December 2010
Intermediate to advanced
451 pages
11h 16m
English
Content preview from Oracle and PL/SQL Recipes: A Problem-Solution Approach
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10-4. Creating and Accessing Record Collections
Problem
You need to load records from a database table or view into a simple data structure that would benefit from use in a loop body or to pass as a parameter to another function or procedure. You want to act upon sets of records as a single unit.
Solution
Use a TYPE to define a TABLE based on the database table structure. The following example declares a cursor and then uses it to declare the table of records. The result is a variable named recs that holds the data fetched by the cursor.
DECLARE
CURSOR driver IS
SELECT *
FROM employees;
TYPE emp_type IS TABLE OF driver%ROWTYPE INDEX BY BINARY_INTEGER;
recs emp_type;
total number := 0.0;
BEGIN
OPEN DRIVER; FETCH DRIVER ...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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