The best way to learn Recital is to build some applications. The developers of Recital have written a book "Recital Essentials" which you can read here.
Recital 10 enhances the way updating tables with indexes is done. The Recital engine will now evaluate each index individually to determine if any changes being made to the row effect it. If this is not the case then the index is flagged not to be updated. This enhancement helps speed up performance of updates and is particularly noticeable in cluster/network installations.
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:
Specifying this seems to reslove the problem:
-Xmx512m -XX:MaxPermSize=512m
This website runs in a virtual machine under vmware server. It is clustered between two servers using heartbeat and DRBD.
When VMware server starts up a virtual machine it generates a uuid (unique id) based on the machine it is running on and stores this in the .vmx file.
When heartbeat switches from slave to master, it will start VMware server (which is setup as a resource in the haresources file).
Virtual machines that you want started automatically when you start VMware server will not start because the uuid changes between the master and backup systems. To get around this problem always do the following:
- edit the .vmx file and add the following line
uuid.action = "keep"
If this is not done then everytime you try to run the virtual machine on the backup system in your cluster, VMware server will complain that the virtual machine has been copied or moved and it will not start it.
- set the virtual machine to power off when vmware is stopped. Do not set this to "suspend" or it will not restart on the backup machine.
This will allow the virtual machine to start properly on the backup machine.
Recital provides a wide variety of connectivity solutions to external data sources. This article provides an overview.
Recital 10 enhances the APPEND FROM command. The enhancement added the following syntax ;
APPEND FROM TYPE CSV <file-name.csv>The TYPE keyword has now been enhanced to support a comma separated values (CSV) format
Key features of the Recital scripting language include:
What are the key feature of the Recital database?
- High performance database application scripting language
- Modern object-oriented language features
- Easy to learn, easy to use
- Fast, just-in-time compiled
- Develop desktop or web applications
- Cross-platform support
- Extensive built-in functions
- Superb built-in SQL command integration
- Navigational data access for the most demanding applications
There is a good article here this describes agile software development techniques. This is what we have always been doing but it's nice to see it defined formally.
We use this technique ourselves on our development portal.
Recital 10 introduced the ARRAY( ) functions. This function operates in the same way as the PHP ARRAY( ) function. It can be used to declare a dynamic or associative array and optionally initialize it with elements.
// declare an empty dynamic array
a = array()
// declare a simple dynamic array
a = array("barry", "recital", "boston")
foreach a as value
echo value
endfor
// declare an associative array
a = array("name" => "barry", "company" => "recital", "location" => "boston")
echo "length of a is " + len(a)
foreach a as key => value
echo "key=" + key + ", value=" + value
endfor
Recital is a proven and cost-effective database solution that will help reduce the cost of your database and application software infrastructure substantially. As an added benefit, Recital can run many legacy applications with little to no change as it understands FoxBASE, FoxPRO and Clipper languages as a subset of it's overall capability.