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Pega stores its data in the database via concrete classes, which are automatically mapped to a database table. This database table typically includes a BLOB column.
Sometimes you might be provided with data from an existing database table, and instead of porting all the data into Pega concrete classes with the BLOB column, you might simply want to create a class that points to it, without changing its original table structure.
This "Using External Tables Snippets" explores this mapping as well as other usages. Pega Snippets' content is designed to evolve over time, therefore its content will be enhanced and will get richer over time.
Why Create a Pega Snippets?
The main reason is that writing a REAL book takes a lot of time and effort!
I have acquired a lot of knowledge and samples over the years, and if I were to share it via the traditional book publishing mechanism, it would take a long time to share all of those!
Therefore, a better way would be to share it via the Snippets Series, which is a collection of task-specific steps, with screenshots, to demonstrate how to do specific tasks in Pega.
The focus of "Snippets" is on performing specific tasks in Pega, not on the 'why', other alternatives, or providing explanation of the potential problems that one might encountered. It also does not go into detailed explanation or discussion on the task/topic. In short, the focus is on accomplishing the task.
Snippets are distributed as eBooks, which not only provides the ability to share knowledge in a timely manner, it also enables constant update of the knowledge.
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The author is a Pega CLSA, certified in the new Pega CLSA Path (7.3/7.4). Academically, he has a master's degree and has experiences in teaching undergraduates pursuing master's and bachelor's degrees in World renowned universities.
Combining the above with his over 20 years of IT experiences in various MNCs, the author decided to write this series of Pega How-to Guide to help aspiring system architects to implement Pega in a faster, cleaner and more efficient way.
