Im trying to make a JDBC connection to my Oracle DB.
It works fine through TOAD but when im trying to establish the connection through JDBC it gives me the below error
"IO Error: The Network Adapter could not establish the connection"
The syntax of the url and details provided in the url is correctly picked up from TNS file.
when I ping the hostname it connects but with telnet it gives me error
"Could not open connection to the host,on port 1521:Connect failed"
Possible issues will be.
(a) Check if the database is up. Most of the times, database will not be up causing this issue.
(b) Check if you are able to connect using sqlplus
Related
Getting the error:
IO Error: A connection attempt failed because the connected party did not respond after a period of time, or established connection failed because the connected host has failed to respond.
Authentication lapse 0ms.
update: even though I am connecting to an Oracle 19c database when I change the driver to the one before oracle 11.2 it works i however still get a warning message however I would still like it to work with the recent driver is there anything I need to configure to get it to work.
I'm facing this problem while working with SQL Developer:
Status: Failure-Test failed refused the connection with the following error:ORA-12505:
Your database is not configured to listen on a given hostname/port or uses different sid. Use Oracle Net Configuration Assistant to verify that your db is configured correctly
Does Jetbrains 0xDBe support logging in to SQL Server with Windows Authentication?
I'm using a Mac running OS X Mavericks and attempting to connect to our corporate staging database over a VPN. Lots to go wrong there...
Right now my URL looks like this:
jdbc:sqlserver://10.11.222.333:12345
I've tried setting integratedSecurity to true, and also tried specifying a domain in the URL:
jdbc:sqlserver://10.11.222.333:12345;domain=MyDomain
No matter what, when I test the connection it just times out with this error:
Connection to Staging failed
java.sql.SQLException: The TCP/IP connection to the host 10.11.222.333, port 12345 has failed. Error: "connect timed out. Verify the connection properties. Make sure that an instance of SQL Server is running on the host and accepting TCP/IP connections at the port. Make sure that TCP connections to the port are not blocked by a firewall.".
at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDriverError(SQLServerException.java:190)
at com.microsoft.sqlserver.jdbc.SQLServerException.ConvertConnectExceptionToSQLServerException(SQLServerException.java:241)
at com.microsoft.sqlserver.jdbc.SocketFinder.findSocket(IOBuffer.java:2243)
at com.microsoft.sqlserver.jdbc.TDSChannel.open(IOBuffer.java:491)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.connectHelper(SQLServerConnection.java:1309)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.login(SQLServerConnection.java:991)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.connect(SQLServerConnection.java:827)
at com.microsoft.sqlserver.jdbc.SQLServerDriver.connect(SQLServerDriver.java:1012)
in RemoteDriverImpl.connect(RemoteDriverImpl.java:27)
in RemoteUtil.access$100(RemoteUtil.java:36)
in RemoteUtil$RemoteInvocationHandler.invoke(RemoteUtil.java:227)
at com.sun.proxy.$Proxy84.connect(Unknown Source)
in LocalDataSource.getConnection(LocalDataSource.java:240)
Any suggestions?
I was experiencing the same issues but finally found the fix by adding the domain to the jTds driver advanced settings in the 'Manage Data Sources' window.
Then using the following connection string:
jdbc:jtds:sqlserver://<SERVER>:<PORT>;integratedSecurity=true;authenticationScheme=JavaKerberos
or for connecting to a named instance:
jdbc:jtds:sqlserver://<SERVER>;instance=<NAMED_INSTANCE>;integratedSecurity=true;authenticationScheme=JavaKerberos
While am connecting to Oracle database from SQLDeveloper, am getting this error "Status : Failure -Test failed: IO Error: The Network Adapter could not establish the connection." But am able to connect to the database from SQL command promt. Can someone help me on this.
may be several problems
The database isn't running
You got the URL wrong
There is a firewall in the way
When I am trying to establish the connection to remote DB from JSP, I get the error TNS:could not resolve the connect identifier specified
I have configured the ODBC driver and tested the connection and it is working fine. Even the DB is also working fine. The only problem that I am facing is while connecting to remote DB from JSP using JDBC connections.
Also checked TNSNAMES.ORA and SQLnet.ora files, they are fine.
Please help me in getting this problem resolved.
Thanks
If you use JDBC OCI driver, verify your ORACLE_HOME variable (and TNS_ADMIN if exists) and be sure you can connect using sqlplus.
Check your URL http://docs.oracle.com/cd/E11882_01/java.112/e16548/urls.htm#BEIDBFDF