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Oracle PL/SQL for DBAs
book

Oracle PL/SQL for DBAs

by Arup Nanda, Steven Feuerstein
October 2005
Intermediate to advanced content levelIntermediate to advanced
454 pages
14h 44m
English
O'Reilly Media, Inc.
Content preview from Oracle PL/SQL for DBAs

Records

Each row in a table has one or more columns of various datatypes. Similarly, a record is composed of one or more fields. There are three different ways to define a record, but once defined, the same rules apply for referencing and changing fields in a record.

The block below demonstrates the declaration of a record that is based directly on an underlying database table. Suppose that I have defined a table to keep track of my favorite books:

    CREATE TABLE books (
      book_id         INTEGER,
      isbn            VARCHAR2(13)
      title           VARCHAR2(200),
    );

I can then easily create a record based on this table, populate it with a query from the database, and then access the individual columns through the record’s fields:

    DECLARE
       my_book   books%ROWTYPE;
    BEGIN
       SELECT *
         INTO my_book
         FROM books
        WHERE title = 'Oracle PL/SQL Programming, 4th Edition';
    END;
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Publisher Resources

ISBN: 0596005873Supplemental ContentErrata Page