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You can use SQL*Plus, as in UNIX, to start and stop an Oracle instance. The sequence of steps is as follows: 1. Go to the command prompt and invoke the SQL*Plus utility: C:\> sqlplus / nolog 2. Connect to the database as a user with the SYSDBA privilege: SQL> CONNECT sys/sys_passwd AS sysdba Connected. 3. Start up or shut down the database by using the appropriate commands.

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You can use the Windows ORADIM utility to create, delete, and modify databases, as well as to start and stop them. You can also perform the same activities using the Database Configuration Assistant, which is a whole lot easier to work with. However, if you ever have to manually manage the Oracle instance, you must use the ORADIM utility. The ORADIM utility is very easy to use, but unfortunately it doesn t provide adequate feedback on its activities. The utility does provide a log of its activity, and the log is located in the $ORACLE_HOME\database directory under the name ORADIM.

The ORADIM utility doesn t let you know whether a specific command failed or succeeded. It returns the prompt in either case, and you can t rely on the absence of an error message as an indication that everything is working fine. Make sure you read the ORADIM log file after each invocation of the utility.

When the Oracle Service starts, it will start the database automatically by default. You can use the ORADIM utility to configure the Oracle Service to start with or without the Oracle instance, but if your registry settings point to an automatic start of the Oracle instance, the instance will come up when you start the Oracle Service.

The output depends on the contents of your /etc/hosts file, but the intended effect is to display the domain name corresponding to the specified node name. Try setting the node variable to the name of your system before running this command. My system is named casper and this is its hosts file entry:

Blue = 2, Yellow = 4, Orange = Red | Yellow, Green = Blue | Yellow, White = Red | Blue | Yellow }; int main() { Console::WriteLine(Color::Red | Color::Blue); // "Red, Blue" Console::WriteLine(Color::Red | Color::Yellow); // "Orange" String^ colorText = "\tBlue,\nYellow"; Color c = (Color)Enum::Parse(Color::typeid, colorText); Console::WriteLine(c); // "Green" } Enum::ToString uses literals for combined values if possible. In this sample, (Color::Red | Color::Yellow).ToString() evaluates to "Orange". Enum::Parse can be used to parse an enum value out of a string. As the preceding sample code shows, even input strings with whitespace are accepted. Enum::Parse returns an Object^. Since a managed enum is a value type, the parsed enum value is boxed and a tracking handle to the boxed value is returned by Enum::Parse. When the caller casts the boxed object back into a managed enum type, unboxing occurs. As discussed in 2, a boxed object must be unboxed to the correct type. Even though a managed enum can be explicitly casted to int, the cast of a boxed enum object to int would cause a System::InvalidCastException at runtime.

Don t confuse the Oracle Service with the Oracle instance. The Oracle Service is merely the Windows process that denotes that the Oracle server executable, oracle.exe, has been invoked. Starting the Oracle instance, on the other hand, includes starting well-known processes such as the database writer and the log writer.

The following sections present some examples of how to use the ORADIM utility to manage the Oracle Service and the database instance. Assume that the instance name is FINANCE.

You can start a service by itself, or you can start a service along with a database instance. To start the service by itself, use ORADIM as follows: C:> ORADIM -startup -sid FINANCE Depending on your registry settings, this command will also bring up your database instance. If you want to ensure that the instance also comes up, use the following command: C:> ORADIM -startup -sid FINANCE -starttype srvc, inst If your initialization parameter file is not in its default location ($ORACLE_HOME\database), you need to add a pfile parameter to the previous command to specify the location of the initialization parameter file.