個概念的來曆和區別。在電腦還沒有出現之前,有一種叫做電傳打字機(Teletype Model 33)的玩意,每秒鐘可以打10個字元。但是它有一個問題,就是打完一行換行的時候,要用去0.2秒,正好可以打兩個字元。要是在這0.2秒裡面,又有新的字元傳過來,那麼這個字元將丟失。
自從前兩天知道了可以用TAUCS來對sparse matrix運算以後,對其進行了很長時間的研究。反覆編譯了很多次,也下了precompiled的lib,可就是不成功。下午問了哥,終於搞定測試過程。 具體步驟大致如下: Using TAUCS from GUI Now it is also possible to compile and run the code from GUI by specifying the information above through the