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    Updating a record through cursor

    In the online version (which also matches the quiz offered at PL/SQL Challenge, both a and b are correct.Visit PL/SQL Challenge to read a complete explanation of the answers to this quiz. If the SELECT statement identifies more than one row to be fetched, Oracle Database will raise the TOO_MANY_ROWS exception.It would take a series of articles to describe all the functionality of a cursor.For the purpose of this article I'm only going to focus on how to use the default scrolling functionality of a cursor.Microsoft is conducting an online survey to understand your opinion of the Msdn Web site.If you choose to participate, the online survey will be presented to you when you leave the Msdn Web site. A cursor is a pointer to a private SQL area that stores information about the processing of a SELECT or data manipulation language (DML) statement (INSERT, UPDATE, DELETE, or MERGE).

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    A cursor is basically a set of rows that you define based on a record set returned from a query.Or you might have a set of records where you want to process through each record one at a time, so you can select additional information from another table based on the information contained in each record.This article will discuss two different ways to process through a set of records one record at a time.The syntax of this statement is The PL/SQL Challenge question in last issue’s “Wrap Up Your Code in a Neat Package” article focused on how the values assigned to package-level variables persist in your session and asked, “Which of the choices will display ‘3’ after execution?” In the print version of the article, only choice a was correct.

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