C.3.1.4 Removing the Oracle APEX Release Schema

After you revert to the prior release, remove the Oracle APEX schema.

• Removing the APEX Release 21.2 Schema from a Non-CDB
  Start SQL*Plus and connect to the database and execute DROP USER APEX_210200 CASCADE; command.
• Removing the Oracle APEX Release 21.2 Schema from a CDB
  Create text files, start SQL*Plus and connect to the database execute @remove_apx212_usr.sql.

C.3.1.4.1 Removing the APEX Release 21.2 Schema from a Non-CDB

Start SQL*Plus and connect to the database and execute DROP USER APEX_210200 CASCADE; command.

To remove the release 21.2 schema from a non-CDB:

1. Start SQL*Plus and connect to the database where APEX is installed as SYS specifying the SYSDBA role:

   • On Windows:

     SYSTEM_DRIVE:\ sqlplus /nolog
     SQL> SQL> CONNECT SYS as SYSDBA
     Enter password: SYS_password
     

   • On UNIX and Linux:

     $ sqlplus /nolog
     SQL> SQL> CONNECT SYS as SYSDBA
     Enter password: SYS_password
     

2. Execute the following command:

   DROP USER APEX_210200 CASCADE;
   

   Once you have removed the Oracle APEX 21.2 schema, you can now attempt the upgrade again.

C.3.1.4.2 Removing the Oracle APEX Release 21.2 Schema from a CDB

Create text files, start SQL*Plus and connect to the database execute @remove_apx212_usr.sql.

To remove the release 21.2 schema from a CDB:

1. Create a new text file named remove_apx212_usr1.sql with the following contents:

   alter session set current_schema = SYS;
   drop user APEX_210200 cascade;
   

2. Create a second new text file named remove_apx212_usr.sql with the following contents:

   set define '^'
   whenever sqlerror exit
   column :xe_home new_value OH_HOME NOPRINT
   variable xe_home varchar2(255)
    
   set serverout on
   begin
   -- get oracle_home
       sys.dbms_system.get_env('ORACLE_HOME',:xe_home);
       if length(:xe_home) = 0 then
           sys.dbms_output.put_line(lpad('-',80,'-'));
           raise_application_error (
               -20001,
               'Oracle Home environment variable not set' );
       end if;
   end;
   /
   whenever sqlerror continue
    
   set termout off
   select :xe_home from sys.dual;
   set termout on
   host ^OH_HOME/perl/bin/perl -I ^OH_HOME/rdbms/admin ^OH_HOME/rdbms/admin/catcon.pl -b
         remove_apx212_usr remove_apx212_usr.sql
   

3. Start SQL*Plus and connect to the database where APEX is installed as SYS specifying the SYSDBA role:

   • On Windows:

     SYSTEM_DRIVE:\ sqlplus /nolog
     SQL> SQL> CONNECT SYS as SYSDBA
     Enter password: SYS_password
     

   • On UNIX and Linux:

     $ sqlplus /nolog
     SQL> SQL> CONNECT SYS as SYSDBA
     Enter password: SYS_password
     

4. Execute the following command:

   @remove_apx212_usr.sql
   

   Once you have removed the APEX 21.2 schema, you can now attempt the upgrade again.