Andrei DANEASA » download

Upgrade Oracle APEX 3.2.1 to 4.0.1 on Oracle Database 10g Express Edition (XE)

andreiash — Thu, 09 Sep 2010 14:29:03 +0000

Apex is a great tool for rapid web applications based on Oracle Database. It’s free, and if you’re happy with Oracle XE’s limitations, then it’s perfect, you have the database free as well. I’ve been following APEX for long time ago, since it was called HTML DB, and wrote 2+ years ago a guide how to install APEX on XE.

Now APEX 4.0.1 is GA and most of the people would like to upgrade. It’s very simple.

1. Download APEX from OTN

2. Unzip it making sure you don’t change the name of the apex folder inside the zip.

unzip apex_4.0.1.zip /tmp/
cd /tmp/apex

3. Connect to your XE installation

sqlplus / as sysdba

4. Run the installation script

SQL> @apexins SYSAUX SYSAUX TEMP /i/

5. Wait 10-15 minutes then connect again as sysdba and import images

SQL>@apxldimg.sql /tmp

!do not put the “apex” folder in the path there

That’s it, no more unlock account, set password, set port, you already did this on the previous installation.

Enjoy!

Install Oracle 10g XE on Ubuntu Server 9.04 Jaunty Jackalope

Disadvantages of using Oracle Database 10g XE (Express Edition)

Oracle Database 11g Release 2 available on Windows… finally

SQL Developer 2.1 EA1 available

Oracle Database 11g Release 2 available on Windows… finally

andreiash — Sat, 03 Apr 2010 17:49:08 +0000

Approx. 4 months after the Linux release, the Windows version of 11gR2 arrived on OTN silently.

Just 64bit version for the moment, but I’m sure the 32bit version will follow soon. Considering the fact there is nothing on corporate blogs or on eDelivery, I’m sure they will make it public after both version will be available, most probably after Easter.

Regarding the version itself, I used the beta versions and will definitely recommend it.

LATER UPDATE (6th of April): 32bit version has just arrived on OTN here.

Enjoy!

Oracle Database 11gR2 is now GA

Upgrade Oracle APEX 3.2.1 to 4.0.1 on Oracle Database 10g Express Edition (XE)

Install Oracle Database Vault on patched 11g database (11.1.0.7) on Windows

Oracle APEX 3.1 installation on Oracle Database 10g XE

Book review: SQL Developer 2.1 by Sue Harper (Packt Publishing)

Install subversion for VPS (cPanel) under CentOS

andreiash — Fri, 12 Mar 2010 11:26:33 +0000

I’ve been tasked to add some features (subversion is one of them) under a Virtual Private Server (cPanel WHM) on a Hosting site.

First I downloaded and unarchived subversion:

mkdir -p /usr/local/src/subverison
cd /usr/local/src/subversion
wget http://subversion.tigris.org/downloads/subversion-1.6.9.tar.bz2
tar xfj subversion-1.6.6.tar.bz2

Since the last versions are requiring SQLite, I had to download and copy one file from sqlite folder to subversion folder:

cd ..
wget http://www.sqlite.org/sqlite-amalgamation-3.6.13.tar.gz
tar -xvf sqlite-amalgamation-3.6.13.tar.gz
mkdir subversion-1.6.9/sqlite-amalgamation
cp sqlite-3.6.13/sqlite3.c subversion-1.6.9/sqlite-amalgamation/sqlite3.c
cd subversion-1.6.9

Configure, make and install:

./configure –with-apxs=/usr/local/apache/bin/apxs –with-apr=/usr/local/apache/bin/apr-config –with-apr-util=/home/cpeasyapache/src/httpd-2.2.9/srclib/apr-util \
make
make install

Then creating a repository:

cd /
mkdir svn && cd svn
svnadmin create –fs-type fsfs

Create a template for my projects and initialize repository:

mkdir /svntemp
cd /svntemp

mkdir website1
mkdir website1/trunk
mkdir website1/branches
mkdir website1/tags

svn import /svntemp file:///svn/ –message "Creating initial repo."

svn list –verbose file:///svn/

Create users inside authz file and add them to svnserve.conf. You might want to set anonymous permissions to none.

Access your svn via internet with:

svn:///svn//website1/trunk

Voila!

Related posts:

Ubuntu 9.10 Karmic Koala released

Install Oracle 10g XE on Ubuntu Server 9.04 Jaunty Jackalope

Upgrade Oracle APEX 3.2.1 to 4.0.1 on Oracle Database 10g Express Edition (XE)

Install Webmin on Ubuntu Server or Desktop 10.10 Maverick Meerkat

Install Webmin on Ubuntu Server or Desktop 10.04 Lucid Lynx

Ubuntu 9.10 Karmic Koala released

andreiash — Thu, 29 Oct 2009 16:30:14 +0000

Hey, Ubuntu 9.10 (Karmic Koala) is out of beta and is now available for download here.

To see what’s new just check the release notes. From my feeling after testing the beta, It’s pretty similar to 9.04 (Jaunty Jackalope) but with some package updates and improvements.

Don’t wait, go and take it.

Install Webmin on Ubuntu Server or Desktop 10.10 Maverick Meerkat

Install Webmin on Ubuntu Server or Desktop 10.04 Lucid Lynx

Install subversion for VPS (cPanel) under CentOS

Install Webmin on Ubuntu Server or Desktop 9.10 Karmic Koala

Oracle Database 11gR2 is now GA

andreiash — Tue, 01 Sep 2009 12:46:42 +0000

Yes, it finally arrived! Check this out!

Upgrade Oracle APEX 3.2.1 to 4.0.1 on Oracle Database 10g Express Edition (XE)

Install Oracle 10g XE on Ubuntu Server 9.04 Jaunty Jackalope

Windows authentication connection to SQL Server from SQL Developer

SQL Server 2005 named instance in Oracle SQL Developer

Install Oracle 10g XE on Ubuntu Server 9.04 Jaunty Jackalope

andreiash — Sun, 31 May 2009 07:32:11 +0000

Best way to have a easy to access XE database and APEX on top of it is to put them on a Ubuntu Server virtual machine that I start just when I need.

Installation of 10g Express Edition should not take more than 10 minutes and the steps are below:

1. Prepare the swap space
If you have less than 1GB memory run the following commands to create swap space:

$ sudo dd if=/dev/zero of=/swpfs1 bs=1M count=1000
$ sudo mkswap /swpfs1
$ sudo swapon /swpfs1

2. Add new Aptitude source and get the GPG key for Oracle
2.1. First modify /etc/apt/sources.list file:

$ sudo vi /etc/apt/sources.list

2.2. Append following line:

deb http://oss.oracle.com/debian unstable main non-free

2.3. Save and close the file. Next import GPG key:

$ wget http://oss.oracle.com/el4/RPM-GPG-KEY-oracle -O- | sudo apt-key add -

2.4. Update package database:

$ sudo apt-get update

3. Install Oracle 10g XE:

$ sudo apt-get install oracle-xe

4. Post-install configuration
4.1. You must configure Oracle TCP/IP port and other parameters. Simply type the following command:

$ sudo /etc/init.d/oracle-xe configure

4.2. Add environment variables in .profile

$ cd ~
$ vi .profile

Add the following lines:

export ORACLE_SID=XE
export ORACLE_HOME=/usr/lib/oracle/xe/app/oracle/product/10.2.0/server
export PATH=$PATH:$ORACLE_HOME/bin

Good luck,
Andrei

Oracle APEX 3.1 installation on Oracle Database 10g XE

Ubuntu 9.10 Karmic Koala released

Disadvantages of using Oracle Database 10g XE (Express Edition)

Oracle Database 11g Release 2 available on Windows… finally

10 tools I am using everyday

andreiash — Sat, 30 May 2009 20:07:26 +0000

Total Commander - File Manager – I am using it since version 3, ~10 year ago. Simply not replaceable.

Pidgin - Instant Messaging – Single client for all protocols, including Oracle internal one.

Launchy - Application Launcher – just press ALT+Space and write a few letters from app name to start it

MPlayer – Movie Player – no GUI, just console, very quick, no need to install codecs. Some issues with external monitor.

Firefox - of course, user since version 0.9 Beta

Dropbox - File Sync – simple sync of some folders between laptops or laptop and desktop. As a bonus files are stored online and you get revisions history

Google Mail – Personal Email – lot of space, even bought extra. Can also use it to read other POP3 accounts, all in a single interface.

Google Reader – RSS reader – the best RSS reader

Google Calendar – Calendar – simple to use, simple to share, to sync. Can also use it to read other calendars.

TripIt – Booking Manager – just forward all the travel plans to Tripit and you’ll have your itinerary ready, published as a web calendar, links to online check-in and other usefull stuff.

Related posts:

Oracle SQL Developer 1.5.1 is out

Vista cannot get IP from some routers or some DHCP servers

Upgrade Oracle APEX 3.2.1 to 4.0.1 on Oracle Database 10g Express Edition (XE)

Oracle Database 11g Release 2 available on Windows… finally

Install subversion for VPS (cPanel) under CentOS

Windows authentication connection to SQL Server from SQL Developer

andreiash — Fri, 29 May 2009 19:01:30 +0000

Trying to connect to SQL Server 2000 or 2005 from Oracle SQL Developer having Windows Authentication enabled on SQL Server will fail with:
“I/O Error: SSO Failed: Native SSPI Library not loaded. Check the java.library.path system property.”

The solution is simple: place a dll called NTLMAUTH.DLL (NT authentication) in your system path and restart SQL Developer. Windows/System32 is always a wise choice.

Where to get this DLL? It is shipped with JTDS here.

Is there another option? Yes, enable SQL Server authentication.

Oracle SQL Developer 1.5.1 is out

Upgrade Oracle APEX 3.2.1 to 4.0.1 on Oracle Database 10g Express Edition (XE)

Oracle Database 11g Release 2 available on Windows… finally

Book review: SQL Developer 2.1 by Sue Harper (Packt Publishing)

Thumbnail generation with PHP tutorial

andreiash — Thu, 08 Jan 2009 08:19:25 +0000

No, it’s not yet another PHP thumbnail generation tutorial! I recently needed a function to:

create square thumbnails
don’t crop the initial image, but scale it and fill with white background
center the thumbnail in the square
call the function in a loop to process an entire folder

I found no suitable example and I decided that instead of digging too much it’s better to create my own function and a class for it.

Let’s start with a photo that we need to create a thumbnail for:

Nice kid, huh?

… and what we want to achieve:

First step would be the thumbnail generation snippet:

$square_size = 167;
$quality = 100;
//get original image attributes
list($width, $height, $type, $attr) = getimagesize($photos_dir."/".$file);
$thumb=imagecreatefromjpeg($photos_dir."/".$file);
$thumb_p = imagecreatetruecolor($square_size, $square_size);
imagecopyresampled($thumb_p, $thumb, 0, 0, 0, 0, $square_size, $square_size, $width, $height);
//save the file
imagejpeg($thumb_p,$thumbs_dir."/".$file,$quality);

This would be the result:

As we can see, the photo is distorted and we need to scale it, by adding 2 variables:

//set dimensions
if($width> $height) {
$width_t=$square_size;
//respect the ratio
$height_t=round($height/$width*$square_size);
} elseif($height> $width) {
$height_t=$square_size;
$width_t=round($width/$height*$square_size);
}
else {
$width_t=$height_t=$square_size;
}

We also need to change the imagecopyresampled function call to add these 2 new variables:

imagecopyresampled($thumb_p, $thumb, 0, 0, 0, 0, $width_t, $height_t, $width, $height);

The new result would be:

The image is not distorted anymore but now it’s not centered. We need to move the point where the scaled image appears on the thumb to the right with a number of pixels equal to the half of the difference between height and width of the thumb. This offset is implemented also in the imagecopyresampled function, the first 2 zeros from the set of 4.

//set dimensions
if($width> $height) {
$width_t=$square_size;
//respect the ratio
$height_t=round($height/$width*$square_size);
//set the offset
$off_y=ceil(($width_t-$height_t)/2);
$off_x=0;
} elseif($height> $width) {
$height_t=$square_size;
$width_t=round($width/$height*$square_size);
$off_x=ceil(($height_t-$width_t)/2);
$off_y=0;
}
else {
$width_t=$height_t=$square_size;
$off_x=$off_y=0;
}

We also need to change the imagecopyresampled function call to add these 2 new variables:

imagecopyresampled($thumb_p, $thumb, $off_x, $off_y, 0, 0, $width_t, $height_t, $width, $height);

The new thumbnail look like this:

It’s better, the last thing I want is to set a white background to the thumb and I’m done. By default imagecreatetruecolor is creating a black canvas with no parameter to change it to white. In order to do this we need to declare a white background and fill the canvas with it BEFORE adding the scaled image:

$bg = imagecolorallocate ( $thumb_p, 255, 255, 255 );
imagefill ( $thumb_p, 0, 0, $bg );

Now it’s what I want:

The whole source code is the following:

function set_thumb($file, $photos_dir=‘uploads/photos’,$thumbs_dir=‘uploads/photos/thumbs’, $square_size=167, $quality=100) {
//check if thumb exists
if (!file_exists($thumbs_dir."/".$file)) {
//get image info
list($width, $height, $type, $attr) = getimagesize($photos_dir."/".$file);

//set dimensions
if($width> $height) {
$width_t=$square_size;
//respect the ratio
$height_t=round($height/$width*$square_size);
//set the offset
$off_y=ceil(($width_t-$height_t)/2);
$off_x=0;
} elseif($height> $width) {
$height_t=$square_size;
$width_t=round($width/$height*$square_size);
$off_x=ceil(($height_t-$width_t)/2);
$off_y=0;
}
else {
$width_t=$height_t=$square_size;
$off_x=$off_y=0;
}

$thumb=imagecreatefromjpeg($photos_dir."/".$file);
$thumb_p = imagecreatetruecolor($square_size, $square_size);
//default background is black
$bg = imagecolorallocate ( $thumb_p, 255, 255, 255 );
imagefill ( $thumb_p, 0, 0, $bg );
imagecopyresampled($thumb_p, $thumb, $off_x, $off_y, 0, 0, $width_t, $height_t, $width, $height);
imagejpeg($thumb_p,$thumbs_dir."/".$file,$quality);
}
}

*Note: Nobody was hurt during this tutorial. The cute dude is Razvan‘s son, Danut.

Looking for an old version of a specific software?

andreiash — Mon, 24 Nov 2008 06:42:52 +0000

Most software companies are not offering anymore the old versions on their websites in order to promote their last release and get rid of support issues with old versions. But what if I don’t like the last version or it has something that is not working for me?

Well… seems that somebody thought about this and managed to collect all old versions of 182 programs (so far) and made them public. All licensing terms remain the same.

The link is www.OldVersion.com.

Enjoy!