C.4 Cleaning Up After a Failed Installation

Learn about troubleshooting after failed installation.

In a successful installation the following banner displays near the end of the installation:

Thank you for installing Oracle Application Express.
Oracle Application Express is installed in the APEX_180200 schema.

To reinstall, you must either drop the Oracle Application Express database schemas, or run a script to completely remove Application Express from the database, depending upon the installation type.

Parent topic: Oracle Application Express Installation Troubleshooting

C.4.1 Reverting to a Previous Release After a Failed Upgrade Installation

Learn about reverting to Oracle Application Express to a previous release in the case of a failed upgrade installation.

In the case of a failed upgrade installation, you may want to revert Oracle Application Express to a previous release and then remove the schemas associated with the current release.

Parent topic: Cleaning Up After a Failed Installation

C.4.1.1 Verifying If You Have a Previous Release of Oracle Application Express

To verify whether you have a previous release of Application Express:

  1. Start SQL*Plus and connect to the database where Oracle Application Express is installed as SYS specifying the SYSDBA role. For example:

    • On Windows:

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

    • On UNIX and Linux:

      $ sqlplus /nolog
SQL> CONNECT SYS as SYSDBA
Enter password: SYS_password
  2. Execute the following command in SQL*Plus: 
    select username from dba_users
    where regexp_like(username,'(FLOWS|APEX)_\d{6}')
        and username <> (select table_owner from all_synonyms
        where synonym_name = 'WWV_FLOW'
        and owner = 'PUBLIC')

    If the query above returns any rows, the database contains a previous release of Oracle Application Express.

Parent topic: Reverting to a Previous Release After a Failed Upgrade Installation

C.4.1.2 Reverting the Images Directory

If you altered your images directory, revert it back to the release you want to revert to using the following methods:

  • For Oracle REST Data Services or mod_plsql :

    If you altered your images directory, you must point the text alias /i/ back to images directory for the release you want to revert to.

  • For Embedded PL/SQL Gateway :

    Run apex_epg_config.sql from the release directory you want to revert to, to restore the images of that release. See the Oracle Application Installation Guide for the release you want to revert to and find the section "Updating the Images Directory When Upgrading from a Previous Release."

See Also:

"Copying the Images Directory"

Parent topic: Reverting to a Previous Release After a Failed Upgrade Installation

C.4.1.3 Reverting to a Previous Release

This section describes how to revert to a Oracle Application Express previous release.

Parent topic: Reverting to a Previous Release After a Failed Upgrade Installation

C.4.1.3.1 Reverting to Release 1.5

To revert to a previous Oracle Application Express release 1.5:

  1. If you altered your images directory, revert it back to the release you want to revert to.
  2. Start SQL*Plus and connect to the database where Oracle Application Express 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
  3. Execute the following: 
    ALTER SESSION SET CURRENT_SCHEMA = FLOWS_010500;
exec flows_010500.wwv_flow_upgrade.switch_schemas('APEX_180200','FLOWS_010500');
  4. See the next section, Removing the Oracle Application Express Release 18.2 Schema.

C.4.1.3.2 Reverting to Release 1.6

To revert to a Oracle Application Express release 1.6:

  1. If you altered your images directory, revert it back to the release you want to revert to.
  2. Start SQL*Plus and connect to the database where Oracle Application Express 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
  3. Execute the following: 
    ALTER SESSION SET CURRENT_SCHEMA = FLOWS_010600;
exec flows_010600.wwv_flow_upgrade.switch_schemas('APEX_180200','FLOWS_010600');
  4. Depending upon the release you are reverting to, execute the appropriate command in SQL*Plus.
  5. See the next section, Removing the Oracle Application Express Release 18.2 Schema.

C.4.1.3.3 Reverting to Release 2.0

To revert to a previous Oracle Application Express release 2.0:

  1. If you altered your images directory, revert it back to the release you want to revert to.
  2. Start SQL*Plus and connect to the database where Oracle Application Express 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
  3. Execute the following: 
    ALTER SESSION SET CURRENT_SCHEMA = FLOWS_020000;
exec flows_020000.wwv_flow_upgrade.switch_schemas('APEX_180200','FLOWS_020000');
  4. See the next section, Removing the Oracle Application Express Release 18.2 Schema.

C.4.1.3.4 Reverting to Release 2.2

To revert to a previous Oracle Application Express release 2.2:

  1. If you altered your images directory, revert it back to the release you want to revert to.
  2. Start SQL*Plus and connect to the database where Oracle Application Express 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
  3. Execute the following: 
    ALTER SESSION SET CURRENT_SCHEMA = FLOWS_020200;
exec flows_020200.wwv_flow_upgrade.switch_schemas('APEX_180200','FLOWS_020200');
  4. See the next section, Removing the Oracle Application Express Release 18.2 Schema.

C.4.1.3.5 Reverting to Release 3.0

To revert to a previous Oracle Application Express release 3.0:

  1. If you altered your images directory, revert it back to the release you want to revert to.
  2. Change your working directory to apex in the 3.0 source.
  3. Start SQL*Plus and connect to the database where Oracle Application Express 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: 
    set define '^'

@apexvalidate x x FLOWS_030000
ALTER SESSION SET CURRENT_SCHEMA = FLOWS_030000;
exec flows_030000.wwv_flow_upgrade.switch_schemas('APEX_180200','FLOWS_030000');
ALTER SESSION SET CURRENT_SCHEMA = SYS;
declare
    l_apex_version varchar2(30);
begin
    l_apex_version := flows_030000.wwv_flows_release;
    dbms_registry.downgrading('APEX','Oracle Application Express','validate_apex','FLOWS_030000');
    dbms_registry.downgraded('APEX',l_apex_version);
    validate_apex;
end;
/
  5. See the next section, Removing the Oracle Application Express Release 18.2 Schema.

C.4.1.3.6 Reverting to Release 3.1

To revert to a previous Oracle Application Express release 3.1:

  1. If you altered your images directory, revert it back to the release you want to revert to.
  2. Change your working directory to apex/core in the 3.1 source.
  3. Start SQL*Plus and connect to the database where Oracle Application Express 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 commands: 
    @wwv_flow_val.plb
@wwv_dbms_sql.sql
@wwv_dbms_sql.plb
  5. Change your working directory to apex in the 3.1 source.
  6. Start SQL*Plus and connect to the database where Oracle Application Express 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
  7. Execute the following: 
    set define '^'
 
@apexvalidate x x FLOWS_030100
ALTER SESSION SET CURRENT_SCHEMA = FLOWS_030100;
exec flows_030100.wwv_flow_upgrade.switch_schemas('APEX_180200','FLOWS_030100');
ALTER SESSION SET CURRENT_SCHEMA = SYS;
declare
    l_apex_version varchar2(30);
begin
    l_apex_version := flows_030100.wwv_flows_release;
    dbms_registry.downgrading('APEX','Oracle Application Express','validate_apex','FLOWS_030100');
    dbms_registry.downgraded('APEX',l_apex_version);
    validate_apex;
end;
/
  8. See the next section, Removing the Oracle Application Express Release 18.2 Schema.

C.4.1.3.7 Reverting to Release 3.2

To revert to a previous Oracle Application Express release 3.2:

  1. If you altered your images directory, revert it back to the release you want to revert to.
  2. Change your working directory to apex/core in the 3.2 source.
  3. Start SQL*Plus and connect to the database where Oracle Application Express 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 commands: 
    @wwv_flow_val.plb
@wwv_dbms_sql.sql
@wwv_dbms_sql.plb
  5. Start SQL*Plus and connect to the database where Oracle Application Express 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
  6. Execute the following: 
    set define '^'
 
@apexvalidate x x APEX_030200
ALTER SESSION SET CURRENT_SCHEMA = APEX_030200;
exec apex_030200.wwv_flow_upgrade.switch_schemas('APEX_180200','APEX_030200');
ALTER SESSION SET CURRENT_SCHEMA = SYS;
declare
    l_apex_version varchar2(30);
begin
    l_apex_version := apex_030200.wwv_flows_release;
    dbms_registry.downgrading('APEX','Oracle Application Express','validate_apex','APEX_030200')
    dbms_registry.downgraded('APEX',l_apex_version);
    validate_apex;
end;
/
  7. See the next section, Removing the Oracle Application Express Release 18.2 Schema.

C.4.1.3.8 Reverting to Release 4.0

To revert to a previous Oracle Application Express release 4.0:

  1. If you altered your images directory, revert it back to the release you want to revert to.
  2. Start SQL*Plus and connect to the database where Oracle Application Express 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
  3. Execute the following commands: 
    @wwv_flow_val.sql
@wwv_flow_val.plb
@wwv_dbms_sql.sql
@wwv_dbms_sql.plb
  4. Change your working directory to apex in the 4.0 source.
  5. Start SQL*Plus and connect to the database where Oracle Application Express 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
  6. Execute the following: 
    set define '^'

@apexvalidate x x APEX_040000
ALTER SESSION SET CURRENT_SCHEMA = APEX_040000;
exec apex_040000.wwv_flow_upgrade.switch_schemas('APEX_180200','APEX_040000');
ALTER SESSION SET CURRENT_SCHEMA = SYS;
declare
    l_apex_version varchar2(30);
begin
    l_apex_version := apex_040000.wwv_flows_release;
    dbms_registry.downgrading('APEX','Oracle Application Express','validate_apex','APEX_040000');
    dbms_registry.downgraded('APEX',l_apex_version);
    validate_apex;
end;
/
  7. See the next section, Removing the Oracle Application Express Release 18.2 Schema.

C.4.1.3.9 Reverting to Release 4.1

To revert to a previous Oracle Application Express release 4.1:

  1. If you altered your images directory, revert it back to the release you want to revert to.
  2. Change your working directory to apex/core in the 4.1 source.
  3. Start SQL*Plus and connect to the database where Oracle Application Express 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 commands: 
    @wwv_flow_val.sql
@wwv_flow_val.plb
@wwv_dbms_sql.sql
@wwv_dbms_sql.plb
  5. Change your working directory to apex in the 4.1 source.
  6. Start SQL*Plus and connect to the database where Oracle Application Express 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
  7. Execute the following: 
    set define '^'
 
@apexvalidate x x APEX_040100
ALTER SESSION SET CURRENT_SCHEMA = APEX_040100;
exec apex_040100.wwv_flow_upgrade.switch_schemas('APEX_180200','APEX_040100');
ALTER SESSION SET CURRENT_SCHEMA = SYS;
declare
    l_apex_version varchar2(30);
begin
    l_apex_version := apex_040100.wwv_flows_release;
    dbms_registry.downgrading('APEX','Oracle Application Express','validate_apex','APEX_040100');
    dbms_registry.downgraded('APEX',l_apex_version);
    validate_apex;
end;
/
  8. See the next section, Removing the Oracle Application Express Release 18.2 Schema.

C.4.1.3.10 Reverting to Release 4.2 in a non-CDB

To revert to a previous Oracle Application Express release 4.2 in a non-CDB:

  1. If you altered your images directory, revert it back to the release you want to revert to.
  2. Change your working directory to apex/core in the 4.2 source.
  3. Start SQL*Plus and connect to the database where Oracle Application Express 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 commands: 
    alter session set current_schema = SYS;
 
@core_sys_views.sql
 
grant select on sys.wwv_flow_gv$session to APEX_040200;
 
@wwv_flow_val.sql
@wwv_flow_val.plb
@wwv_dbms_sql.sql
grant execute on wwv_dbms_sql to APEX_040200;
@wwv_dbms_sql.plb
 
begin
    dbms_utility.compile_schema('APEX_040200');
end;
/
  5. Change your working directory to apex in the 4.2 source.
  6. Start SQL*Plus and connect to the database where Oracle Application Express 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
  7. Execute the following: 
    set define '^'
 
@apexvalidate x x APEX_040200
ALTER SESSION SET CURRENT_SCHEMA = APEX_040200;
exec apex_040200.wwv_flow_upgrade.switch_schemas('APEX_180200','APEX_040200');
ALTER SESSION SET CURRENT_SCHEMA = SYS;
declare
    l_apex_version varchar2(30);
begin
    l_apex_version := apex_040200.wwv_flows_release;
    dbms_registry.downgrading('APEX','Oracle Application Express','validate_apex','APEX_040200');
    dbms_registry.downgraded('APEX',l_apex_version);
    validate_apex;
end;
/
  8. See the next section, Removing the Oracle Application Express Release 18.2 Schema.

C.4.1.3.11 Reverting to Release 4.2 in a CDB

To revert to a previous Oracle Application Express release 4.2 in a CDB:

  1. If you altered your images directory, revert it back to the release you want to revert to.
  2. Change your working directory to apex/core in the 4.2 source.
  3. Create a new text file in that directory named apx42dgrd1.sql consisting of the following: 
    alter session set current_schema = SYS;
 
@core_sys_views.sql
 
grant select on sys.wwv_flow_gv$session to APEX_040200;
 
@wwv_flow_val.sql
@wwv_flow_val.plb
@wwv_dbms_sql.sql
grant execute on wwv_dbms_sql to APEX_040200;
@wwv_dbms_sql.plb
 
begin
    dbms_utility.compile_schema('APEX_040200');
end;
/
  4. Create a second new text file in that directory named apx42dgrd.sql consisting of the following: 
    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 apx42dgrd apx42dgrd1.sql
  5. Start SQL*Plus and connect to CDB$ROOT of the database where Oracle Application Express 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
  6. Execute the following commands: 
    @apx42dgrd.sql
  7. Change your working directory to apex in the 4.2 source.
  8. Create a new text file in that directory name apx42dgrd1.sql with the following contents: 
    set define '^'
 
ALTER SESSION SET CURRENT_SCHEMA = SYS;
 
@apexvalidate x x APEX_040200
 
ALTER SESSION SET CURRENT_SCHEMA = APEX_040200;
exec apex_040200.wwv_flow_upgrade.switch_schemas('APEX_180200','APEX_040200');
ALTER SESSION SET CURRENT_SCHEMA = SYS;
declare
    l_apex_version varchar2(30);
begin
    l_apex_version := apex_040200.wwv_flows_release;
    dbms_registry.downgrading('APEX','Oracle Application Express','validate_apex','APEX_040200');
    dbms_registry.downgraded('APEX',l_apex_version);
    validate_apex;
end;
/
  9. Create a second new text file in that directory named apx42dgrd.sql consisting of the following: 
    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 apx42dgrd apx42dgrd1.sql
  10. Start SQL*Plus and connect to CDB$ROOT of the database where Oracle Application Express 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
  11. Execute the following: 
    @apx42dgrd.sql
  12. See the next section, Removing the Oracle Application Express Release 18.2 Schema.

C.4.1.3.12 Reverting to Release 5.0 in a non-CDB

To revert to a previous Oracle Application Express release 5.0 in a non-CDB:

  1. If you altered your images directory, revert it back to the release you want to revert to.
  2. Change your working directory to apex/core in the 5.0 source.
  3. Start SQL*Plus and connect to the database where Oracle Application Express is installed as SYS specifying the SYSDBA role:

    On Windows:

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

    On UNIX and Linux:

    $ sqlplus /nolog
SQL> CONNECT SYS as SYSDBA
Enter password: SYS_password
  4. Execute the following commands: 
    alter session set current_schema = SYS;   

@wwv_flow_val.sql 
@wwv_flow_val.plb 

begin
     dbms_utility.compile_schema('APEX_050000');
end;
/ 

set define '^'   
@validate_apex x x APEX_050000

begin
  for i in ( select owner, trigger_name
               from sys.dba_triggers
              where owner        =    'APEX_050000'
                and trigger_name like 'WWV_FLOW_UPGRADE_%'
              order by 1 )
  loop
    sys.dbms_output.put_line('Dropping trigger '||i.owner||'.'||i.trigger_name);
    execute immediate 'drop trigger '||i.owner||'.'||i.trigger_name;
  end loop;
end;
/

ALTER SESSION SET CURRENT_SCHEMA = APEX_050000; 
exec apex_050000.wwv_flow_upgrade.switch_schemas('APEX_180200','APEX_050000');
ALTER SESSION SET CURRENT_SCHEMA = SYS; 
drop context APEX$SESSION;
create context APEX$SESSION using APEX_050000.WWV_FLOW_SESSION_CONTEXT;
declare
     l_apex_version varchar2(30); 
     l_schemas sys.dbms_registry.schema_list_t;
begin
     l_apex_version := apex_050000.wwv_flows_release;
     dbms_registry.downgrading('APEX','Oracle Application Express','validate_apex','APEX_050000');
     dbms_registry.downgraded('APEX',l_apex_version);
     select username
       bulk collect into l_schemas
       from all_users
      where username in ('FLOWS_FILES','APEX_PUBLIC_USER','APEX_LISTENER','APEX_REST_PUBLIC_USER','APEX_INSTANCE_ADMIN_USER')
      order by 1;
     sys.dbms_registry.update_schema_list('APEX', l_schemas);
     validate_apex;
end;
/
  5. See the next section, Removing the Oracle Application Express Release 18.2 Schema.

C.4.1.3.13 Reverting to Release 5.0 in a CDB

To revert to a previous Oracle Application Express release 5.0 in a CDB:

  1. If you altered your images directory, revert it back to the release you want to revert to.
  2. Change your working directory to apex/core in the 5.0 source.
  3. Create a new text file in that directory named apx50dgrd1.sql consisting of the following: 
    alter session set current_schema = SYS;   

@wwv_flow_val.sql 
@wwv_flow_val.plb 

begin
     dbms_utility.compile_schema('APEX_050000');
end;
/ 

set define '^'   
@validate_apex x x APEX_050000

begin
  for i in ( select owner, trigger_name
               from sys.dba_triggers
              where owner        =    'APEX_050000'
                and trigger_name like 'WWV_FLOW_UPGRADE_%'
              order by 1 )
  loop
    sys.dbms_output.put_line('Dropping trigger '||i.owner||'.'||i.trigger_name);
    execute immediate 'drop trigger '||i.owner||'.'||i.trigger_name;
  end loop;
end;
/

ALTER SESSION SET CURRENT_SCHEMA = APEX_050000; 
exec apex_050000.wwv_flow_upgrade.switch_schemas('APEX_180200','APEX_050000');
ALTER SESSION SET CURRENT_SCHEMA = SYS; 
drop context APEX$SESSION;
create context APEX$SESSION using APEX_050000.WWV_FLOW_SESSION_CONTEXT;
declare
     l_apex_version varchar2(30); 
     l_schemas sys.dbms_registry.schema_list_t;
begin
     l_apex_version := apex_050000.wwv_flows_release;
     dbms_registry.downgrading('APEX','Oracle Application Express','validate_apex','APEX_050000');
     dbms_registry.downgraded('APEX',l_apex_version);
     select username
       bulk collect into l_schemas
       from all_users
      where username in ('FLOWS_FILES','APEX_PUBLIC_USER','APEX_LISTENER','APEX_REST_PUBLIC_USER','APEX_INSTANCE_ADMIN_USER')
      order by 1;
     sys.dbms_registry.update_schema_list('APEX', l_schemas);
     validate_apex;
end;
/
  4. Create a second new text file in that directory named apx50dgrd.sql consisting of the following: 
    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 apx50dgrd apx50dgrd1.sql
  5. Start SQL*Plus and connect to CDB$ROOT of the database where Oracle Application Express is installed as SYS specifying the SYSDBA role:

    On Windows:

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

    On UNIX and Linux:

    $ sqlplus /nolog 
SQL> CONNECT SYS as SYSDBA 
Enter password: SYS_password
  6. Execute the following commands: 
    @apx50dgrd.sql
  7. See the next section, Removing the Oracle Application Express Release 18.2 Schema.

C.4.1.3.14 Reverting to Release 5.1 in a non-CDB

To revert to a previous Oracle Application Express release 5.1 in a non-CDB:

  1. If you altered your images directory, revert it back to the release you want to revert to.
  2. Change your working directory to apex/core in the 5.1 source.
  3. Start SQL*Plus and connect to the database where Oracle Application Express is installed as SYS specifying the SYSDBA role:

    On Windows:

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

    On UNIX and Linux:

    $ sqlplus /nolog
SQL> CONNECT SYS as SYSDBA
Enter password: SYS_password
  4. Execute the following commands: 
    alter session set current_schema = SYS;   

@wwv_flow_val.sql 
@wwv_flow_val.plb 

begin
     dbms_utility.compile_schema('APEX_050100');
end;
/ 

set define '^'   
@validate_apex x x APEX_050100

begin
  for i in ( select owner, trigger_name
               from sys.dba_triggers
              where owner        =    'APEX_050100'
                and trigger_name like 'WWV_FLOW_UPGRADE_%'
              order by 1 )
  loop
    sys.dbms_output.put_line('Dropping trigger '||i.owner||'.'||i.trigger_name);
    execute immediate 'drop trigger '||i.owner||'.'||i.trigger_name;
  end loop;
end;
/

ALTER SESSION SET CURRENT_SCHEMA = APEX_050100; 
exec apex_050100.wwv_flow_upgrade.switch_schemas('APEX_180200','APEX_050100');
ALTER SESSION SET CURRENT_SCHEMA = SYS; 
drop context APEX$SESSION;
create context APEX$SESSION using APEX_050100.WWV_FLOW_SESSION_CONTEXT;
declare
     l_apex_version varchar2(30); 
     l_schemas sys.dbms_registry.schema_list_t;
begin
     l_apex_version := apex_050100.wwv_flows_release;
     dbms_registry.downgrading('APEX','Oracle Application Express','validate_apex','APEX_050100');
     dbms_registry.downgraded('APEX',l_apex_version);
     select username
       bulk collect into l_schemas
       from all_users
      where username in ('FLOWS_FILES','APEX_PUBLIC_USER','APEX_LISTENER','APEX_REST_PUBLIC_USER','APEX_INSTANCE_ADMIN_USER')
      order by 1;
     sys.dbms_registry.update_schema_list('APEX', l_schemas);
     validate_apex;
end;
/
  5. See the next section, Removing the Oracle Application Express Release 18.2 Schema.

C.4.1.3.15 Reverting to Release 5.1 in a CDB

To revert to a previous Oracle Application Express release 5.1 in a CDB:

  1. If you altered your images directory, revert it back to the release you want to revert to.
  2. Change your working directory to apex/core in the 5.1 source.
  3. Create a new text file in that directory named apx51dgrd1.sql consisting of the following: 
    alter session set current_schema = SYS;   

@wwv_flow_val.sql 
@wwv_flow_val.plb 

begin
     dbms_utility.compile_schema('APEX_050100');
end;
/ 

set define '^'   
@validate_apex x x APEX_050100

begin
  for i in ( select owner, trigger_name
               from sys.dba_triggers
              where owner        =    'APEX_050100'
                and trigger_name like 'WWV_FLOW_UPGRADE_%'
              order by 1 )
  loop
    sys.dbms_output.put_line('Dropping trigger '||i.owner||'.'||i.trigger_name);
    execute immediate 'drop trigger '||i.owner||'.'||i.trigger_name;
  end loop;
end;
/

ALTER SESSION SET CURRENT_SCHEMA = APEX_050100; 
exec apex_050100.wwv_flow_upgrade.switch_schemas('APEX_180200','APEX_050100');
ALTER SESSION SET CURRENT_SCHEMA = SYS; 
drop context APEX$SESSION;
create context APEX$SESSION using APEX_050100.WWV_FLOW_SESSION_CONTEXT;
declare
     l_apex_version varchar2(30); 
     l_schemas sys.dbms_registry.schema_list_t;
begin
     l_apex_version := apex_050100.wwv_flows_release;
     dbms_registry.downgrading('APEX','Oracle Application Express','validate_apex','APEX_050100');
     dbms_registry.downgraded('APEX',l_apex_version);
     select username
       bulk collect into l_schemas
       from all_users
      where username in ('FLOWS_FILES','APEX_PUBLIC_USER','APEX_LISTENER','APEX_REST_PUBLIC_USER','APEX_INSTANCE_ADMIN_USER')
      order by 1;
     sys.dbms_registry.update_schema_list('APEX', l_schemas);
     validate_apex;
end;
/
  4. Create a second new text file in that directory named apx51dgrd.sql consisting of the following: 
    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 apx51dgrd apx51dgrd1.sql
  5. Start SQL*Plus and connect to CDB$ROOT of the database where Oracle Application Express is installed as SYS specifying the SYSDBA role:

    On Windows:

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

    On UNIX and Linux:

    $ sqlplus /nolog 
SQL> CONNECT SYS as SYSDBA 
Enter password: SYS_password
  6. Execute the following commands: 
    @apx51dgrd.sql
  7. See the next section, Removing the Oracle Application Express Release 18.2 Schema.

C.4.1.4 Removing the Oracle Application Express Release 18.2 Schema

After you have reverted to the prior release you can remove the Oracle Application Express 18.2 schema.

Parent topic: Reverting to a Previous Release After a Failed Upgrade Installation

C.4.1.4.1 Removing the Oracle Application Express Release 18.2 Schema from a Non-CDB

Start SQL*Plus and connect to the database and execute DROP USER APEX_180200 CASCADE; .

To remove the release 18.2 schema from a non-CDB:

  1. Start SQL*Plus and connect to the database where Oracle Application Express 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_180200 CASCADE;

    Once you have removed the Oracle Application Express 18.2 schema, you can now attempt the upgrade again.

C.4.1.4.2 Removing the Oracle Application Express Release 18.2 Schema from a CDB

Create text files, start SQL*Plus and connect to the database execute @remove_apx182_usr.sql.

To remove the release 18.2 schema from a CDB:

  1. Create a new text file named remove_apx182_usr1.sql with the following contents: 
    alter session set current_schema = SYS;
drop user APEX_180200 cascade;
  2. Create a second new text file named remove_apx182_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_apx51_usr remove_apx51_usr1.sql
  3. Start SQL*Plus and connect to the database where Oracle Application Express 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_apx182_usr.sql

    Once you have removed the Oracle Application Express 18.2 schema, you can now attempt the upgrade again.

C.4.2 Removing Oracle Application Express from the Database

Start SQL*Plus and connect to the database where Oracle Application Express is installed as SYS specifying the SYSDBA role and execute the SQL> @apxremov.sql command.

This section describes how to remove the Oracle Application Express schema, synonyms, and users from the database without deleting the database.

Note:

Do not follow these steps if you have upgraded your database from a prior release, and still want to use the prior release of Oracle Application Express. For information about reverting to a prior release, see Reverting to a Previous Release. If you are not sure whether you have completed a new installation or an upgrade installation, follow the steps in Cleaning Up After a Failed Installation to verify if a previous release of Application Express exists in the database.

To remove Oracle Application Express from the database:

  1. Change your working directory to the apex directory where you unzipped the Oracle Application Express software.
  2. Start SQL*Plus and connect to the database where Oracle Application Express 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
  3. Execute the following command: 
    SQL> @apxremov.sql
  4. After successfully removing Application Express using apxremov.sql, you must exit your current SQL*Plus session and reconnect before attempting another install using apexins.sql.

See Also:

Parent topic: Cleaning Up After a Failed Installation