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Recital Object-Oriented programming primer

Recital is a dynamic programming language particularly suited to the development of database applications. While Recital still supports standard procedural programming, new extensions to the language give you the power and flexibility of object-oriented programming. Object-oriented design and object-oriented programming represent a change in focus from standard procedural programming. This short primer will give you a good understanding of how to program object-oriented Recital.
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Increase memory allocation for Eclipse CDT on linux

If you use Eclipse Ganymede with large projects on linux you may run out of memory. To prevent this happening, you can specify the amount of memory to be allocated to Eclipse in the eclipse.ini file which is located in the eclipse directory.

Specifying this seems to reslove the problem:

-Xmx512m
-XX:MaxPermSize=512m

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Origins of "Open Source"

In an interesting article at Linux Magazine, Sam Ockman discusses the origin of the term "Open Source". Check it out here.
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Get active locks information on Redhat/Centos 5.3

lslk lists information about locks held on files with local inodes on systems running linux.

Install it with:

yum install lslk
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Where are errno constants defined on Redhat/Centos/Fedora

These can be found in:

/usr/include/asm-generic

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TOOLS: Use hdparm to modify ATA/SATA drive ioctls

Hdparm can be used to view or set many hardware characteristics of IDE or SATA drives including optical drives (and even some SCSI drives).  For example, the read-lookahead feature can be enabled or disabled.  Also of interest is that the on board write caching can be disabled.  This may or may not be of use when trying to optimize the writing of data to the drive especially when the operating system and/or file system itself may also perform write caching.

Some options of hdparm are dangerous and are generally listed as such in the man page.

Hdparm is available from SourceForge and there is even a version for Windows.
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TOOLS: Eclipse subversion plugin

Subclipse is an Eclipse Team Provider plug-in providing support for Subversion within the Eclipse IDE. This plugin is required in order to use the recital eclipse workspace.
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Recital Oracle Gateway: finding Oracle shared library

TIP
The Recital Oracle Gateway requires the Oracle libclntsh.so shared library.  If this file is unknown to ld.so.conf, add it using the ldconfig command. 
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HOWTO: Installing 64bit Recital on Linux

For Recital to run correctly on 64bit Linux you require the ia32 shared libraries.

The 64bit port of Recital requires these libraries to allow access to 32bit Xbase and C-ISAM data files which are 32bit.

If you do not have these libraries installed you will either get a "can't find db.exe" or an "error loading shared libraries" when trying to run or license Recital.

Installing the ia32 shared libraries

Redhat EL 5 / Centos 5 / Fedora 10

  1. Insert the Red Hat Enterprise Linux 5 Supplementary CD, which contains the ia32el package.

  2. After the system has mounted the CD, change to the directory containing the Supplementary packages. For example:

    cd /media/cdrom/Supplementary/

  3. Install the ia32el package:

    rpm -Uvh ia32el-<version>.ia64.rpm

Alternatively: Note you must have the required repo's enabled. 
 yum install ia32el

Ubuntu / Debian

sudo apt-get install ia32-libs

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Recital 10 Express Edition Linux x86

Recital 10 Express Edition Linux x86 Free Download.

Recital 10 introduces the free single-user developer edition called Recital Express that can be used to develop and test multi-user Recital, Recital Server and Recital Web applications. Once the applications are ready for deployment a commercial license must be purchased. Recital Express, Recital Server Express and Recital Web Express can be used unlicensed for non-commercial purposes only.

What does this download include:

Recital 10

A powerful scripting language with an embedded database used for developing desktop database applications on Linux and Unix. Recital has a high degree of compatibility with Microsoft FoxPRO enhanced with many additional enterprise class extensions.

 Web

Recital 10 Web

A server-side scripting language with an embedded database for creating web 2.0 applications. Includes plugins for apache and IIS. Coming soon! Recital Web Framework, a comprehensive OO framework built on YUI for building RIA (Rich Internet Applications) in Recital Web.

Recital 10 Server

A cross-platform SQL database and application server which includes client drivers for ODBC, JDBC and .NET enabling Recital data to be accessed client/server from Windows, Linux and Mac.

  Safe

Recital 10 Replication

A comprehensive replication product that addresses urgent data movement and synchronization needs to help support disaster recovery and business continuity for Recital applications.

Recital 10 Quick Start:

Graphical Installation

Note: The installation must be run as root. For systems with a hidden root account, please use ’Run as Root’.

  1. Download the distribution file into a temporary directory
  2. Check that the distribution file has the execute permission set
  3. Run the distribution file
  4. Follow the on screen instructions:
    1. License agreement
    2. Select components
    3. Installation directory and shortcuts
    4. Linking to /usr/bin
    5. ODBC Installation type (Recital Server / Recital Client Drivers)
    6. Java Virtual Machine selection (Recital Server / Recital Client Drivers)
    7. TomCat Installation type (Recital Server / Recital Client Drivers)
    8. Apache Firecat Plugin Installation (Recital Web Developer)
    9. Replication Service Type (Recital Replication Server)
    10. Install license file

Text Installation

Note: The installation must be run as root. For systems with a hidden root account, please precede commands with ’sudo’.

  1. Download the distribution file into a temporary directory
  2. Check that the distribution file has the execute permission set
  3. Run the distribution file
  4. Follow the on screen instructions:
    1. License agreement
    2. Select components
    3. Installation directory and shortcuts
    4. Linking to /usr/bin
    5. ODBC Installation type (Recital Server / Recital Client Drivers)
    6. Java Virtual Machine selection (Recital Server / Recital Client Drivers)
    7. TomCat Installation type (Recital Server / Recital Client Drivers)
    8. Apache Firecat Plugin Installation (Recital Web Developer)
    9. Replication Service Type (Recital Replication Server)
    10. Install license file


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