Complete steps for a complete Oracle uninstall

One 、 Stop using Oracle Service for
Discontinue use oracle service , Enter computer management , in service , find oracle All the services at the beginning , Right click to select stop .

 

Two 、 open Universal Installer Tool run uninstall Oracle Database program  
（1）、 General operation Oracle Built in uninstaller , If you use Universal Installer Tool unload .

　　　 Click on the start menu to find Oracle, And then click Oracle Install the product , Click again Universal Installer.

 

（2）、 Click and wait for a while, and then you will enter the following interface , Click uninstall product  

（3）、 Select the one you want to delete Oracle product , Then click delete  

 

（4） Go to the directory shown in the figure below , Found install File and run it to delete . 

 

（5）、 find deinstall.bat Double click after the file  

 

3、 ... and 、 Enter the uninstall batch program to run uninstall  
（1）、 appear -- Specifies all single instance listeners to be unconfigured [LISTENER]: Input LISTENER As shown in the figure ---- And then go back

 

 （2）、 Enter and enter the following interface

 

When the input [] What's inside , Use English commas as as separators when specifying multiple lists , There is only one in this case ORCLS So only input ORCLS And then go back

Don't do anything after entering the carriage --- Wait patiently , Until the content in the next step appears

If you type at this time , Will enter the buffer , As input for the following options

If there are friends whose next step is different from mine , Please uninstall again

（3）、 appear ------ Specify this database (1. Single instance database |2. Enable Oracle Restart The database of ) The type of [1]:　　　　 Directly enter

 

（4）、 appear ------ Specify the diagnostic target location of the database [D:\APP\ADMINISTRATOR\diag\rdbms\orcls]:　　　　 Directly enter

 

（5） If the information shown in the red box appears, the directory does not exist , Then specify the directory as D:\APP\ADMINISTRATOR\diag Can

among D:\APP\ADMINISTRATOR\ Install for you Oracle The catalog of

Students who really don't know directly copy the diagnosis target location of the specified database [D:\APP\ADMINISTRATOR\diag\rdbms\orcls]: Medium D:\APP\ADMINISTRATOR\diag Then you can return

 

（6）、 appear ------ Specify database ASM|FS The type of storage used [FS]:　　 Input FS enter  

 

（7） appear ------ If any database files exist on the shared file system , Please specify the list of directories . If you find it 'ORCLS' subdirectories , The subdirectory will be deleted .

　　  Otherwise, the specified directory will be deleted . Besides , You can specify that you can specify a list of database files with full paths and press enter directly

 

（8）、 If the quick recovery area is configured on the file system , Please specify its location . If you find it 'ORCLS' subdirectories , The subdirectory will be deleted .

　　　　 Directly enter

 

（9） appear ------ Specify database spfile Location

　　  Directly enter

 

（10） appear ------ Whether or not to continue Input y enter  

Here it is CMD The operation inside is completed , Just wait for CMD The page will disappear automatically  

 

  Four 、 Delete from the registry Oracle Related items
（1）、 In this case Oracle The installation directory is D:\app Here's the picture , Friends can enter the following path in the red box

 

（3）、Win+R Open the operation interface , Input regedit, Enter to enter the registry editor

　　　　 Delete HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ All under path Oracle Starting service name

 

（3） Delete HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Eventlog\Application All of the registry Oracle All of the beginning

 

（4） Delete HKEY_LOCAL_MACHINE\SOFTWARE\ORACLE The registry  

 

5、 ... and 、 Delete Oracle environment variable  
Right click on my computer --> attribute --> senior --> environment variable , Delete environment variables ORACLE_HOME、TNS_ADMIN And other environmental variables , Delete PATH Medium environmental variables Oracle Set the path information

Then check to see if there is any in the environment variable Oracle Related settings , If there is any direct deletion and Oracle Related settings

If there is no relevant setting in my environment variable, I will not take a screenshot

6、 ... and 、 Delete Oracle The installation directory 、 file
（1）、 Delete D:\app All the files in the directory

 

（2）、 Delete C Under the plate C:\Program Files perhaps C:\Program Files(x86) In the catalog Oracle The table of contents is as follows

 

Then restart the computer , thus ,Oracle Has been completely uninstalled , Now you can reload .

load and unload oracle Remember to restart your computer !!!!!!!!!!!!!!!!!!!, hold app The entire file should be deleted , It will be generated automatically during installation