May 2012
Intermediate to advanced
440 pages
9h 1m
English
Content preview from Oracle Advanced PL/SQL Developer Professional GuideBecome 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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Determining identifier types and usages
All the local declarations of a program unit are categorized as identifiers. An identifier's declaration locates a memory on the server and keeps it busy until the program unit is executed or terminated. Redundant identifiers must be recognized within a program so as to restrict them from holding a chunk of memory for no operation.
Oracle provides a tool known as PL/Scope to monitor the activities of identifiers in a program. It is one of the new features in Oracle 11g.
The PL/Scope tool
The PL/Scope tool compiles and captures the information of the identifiers declared and used in a program. Once the feature is enabled, the language compiler filters out the identifier's information and stores it in a dictionary ...
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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.