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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Chapter 2. Designing PL/SQL Code
The PL/SQL code construction can accommodate SQL to interact with the Oracle database for transactions or data retrieval. The data operations and activities such as iteration, comparison or manipulation is one of the major accomplishments of PL/SQL control structures. In a PL/SQL block, the data fetch strategy is realized through cursor structures. The design and handling of cursor structures forms the basis of the PL/SQL code design. In this chapter, we will understand the cursor structures in detail, their types and implementation along with some best practices. This chapter covers the following topics:
- Cursor fundamentals
- Cursor execution cycle
- Cursor design guidelines
- Cursor attributes
- Overview of implicit cursor ...
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