Recent Lessons

Show all results for ""

Feature Overview

Ace your exams with our all-in-one platform for creating and sharing quizzes and tests.

Quizzes

Create quizzes and tests automatically from your content using AI.

Flashcards

Automatically turn your notes into digital flashcards.

Share, Export & Embed

Share with classmates or export to Excel and your learning management system.

Stats & Reporting

Auto-grading quizzes and tests with detailed stats and reports.

Mobile Apps

The smarter way to study – wherever you are.

Pricing

Search...

5 Questions

0 Views

PL/SQL Cursor Example

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the purpose of the DECLARE statement in the given code?

To initialize a variable

To declare a cursor (correct)

To handle exceptions

To execute a SQL statement

What is the data type of the variable v_emp_name?

emp.ename%TYPE (correct)

emp%TYPE

emp.ename%ROWTYPE

emp%ROWTYPE

What will be the output of the DBMS_OUTPUT.PUT_LINE statement in the given code?

The maximum salary of employees in the EMP table

The name of the first employee in the EMP table

The name of the last employee in the EMP table (correct)

The count of employees in the EMP table

What is the purpose of the EXCEPTION block in the given code?

<p>To handle runtime errors</p> Signup and view all the answers

What will happen if the cursor emp_cursor is invalid?

<p>The code will display 'CURSOR NO VALIDO'</p> Signup and view all the answers

Study Notes

Oracle PL/SQL Programming

A declaration section is used to declare a cursor, emp_cursor, which retrieves all records from the emp table.
The v_emp_name variable is declared to store the employee name, and its data type is set to match the ename column in the emp table.
A FOR loop is used to iterate through the records in the emp_cursor cursor.
Within the loop, the v_emp_name variable is assigned the value of the current employee's name (emp_rec.ename).
After the loop, the DBMS_OUTPUT.PUT_LINE function is used to display the name of the last employee processed.
An EXCEPTION block is used to handle the INVALID_CURSOR error, which is raised if the cursor is not valid.
If the INVALID_CURSOR error occurs, the DBMS_OUTPUT.PUT_LINE function is used to display an error message, 'CURSOR NO VALIDO'.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Description

This quiz tests your understanding of PL/SQL cursors using a sample code. It involves declaring a cursor, iterating through the records, and displaying the last employee's name.