Skip to Main Content
Advanced Oracle PL/SQL Programming with Packages
book

Advanced Oracle PL/SQL Programming with Packages

by Steven Feuerstein
October 1996
Intermediate to advanced content levelIntermediate to advanced
687 pages
16h 41m
English
O'Reilly Media, Inc.
Content preview from Advanced Oracle PL/SQL Programming with Packages

11.1. Why PLVobj?

PL/Vision contains a number of utilities which analyze and manipulate the contents of data dictionary views containing PL/SQL code source text. These utilities convert the case of a PL/SQL program, analyze which external programs and package elements a program references, display stored source code, show compiler errors, etc. In each of these cases I needed to take the same or similar actions again and again:

  • Accept a string from the user that specifies the program unit he wants the package to work with. Convert it to the owner-name-type information I need to use when working with the data dictionary views.

  • Fetch rows from one or more data dictionary views based on the program unit specified.

I would like to be able to say that as I began writing my first source-related utility I instantly recognized the need to create a package like PLVobj. The truth is that my first read of the situation was that it was very easy to define a cursor against USER_OBJECTS and get what I needed for my package. So I just started hacking away. I built the first version of my program and got it working. And then I started on my next utility. Suddenly I was confronted with having to write the same (or very similar) kind of code again. I was troubled by the redundancy. Still, it was pretty simple stuff, so I went ahead with the duplication of code. I got that second utility to work as well. Then I sent the packages to one of my devoted beta testers. He installed them in a networked environment ...

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,
and much more.
Start your free trial

You might also like

Oracle Database 12c PL/SQL Programming

Oracle Database 12c PL/SQL Programming

Michael McLaughlin
Oracle PL/SQL for DBAs

Oracle PL/SQL for DBAs

Arup Nanda, Steven Feuerstein
Expert Oracle PL/SQL

Expert Oracle PL/SQL

Ron Hardman, Michael McLaughlin

Publisher Resources

ISBN: 1565922387Supplemental ContentCatalog PageErrata