connection

I am trying to import tables to my MATLAB workspace and it keeps throwing me an error, "Undefined function or method 'fetch' for input arguments of type 'struct'. " This is my code that i am trying to execute: dyn_conformer = exec(conn, 'SELECT * FROM dyn_conformer'); rs =fetch(dyn_conformer); When i opened the object in the workspace, it stated that it was "Invalid or closed connection" . However, previously i manage to import other tables and it seemed to execute perfectly (they are stored as a cursor object). All of a sudden, its throwing an error for other tables that i am trying to import

myBatis连接MySQL报错误：No operations allowed after connection closed.Connection was i www.MyException.Cn 发布于：2013-07-16 22:38:05 浏览：253次 0 myBatis连接MySQL报异常：No operations allowed after connection closed.Connection was i myBatis连接MySQL报异常：No operations allowed after connection closed.Connection was implicitly closed 异常信息 ? org.hibernate.exception.JDBCConnectionException: could not execute query at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:74) at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43) ....... Caused by: com.mysql.jdbc.exceptions

we use Weblogic server and always set autoCommit to 'false' when getting Connection to Oracle 10g. I want to know if there is a setting in Weblogic wherein it will automatically Commit transactions if a Commit or Rollback is not explicitly called from within application code. I heard similar setting exists in Websphere. It looks like you are not using either Container-managed or Bean-managed transactions. Or, for that matter, you are merely retrieving a connection from a DataSource and then disabling autocommit , without the initial establishment a transaction context; this implies that you

I am working on crawler and I have to extract data from 200-300 links on Google Scholar. I have working parser which is getting data from pages (on every pages are 1-10 people profiles as result of my query. I'm extracting proper links, go to another page and do it again). During run of my program I spotted above error: org.jsoup.HttpStatusException: HTTP error fetching URL. Status=503, URL=https://ipv4.google.com/sorry/IndexRedirect?continue=https://scholar.google.pl/citations%3Fmauthors%3DAGH%2BUniversity%2Bof%2BScience%2Band%2BTechnology%26hl%3Dpl%26view_op%3Dsearch_authors&q

I'm writing an application for android. My problem is that I want it to force the connection in GPRS and not use wi fi. I have a solution like below, but this causes the crash of the application at start. ConnectivityManager CM = (ConnectivityManager) this.getSystemService(Context.CONNECTIVITY_SERVICE); CM.setNetworkPreference(ConnectivityManager.TYPE_MOBILE); I also added the below setting lines into manifest file. uses-permission android:name="android.permission.WRITE_SETTINGS" uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" uses-permission android:name="android

My python can't connect to the Internet since last time my Windows updated. When I pip something , error goes like if host.startswith('['): AttributeError: 'NoneType' object has no attribute 'startswith' It is just that I can't pip anything on the Internet, anything. And then I thought maybe something went wrong with my system, so I tried checking if "requests" worked correctly. But hosts error goes like r = requests.get('http://www.baidu.com') Traceback (most recent call last): File "<stdin>", line 1, in <module> File "D:\Program Files (x86)\Anaconda3\lib\site-packages\requests\api.py", line

错误： Host is blocked because of many connection errors; unblock with 'mysqladmin flush-hosts' 原因： 　　同一个ip在短时间内产生太多（超过mysql数据库max_connection_errors的最大值）中断的数据库连接而导致的阻塞； 当连接错误次数过多时，mysql会禁止客户机连接 ,解决办法： 使用mysqladmin flush-hosts命令清除缓存，命令执行方法如下： 命令行或终端： mysqladmin -u root -p flush-hosts 或者 在mysql命令行下 执行： mysql> flush hosts; 来源： oschina 链接： https://my.oschina.net/u/1160259/blog/630412