Examples of pl/sql code that can be used in training for new developers
Hello
I'm working on a training ride on the pl/sql to some developers who are totally new to PL/SQL. Although they are experienced in another language. I have power point on pl/sql presentations, but they especially the theory oriented with just a few examples. I'm looking for more help to have a few example pl/sql that can be given to interns as the code for example and also to practice. It should be a bit detailed and like to print the odd numbers or print "hellp world." Can anyone help to suggest if there is an example of code that is a bit detailed with a kind of complex problem which will give students a hands good example? I see a nice example at this link: http://tucano.tucanowebdesign.com/oracle/tutorial5.html - on an inventory system. It gives the feeling of being one on the issue of real-world work. So that if anyone knows of some other example say about 150 t0 300 lines or so of the code, I'll be grateful if it is shared.
Thank you
OrauserN
That said, I feel again (my perception) that more code a person writing/comments the better he gets. So, I want students to examine several code examples. I guess I need to see some books to bring out some really long piece of PL/SQL - like case studies.
. . .
But these guys are too busy and so I try to find the net / books some really detailed examples.
But you seem to be overlooking that PL/SQL is supposed to be used for: PL means "procedural language.
So, PL/SQL must be used to 'procedure' treatment; This is typically several process steps. For example, when you want to run three applications as a "TRANSACTION". If all three completed successfully you COMMIT and if any of the three you don't ROLLBACK.
You can do this by using SQL only. And a developer doesn't have to write the code until they have a technical requirements doc that explains what problem the code is supposed to solve and the constraints and requirements that the code must implement.
So, my suggestion is the following:
1. identify and teach the types of issues that PL/SQL is used to help solve. Multi-step transactions, I mentioned above is an example
2. use the documentation and the code of your own organization in the form of samples. These 'guy' is perhaps too busy, but they should be able to provide to you all the documents for the code they wrote and that you use which would be good to use as examples. If they have no documents technical requirements so you just identify a MAJOR gap in the operations of your org that you must bring to the attention of management.
3. you can provide value added a lot more if you use code from your own org as a basis for what you are doing. A very useful training exercise is to ask students to perform 'code review' of a code (a procedure or function) and write simple comments, one line that explain, in plain English, what makes each piece of code.
4 comments, students create to step #3 can actually be incorporated into your code then existing so that future developers can use these comments to understand what the code actually does.
5 part of your 'education' should be on the way to 'test' correctly a piece of code PL/SQL to make sure it is doing what it is supposed to do. Again, if your students actually your own org code allows to create tests, these tests can then be added as a result of 'test' for this application and that adds value. A lot of times those developers 'busy' will not create the actual test cases and that your students can help remedy that. In addition, it does no good to know how to write PL/SQL code if you don't know how to test properly.
Tags: Database
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