not able to connect to oracle database through sql developer

Oracle's official SQL Developer comes with Oracle migration Workbench. What is Oracle SQL Developer? On the official page, this is how it is presented: Oracle SQL Developer is a free and fully supported graphical tool for database

In recent times, many netizens raised questions about Listener Configuration, and the client cannot connect to the server ). This article briefly introduces the Listener Configuration, provides detailed configuration methods for PL/SQL developer to

In recent times, many users have raised the issue of monitoring configuration, client terminal (client) can not connect to the server side (server). This article is a brief introduction to the monitoring configuration, give the SQL Developer

In recent times, many netizens raised questions about Listener Configuration, and the Client cannot connect to the Server ). This article briefly introduces the Listener Configuration and provides PLSQL In recent times, many netizens raised

Oracle How to install and run Oracle on your Linux machine start action It can be pretty easy to install Oracle on Redhat, but if you follow Oracle company completely Documentation is not always easy to walk through. The quickest shortcut is Tom

The remote connection of Oracle database can be implemented in a variety of ways, this article mainly introduces four methods and considerations of remote connection, and through the examples to illustrate, then we begin to introduce.First case:If

Http://hi.baidu.com/%D3%C5%D3%CE%D7%D4%B5%C3/blog/item/512586f7b4c1e521720eecf9.html2007-10-27 In recent times, many netizens raised questions about Listener Configuration, and the client cannot connect to the server ). This article briefly

Original address: http://www.cnblogs.com/lyhabc/p/3367274.htmlBefore reading this article, you can read the following article firstSQL Server's unique task scheduling algorithm "Sqlos"Task Scheduler for SQL Server Sqlos [go]Translated

I, Listener (listener)Listener is a server-based network service of Oracle. It is mainly used to listen for connection requests from clients to database servers. Since it is a server-based service, it only exists on the database server, and listener

Install the Oracle client on ASP.. net. DLL, which I have encountered before. Just reinstall the client and I am using a 2000 Professional System ). Later, I went to the Oracle official website to find a solution and downloaded Oracle Developer