git config core.filemode false

git update-index --assume-unchanged [filename(s)]

mysqldump mysqldump_options | gzip > outputfile.sql.gz

Gunzip and import using gzip

gunzip < outputfile.sql.gz | mysql mysqldump_options 

    * –routines – FALSE by default
    * –triggers – TRUE by default

To include in an existing backup script also triggers and stored procedures, add the –routines command line parameter:

mysqldump  --routines > dumpfile.sql 

To dump only the stored procedures and triggers and not the mysql tables and data:

mysqldump --routines --no-create-info --no-data --no-create-db --skip-opt  > dumpfile.sql

To import them to another database server run:

mysql  < dumpfile.sql

Or with character encoding settings

mysql --default_character_set utf8 database  < dumpfile.sql

sudo apt-get install postgresql

2. Install pdadmin GUI

apt-get install pgadmin3

3. Reset the password for the ‘postgres’ admin account for the server:

$ sudo su postgres -c psql template1 template1=# ALTER USER postgres WITH PASSWORD 'password'; template1=# \q

4. Change the password for the unix user ‘postgres’:

$ sudo passwd -d postgres $ sudo su postgres -c passwd

5. install adminpack

$ sudo apt-get install postgresql-contrib
$ sudo su postgres -c psql < /usr/share/postgresql/8.4/contrib/adminpack.sql 

PDF reports in some cases do not open, instead in Acrobat (Reader) you are presented with an error message that Acrobat could not open the file because it is either damaged or not a supported file type.

If file size of the XML data sent from APEX to the print server is not an issue, another reason might be that you have an invalid character in your XML file.

Turn on debug in APEX to see the error message sent back from Cocoon.

After hitting the print button in your APEX application again, APEX will open an html page in a new browser window showing Tomcat / Cocoon’s error report:

To find out what character in your XML data is invalid, in APEX in the application builder go to your report query and set OUTPUT FORMAT to “XML” instead of “PDF”.

Go back to your application page, turn off the debug mode and generate another report. This time APEX will offer an XML document for download. This document contains the XML data that would usually be sent to the print server along with the XSL stylesheet.

You can now open this XML document in your XML editor to check for invalid characters. As a first starting point it can also help to simply open up the XML document in Firefox which presents you with a nice error message that an illegal character was found and where it was found.

In my case there was an illegal character in the database record which needed to removed.

Carl Backstrom describes the setup process on his blog:
http://carlback.blogspot.com/2007/03/apex-cocoon-pdf-and-more.html

For Ubuntu this post on the Ubuntu forums is helpful:
http://ubuntuforums.org/showthread.php?t=1004742

Printing large reports

Printing large reports requires some extra settings

Tomcat has by default a limit on POST size. That prevent you from downloading large PDF files.
On Ubuntu: open /etc/tomcat5.5/server.xml
sudo nano /etc/tomcat5.5/server.xml
Find line maxSpareThreads=”75″ and add after that add the following to a new line
maxPostSize="0"

Also you need to increase JAVA memory

On Ubuntu /etc/default/tomcat5.5
sudo nano /etc/default/tomcat5.5
Add the following line to the file:
JAVA_OPTS="-Xms1024m -Xmx2049m"
The parameter -Xmx2049 allocates max. 2GB. You can allocate only about half of your physical memory.

Under Windows you can set the parameter when you start up Tomcat from the command line or create yourself a small .bat file that does the job for you, for example:
set JAVA_HOME=c:\Program Files\Java\jdk1.6.0_18
SET JAVA_OPTS=-Xmx2049m
cd c:\APEX_FOP\apache-tomcat-6.0.26\bin
startup.bat

Report queries in Oracle APEX

Another thing to consider is the report query in your APEX application. When creating report queries with named columns (under shared components) using SQL statements like “SELECT * FROM …” should be avoided. Instead include only the table columns that are actually being used in the report – “SELECT column1, column2 FROM …”. Doing so significantly reduces the file size of the XML/FO data sent from APEX to the report server.

Invalid characters in your XML data

See my other blog post about invalid characters in XML data:

General information about Oracle APEX and PDF printing:
http://www.oracle.com/technology/products/database/application_express/html/configure_printing.html

Links:
- Performance
- Cocoon Wiki Contents

exp userid=system/oracle owner=andre file=c:\temp\andre.dmp

Before the import it is required to set up the new schema user and assign necessary roles and privileges.

sqlplus system/oracle
CREATE USER andre_new IDENTIFIED BY password;
GRANT connect, resource TO andre_new;
EXIT;

Now you can import the data by remapping the previous user andre to the new user andre_new:

imp userid=system/oracle fromuser=andre touser=andre_new file=c:\temp\andre.dmp

Guest Additions installed?
First make sure the Guest Additions are installed. If not, from the VirtualBox’s menu go to Devices > Install Guest Additions. A virtual CD will be mounted. As root run the program VBoxLinuxAdditions.run. When the program completes reboot your VirtualBox.

Define a shared folder
With Guest Additions installed you go ahead and define the shared folder(s). From the VirtualBox’s menu go to Devices > Shared Folders. In the dialog that shows up you can specify which folder from your Windows system you want to share with your Ubuntu OS. You will have to specify a Folder Name for each folder you add. Make sure to memorize that name since it will be required later on.

Create a mountpoint
To mount the shared folder, first you have to create a mounpoint. This is a directory in your Ubuntu OS which will reflect the shared folder from Windows – for example:

# sudo mkdir /media/windows-share

With your mountpoint created you can now mount the shared folder, like this:

Mount shared folder
# sudo mount -t vboxsf shared-folder-name /media/windows-share

Where shared-folder-name will be the name you assigned for this folder when you were adding it in the shared folders list.

You could use the /etc/init.d/rc.local script to execute the last command on startup to have the shared folders automatically mounted every time you start your Ubuntu VirtualBox.

sqlplus sys as sysdba
sqlplus: command not found

SQLPLUS is already on your system but you need to run the oracle_env.sh script:

/usr/lib/oracle/xe/app/oracle/product/10.2.0/server/bin/./oracle_env.sh

/usr/lib/oracle/xe/app/oracle/product/10.2.0/server/bin/nls_lang.sh: 114: [[: not found
/usr/lib/oracle/xe/app/oracle/product/10.2.0/server/bin/nls_lang.sh: 114: [[: not found

Again an error message. I took out the if statements around line 114 (:set number in vi to view line numbers) and just left the line ‘locale=$LANG’ by doing:

sudo vi /usr/lib/oracle/xe/app/oracle/product/10.2.0/server/bin/nls_lang.sh

That fixed my language error, then I reran

/usr/lib/oracle/xe/app/oracle/product/10.2.0/server/bin/./oracle_env.sh

Also, edit your .bashrc file
nano ~/.bashrc

Add these lines at the end of the file
ORACLE_HOME=/usr/lib/oracle/xe/app/oracle/product/10.2.0/server
PATH=$PATH:$ORACLE_HOME/bin
export ORACLE_HOME
export ORACLE_SID=XE
export PATH

Logout and back in so your changes take effect.

Trying to start “SQLPLUS …” again, here’s what I got:

SQL*Plus: Release 10.2.0.1.0 - Production on Tue May 4 15:57:10 2010
Copyright (c) 1982, 2005, Oracle. All rights reserved.
Enter password: ERROR: ORA-09925: Unable to create audit trail file

After further research I found out that I had to set the setuid bit on the Oracle executable. Close your terminal session then start a new one to load your environment variables. CD to your $ORACLE_HOME (mine is /usr/lib/oracle/xe/app/oracle/product/10.2.0/server) then go to the bin directory and run the following command:

sudo chmod 6755 oracle

These changes helped me to fix the problems in my Ubuntu system.