Perhaps one of the most powerful yet underutilized features of the Banded Report Writer is the ability to pull data from programmatic data sources. As the name suggests, developers can define data sources using BASIC+ stored procedures as an alternative to the traditional method of pulling data from database tables. Conceptually, this should be very familiar to Revelation developers as this takes the concept of a calculated column (aka symbolic field) and elevates it to an entire table. In fact, our team takes its cue from this similarity and uses virtual table interchangeably with programmatic data source. If you are unfamiliar with programmatic data sources, read on for an explanation of how they are configured.
Recently a client asked us if there was a way to call OpenInsight externally using a URL syntax. Initially we were confused because this client was already using the OECGI to enable HTTP access (i.e., via a URL syntax) into his application. After a few more email exchanges we came to understand that the client was interested in creating a custom URI Scheme for OpenInsight like so:
Over the past couple of years, SRP has been quite busy working with other development teams on projects requiring integration between OpenInsight and SQL database servers. In most cases, these systems already had interfaces designed around ODBC. While functional, we proposed converting these ODBC processes to ActiveX Data Objects (ADO) to improve performance, reliability, and ease of maintenance. While ADO is certainly not new and has been promoted within the Revelation community for many years, we’ve met a number of developers who are still unfamiliar with it. We concluded this is mainly due to two reasons: 1.) adherence to the adage, “if it ain’t broke then don’t fix it”, and 2.) general confusion about how to make it work. This article hopes to clear up any uncertainty regarding ADO and perhaps encourage others to give it another look.
As a provider of two framework products for OpenInsight, we recommend our customers create a dedicated application (e.g., FRAMEWORKS) to maintain the original framework entities. Then the business (or commercial product) application should be created to inherit from this application rather than directly from the Default Inheritance (i.e., SYSPROG). This is easy enough when the local application has not yet been created. However, there are times when the child application already exists. This brings up the question, “Is there an easier way to change an application’s parent without having to back up the local app, delete it, and then recreate it with new inheritance?” Indeed there is.
It is not a matter of if it will happen, but when it will happen: a system will require some data to be restored. Like any restoration project, there are numerous ways to approach this task and typically the best method will depend upon the scope of the restoration. In our world, this can range from restoring an entire volume of database tables to a select group of database rows. Recently, one of our enterprise clients ran into this very problem when pre-existing business logic simply wiped out a number of critical records. This situation quickly became an urgent priority since it was directly impacting production on the factory floor. Fortunately, since only a few rows were affected the effort required to recover the data from a backup was rather simple.
Unless you’ve stayed in extended winter hibernation, you already know that Revelation Software officially released OpenInsight 10 three weeks ago. Furthermore, SRP embraced this release and was pleased to announce the general availability of our 64-bit controls and freeware utilities. The number of new enhancements and features in OpenInsight 10 can be overwhelming to learn. Fortunately, there are a number of articles and opportunities available to quickly get you up to speed. We encourage our readers to visit the following sites:
Welcome to volume 1 of a new blog series. SRP Tech Bites will be different from our normal tutorial oriented articles since it will provide readers with several smaller nuggets of potentially useful information. While these juicy morsels will mostly be oriented toward OpenInsight, we will expand your palette by including useful information from a wider range of technology topics. With the release of this inaugural edition of SRP Tech Bites, we extend an invitation to all of our readers to contribute their own delicacies. So don’t be shy…we are happy to share the limelight. Until next time, please enjoy a sampling from today’s menu…