Implemented DMZ for the project, its not very difficult to implement but bit complex to troubleshoot.Most complex on troubleshooting firewall issue.

My architecture goes like this…

LB -> Load balancer
RP -> Reverse Proxy server

LB –>RP–>EBS(ISUPPLIER NODE) (APPS TIER) –> EBS (db tier)

Load balancer — Not much involvement, F5 load balancer … asked sysadmin to point to reverse proxy URL on port 8080.

Reverse proxy server — Installed standalone OHS (oracle HTTP server), I had trouble while redirection because I chosen a wrong software OAs (Oracle Application server)

Test from RP –> EBS .. telnet <EBS host> port number

EBS —- Mostly context file changes

Create Context File
- create /{inst_name}/inst/apps/$INST_NAME_$dmz_hostname/appl/admin folder for new MT server
- copy context file from Private MT server into the above location with new name.
- Modify the context file as under:
- change all the references to Private MT server to Public MT server, except the following:

s_cphost
s_javamailer_imaphost
s_wfhost
s_smtphost
s_mwahost

- change following parameters for the Public URL
# webentryhost: company (public URL)
# webentrydomain: domain.com (public URL)
# login_page: https://company.domain.com/oa_servlet/AppsLogin
#s_external_url:https://company.domain.com
# s_active_webport : 443

login to the private mt server as ap{inst_name}.

Run the following command (replace the apps-schema-name/apps-passwd with actual values)

sqlplus <apps-schema-name>/<apps-passwd> @<FND_TOP>/patch/115/sql/txkChangeProfH.sql SERVRESP

Change the Node Trust Level Profile Option
- add node to fnd_nodes using the Sysadmin –> Install –> nodes
- update “Node Trust Level” profile option for that node as “External”
- Assign Self Service Responsibilities to sysadmin

Set “Responsibility Trust Level”

9) Update Agent profiles as DMZ server level to point to DMZ URL .

Login as system Admin Resp – Profiles – Select DMZ server name and search for required profiles .

- Application Framework Agent
- Applications Web Agent
- Applications JSP Agent
- Apps Servlet Agent

Update URL for DMZ host to point to DMZ URL.
Do not update URL at site level !

Run adconfig as under:
adconfig.sh contextfile=/{inst_name}/inst/apps/$INST_NAME_$dmz_hostname/appl/admin/$INST_NAME_$dmz_hostname.xml appspass=apps run=INSTE8_SETUP

Verify DMZ Setup.
- start all services on dmz server (keep the private mt down)
- loging to the DMZ url
- browse through the links to see if the basic navigation works fine.

01422, 00000, "exact fetch returns more than requested number of rows"
// *Cause: The number specified in exact fetch is less than the rows returned.
// *Action: Rewrite the query or change number of rows requested

I googled but I didnt find anything useful , most of  the advise to use "rownum=1" or "Raise exception error – too many rows" but I want all the rows , I tried with cursor but its not effective.

Finally , I got a link to store more than one row that is BULK COLLECT . BULK COLLECT is very fast to store the result in output.

Syntax to use bulk collect

type inst_t is table of varchar(200); — A Table Type
<variable>   inst_t;

 SELECT INSTANCE_ID bulk collect into <variable > FROM <Table name>

 a LONG into a CLOB 

 a LONG RAW into a BLOB

Pasting reply from the forum post

Once choice could be to export/import the table.
Now would be the time to consider converting it to BLOB:

SQL> create table t(col long raw) ;

Table created.

SQL> insert into t values (utl_raw.cast_to_raw('long')) ;

1 row created.

SQL> create table t2 as select to_lob(col) col from t ;

Table created.

SQL> desc t2
 Name                                                  Null?    Type
 ----------------------------------------------------- -------- ----
 COL                                                            BLOB

SQL> insert into t2 select to_lob(col) from t ;

1 row created.

SQL>

How to Remove an Oracle E-Business Suite Release 12 Windows Environment (Metalink Note 567507.1)

More information available on Steven Chan blog – http://blogs.oracle.com/stevenChan/2008/07/new_whitepaper_cleaning_up_app.html “New Whitepaper: Cleaning Up Apps 12 on Windows“

shutdown immediate;
startup mount;
alter database archivelog;
alter system set DB_FLASHBACK_RETENTION_TARGET=600;
alter system set DB_RECOVERY_FILE_DEST_SIZE=2G;
alter system set DB_RECOVERY_FILE_DEST=’/recovery/flashback’;
alter database flashback on;
alter database open;

Use it at your own risk

serviceDel.pl

print “Deleting Windows Services perl….\n”;
my $cmd =”sc query \”<SERVICE NAME>\” | grep RUNNING | cut -c33-”;
my $ret =`$cmd`;
chomp($ret);
$ret =~ s/^\s+//;
$ret =~ s/\s+$//;

if(“$ret” eq “RUNNING”){
my $cmd = “sc stop \”<SERVICE NAME>\”";
my $rt=system($cmd);
print “Stop service returned $rt…\n”;
}

while(true){
sleep(5);
my $cmd =”sc query \”<SERVICE NAME>\” | grep STOPPED | cut -c33-”;
my $c = `$cmd`;
chomp($c);
$c =~ s/^\s+//;
$c =~ s/\s+$//;
if ( “$c” eq “STOPPED”){print “SERVICE STOPPED \n”;last;}
print “SERVICE iS RUNNING \n”;
}

my $cmd = “sc delete \”<SERVICE NAME>\”";
my $rt  =  system($cmd);
print “Delete Service returned $rt…\n”;

ARCHIVE LOG START has been deprecated – see ALTER DATABASE ARCHIVELOG