No listener, but with underline

I started a whole new installation of Oracle 11g from scratch in my windowsxp mode virtual machine with a hostname "winxp_vm1". Everything was going right until a moment when, almost 100% finished, a screen (not the blue of death) saying the Enterprise Manager could not be configured successfully (just) because the host name was composed by a underline character ("_"). I´ve got really, much really, surprised and yet disapointed with oracle installation. But the life goes on and I still need the Oracle running, OK?

But what to do now?


Just finish the installer;


Rename the hostname, I mean, remove the underline from the name;


Edit the tnsnames.ora and fix the hostname, now without the underline;


Edit the listener.ora and fix it the same way you did it before with tnsnames.ora;


Just restart the machine or the listener (lsnrctl start).

It was a piece of cake this time, but you can have differente situtations, so, dont give up. The Internet is an exceptional friend... Good bye.

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Save passwords security flaw in TOAD

I am a TOAD 9 user. A friend of mine said me using password saving in TOAD was not secure. Since then I've tried to find a solution to that, unsuccessfuly. The problem is: every password saved in your login session will be available for every login session at the same station. Any user who wants to use your passwords only have to log in into your station and acess the TOAD. Any connection can be made just selecting the schema and pressing Connect. If you have already saved a password before for the selected schema, voilá, the intruder is in.
I beg for your help to avoid this unwished behavior of TOAD. Let me know the workaround (or the final solution) ASAP you discover it. Best regards.

Installing Oracle 10g on Windows 7

When installing the Oracle 10g on Windows 7 I found some problems. So, after fixing them, I decided to share with you my experience.

First, Oracle asks for a network adapter with IP set (but can also use DHCP), so, I decided to install the ms loopback adapter on my notebook (dell inspiron 1525):

I. Install the ms loopback adapter

If your "Add Device" feature is presenting problem, I mean freezing (like mine was), use the Hardware Wizard, from the command prompt:

1. Click the Start menu.
2. Search for “cmd".
3. Right-click on “cmd” and select “Run as Administrator”
4. Enter “hdwwiz।exe”
5. In the "Welcome to the Add Hardware Wizard", click Next.
6. Select "Install the hardware that I manually select from a list (Advanced)" and click Next.
7. Scroll down and select "Network adapters" and click Next.
8. Select under Manufacturer "Microsoft" and then under Network Adapter "Microsoft Loopback Adapter" and click Next.

(Thanks to gdavi on http://social.technet.microsoft.com/Forums/en-US/w7itpronetworking/thread/259c7ef2-3770-4212-8fca-c58936979851).

After passing the network test, the OUI refuse to install on Windows 7. Let´s go on...

II. Run the setup using old version of Windows (fake? no, simulation).
If OUI (Oracle Universal Installer), i.e. setup.exe, detects the version and refuse to install on windows 7, run the setup.exe using the feature for downgrade your version detected by OUI:
1. Start > Control Panel > Programs > Use an older program with this version of Windows;
2. Next. Wait for detection of issues...
3. If Oracle is not in the list (I bet it wont be...), choose "Not Listed". Next.
4. Browse to the folder where the Oracle setup.exe is located, click Open, and then... Next, of course.
5. Select the issue "The program worked in eralier versions of Windows but won´t install or run now". Next.
6 . Select your wished version. I used Vista. Next.
7 . A message will appear and then, after the next Next button, the program will start up the setup.exe.

In my case, no one problem was found after this configuration.

If some of the try abort when installing, I advice you to delete the remainig folder from previous (aborted) installation, avoiding unused folders after sucessfull installation. By default, my installer is creating c:\oracle\product\10.2.0\db_1 folder, but this is changeable in the first screen of OUI.

Hope to help. Good bye.