How can PL/SQL be best used for the ETL process?
PL/SQL, Oracle's procedural programming language, is a solid choice for an ETL tool. However, you must realize that PL/SQL is not an ETL tool, but a programming language with almost unlimited ETL capabilities.
If you do decide that PL/SQL is your ETL "tool" of choice, you will find that any ETL function that you require will be available. So if you wish to read files into the database, you can use an external table or SQL*Loader, but if you use PL/SQL you could use the UTL_FILE package and then use looping and conditional processing as you require. The options are almost limitless.
So I think that PL/SQL could be your ETL solution if you have no other tools available. Another approach might be writing procedures, packages and functions that may be used by an ETL tool. This is usually done when complicated transformations cannot be efficiently implemented in the ETL.
As you can see PL/SQL fits well into any ETL process.
Dig deeper on Using Oracle PL-SQL
Related Q&A from Ian Abramson, Director, Enterprise Data Group, Thoughtcorp
I am evaluating ETL tools for the organization. Considering that I am looking at three or four tools, how do I rate these and put a weight-age for ...continue reading
What are the pros/cons of custom development vs. an ETL tool? The question of custom code versus the use an ETL tool is one that we are faced with ...continue reading
ETL tools provide very robust support for complex business logic.continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.