Can't get 11g express up and running

Question

i installed 11g express, and sql developer, or oracle did. all i did was hit next a few times. but when i tried (using sql developer) to create a connection it gave a listener error 12505 with sid of orcl, and invalid connection string format when tried to use service name of oracle. what is the correct connection string? how do i set a sid?

Answer 1

Thank you for all your help.
I think (not sure) that I might be missing an entire entry that needs to go into the tnsnames.ora file.
When you say "try putting the IP address there temporarily to see if anything changes," what IP address should I use for "MyName-PC"? Is it 127.0.0.1?
No, not all of the Oracle Windows services were running according to the Windows services manager. Only two of the five Oracle services were started, so I started all of them (not sure if they need to be started), yet still the web page did not display.
Yes, I did find alert_xe.log, at C:\oraclexe\app\oracle\diag\rdbms\xe\xe\trace, and there was some good information there that came from the initial database creation as well as from activity after that. For example, here are a few parts of that file:
~ Full restore complete of datafile 2 to datafile copy C:\ORACLEXE\APP\ORACLE\ORADATA\XE\UNDOTBS1.DBF.
~ Errors in file C:\ORACLEXE\APP\ORACLE\diag\rdbms\xe\xe\trace\xe_ora_4164.trc:
~ WARNING: The following temporary tablespaces contain no files...TEMP
~ Fatal NI connect error 12638, connecting to: (DESCRIPTION=(LOCAL=YES)(ADDRESS=(PROTOCOL=beq)))...
The "restore complete of datafile" line (there were three more similar lines) is noteworthy because I deinstalled 10g and then installed 11g, so maybe stuff was left over from 10g and I need to do a complete deinstall of 11g, make sure everything is deleted, and then install 11g again. There were several lines that indicated I could find more errors in other trace files. The fatal NI connect error seems important too, but I have tried quite a few things over the last few days, so if I look into this, I will first reproduce it to get a current return of the error so I know the context of when it happens.
Here are some more details of the steps I took regarding the windows services. I went to Windows service manager (Control Panel > Administrative Tools > Services) and saw the following before I made any changes:
~ OracleJobSchedulerXE.........................Disabled
~ OracleMTSRecoveryService.....................Manual
~ OracleServiceXE................Started.......Automatic
~ OracleXEClrAgent.............................Manual
~ OracleXETNSListener............Started.......Automatic
Next, I did this:
1. started OracleXEClrAgent
2. started OracleMTSRecoveryService
3. changed startup type of OracleJobSchedulerXE from Disabled to Manual
4. started OracleJobSchedulerXE
Next, I pointed browser to URL http://127.0.0.1:8080/apex/f?p=4950 ==> "Internet Explorer cannot display webpage"
Given all of the above, I think I might de-install, make SURE everything is definitely gone, and then re-install.
I think there is something missing from the tnsnames.ora file. If I try to put an IP address in the part that says "(HOST = MyName-PC)", what IP address should I use for "MyName-PC"?
Edited by: 875773 on Aug 1, 2011 11:46 AM