October 1996
Intermediate to advanced
687 pages
16h 41m
English
Content preview from Advanced Oracle PL/SQL Programming with Packages
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17.1. Who Needs Online Help?
PL/Vision contains many packages, with many programs in each package. Despite its complexity, since I am the author of PL/Vision I should be intimately familiar with all aspects of the product. So you can imagine my frustration when I can't remember precisely how to call one of my own packaged programs, and have to go scrounging through the source code to figure it out. I fume to myself: "You wrote this stuff! Can't you remember what it does and how it does it?" But the sad fact is that I cannot remember all the finer nuances of my finer creations. As a result, valuable moments are lost from my life.
What I really need is online help so that when I am confused, I can type in a short, easy-to-remember command (along the lines of HELP!) and get the information I need.
To give you an understanding of my frustration, I offer the following transcript of a session with SQL*Plus (words in italics reflect the inner thoughts of yours truly trying to get something done).
I fire up SQL*Plus. On the one hand, I sigh at having to deal with this command-line, non-GUI interface. On the other hand, I know that this is the fastest, leanest environment in which to compile and run PL/SQL programs. Here I go...
SQL>
All right, now I want to parse a string into separate tokens. Let's see, that's gotta be the PLVlex package and the getnext function.
SQL> VARIABLE toke VARCHAR2(30); SQL> exec :toke := PLVlex.getnext ('this is it'); begin :toke := PLVlex.getnext ('this is ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.