搜尋結果
一旦TNS系统设备出现外壳带电，接零保护系统能将漏电电流上升为短路电流，这个电流很大，是TT 系统的5.3 倍，实际上就是单相对地短路故障，熔断器的熔丝会熔断，低压断路器的脱扣器会立即动作而跳闸，使故障设备断电，比较安全。
2013年4月5日 · Oracle SID is the unique name that uniquely identifies your instance/database where as Service name is the TNS alias that you give when you remotely connect to your database and this Service name is recorded in Tnsnames.ora file on your clients and it can be the same as SID and you can also give it any other name you want.
Restart your machine. For Windows 7, use the following to modify the LISTENER.ora: - Go to Start > All Programs > Accessories - Right click Notepad and then click Run as Administrator . - File>open and navigate to the tnsnames.ora file. - Make the changes then it should allow you to save.
2013年1月7日 · If you are using thin driver, ensure that your ojdbcX.jar file is in your build path. The steps to connect to Oracle data source using TNS Alias name are: Set System Property for oracle.net.tns_admin. This should point to the directory which has your tnsnames.ORA file. This should establish the Database connection.
2019年7月20日 · 1. If "tnsnames.ora" and "listener.ora" files looks fine and still you are getting errors then try the following simple steps. Go to start->Run [windows button + r] Type "services.msc". From the services window, try to find "OracleOraDb11g_home1TNSListener". Just right click on it and click on "start".
2012年11月13日 · According to oracle online documentation. ORA-12541: TNS:no listener. Cause: The connection request could not be completed because the listener is not running. Action: Ensure that the supplied destination address matches one of the addresses used by. the listener - compare the TNSNAMES.ORA entry with the appropriate LISTENER.ORA file (or.
2012年10月11日 · I'm not talking about your computer's domain. I'm talking about the NAMES.DEFAULT_DOMAIN from your sqlnet.ora file, whether or not there is a domain on the TNS alias in your tnsnames.ora file (the .WORLD in FOO.WORLD), and whether or not that domain is present on the TNS alias that you are using in both SQL*Plus and PL/SQL Developer.
2012年5月28日 · I restarted the TNS Listener service (I often use lsnrctl stop and lsnrctl start from an administrator command window [or Windows Powershell] instead of the Services control panel, but both work.) After that, I was able to connect.
2015年11月25日 · I presume, though I am no DBA, that this has something to do with my TNS Service Name not being in TNSNAMES.ORA which points oracle toward the right server, port, etc. However I cannot find TNSNAMES.ORA I have an ORACLE_HOME environment
2014年5月31日 · First, get hostname and port number by typing a command lsnrctl status on windows command prompt. In my case, it was 127.0.0.1 with port number as 1521. Second, enter the below command with your hostname and port number: sqlplus username/password@HostName:Port Number/PluggableDatabaseName. For example:
