Which two program declarations are correct for a stored program unit? (Choose two)

technology databases

  1. CREATE OR REPLACE FUNCTION tax_amt (p_id NUMBER) RETURN NUMBER

  2. CREATE OR REPLACE PROCEDURE tax_amt (p_id NUMBER) RETURN NUMBER

  3. CREATE OR REPLACE PROCEDURE tax_amt (p_id NUMBER, p_amount OUT NUMBER)

  4. CREATE OR REPLACE FUNCTION tax_amt (p_id NUMBER) RETURN NUMBER(10,2)

  5. CREATE OR REPLACE PROCEDURE tax_amt (p_id NUMBER, p_amount OUT NUMBER(10, 2))

Show answer
Correct Option: A,C

AI Explanation

To answer this question, let's go through each option to understand why it is correct or incorrect:

Option A) CREATE OR REPLACE FUNCTION tax_amt (p_id NUMBER) RETURN NUMBER - This option is correct because it declares a stored program unit as a function named "tax_amt" that takes in a parameter "p_id" of type NUMBER and returns a value of type NUMBER.

Option B) CREATE OR REPLACE PROCEDURE tax_amt (p_id NUMBER) RETURN NUMBER - This option is incorrect because it declares a stored program unit as a procedure named "tax_amt". Procedures do not have a RETURN clause to specify a return type.

Option C) CREATE OR REPLACE PROCEDURE tax_amt (p_id NUMBER, p_amount OUT NUMBER) - This option is correct because it declares a stored program unit as a procedure named "tax_amt" that takes in two parameters: "p_id" of type NUMBER and "p_amount" of type OUT NUMBER. The OUT parameter allows the procedure to return a value.

Option D) CREATE OR REPLACE FUNCTION tax_amt (p_id NUMBER) RETURN NUMBER(10,2) - This option is incorrect because the syntax "RETURN NUMBER(10,2)" is not valid. The return type of a function should be specified without precision or scale.

Option E) CREATE OR REPLACE PROCEDURE tax_amt (p_id NUMBER, p_amount OUT NUMBER(10, 2)) - This option is incorrect because the syntax "p_amount OUT NUMBER(10, 2)" is not valid. The OUT parameter should be specified without precision or scale.

The correct answers are A and C. These options correctly declare a stored program unit as a function and a procedure, respectively.

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