sqldeveloper error message: Network adapter could not establish the connection error

Question

I had made connection to the remote oracle database through sqldeveloper on my system. Suddenly the power went down and I had to restart the system. Now, when I am trying t

Answer 1

I have had the same problem. I am using windows 7 and this should also work for windows 8. The services responsible for the TNS listener and database were stopped when I looked in the Task Manager.

1: Hit Ctrl-Alt-Del and select "Start Task Manager".

From there go to the "Services" tab.

There are 5 services that need to be running for the database to be accessed correctly.

In the list below "databasename" is the database name you assigned during creation without the quotes.

I am also using database 11g, if you are using another type those fields would be different below. the * after home is the home install, if you have more than 1 database there would be home1, and home2

These are the 5 services

1. OracleVssWriter"databasename"
2. OracleService"databasename"
3. OracleOraDb11g_home*TNSListener
4. OracleOraDb11g_home*ClrAgent
5. OracleDBConsole"databasename"

If any of these services are stopped right click on them and start them. After they have all started go back into SQL developer and re-try the connection and it should work.