June 2023
Intermediate to advanced
480 pages
12h 39m
English
Content preview from Oracle PL/SQL by Example, 6th Edition
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15
Collections
Throughout this book, you have explored different types of PL/SQL identifiers or variables that represent individual elements (for example, a variable that represents a grade for a particular student). However, often in your programs, you want to have the ability to represent a group of elements (for example, the grades for a class of students). To support this technique, PL/SQL provides collection data types that work just like arrays available in other third-generation programming languages.
A collection is a group of elements of the same data type. Each element is identified by ...
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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.