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Stored Functions in SQL: University of Science and Technology of Southern Philippines Alubijid

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Questions and Answers

What keyword in MySQL is used to create a stored function?

DELIMITER
FUNCTION (correct)
CREATE
RETURNS

How does a deterministic function behave in MySQL?

It doesn't return any value
It returns different results for the same input parameters
It executes the function randomly
It always returns the same result for the same input parameters (correct)

What does the DETERMINISTIC keyword specify in a stored function in MySQL?

Whether the function is deterministic or not (correct)
The input parameters of the function
The return value data type
The name of the stored function

In MySQL, what should you specify after listing all parameters of a stored function?

The return value data type (D) Signup and view all the answers

What does an INOUT parameter allow in a stored procedure?

Pass the argument and modify the parameter (A) Signup and view all the answers

Which of the following best describes a function in SQL?

A stored program that returns a single value (B) Signup and view all the answers

What is the main purpose of a trigger in a database?

Execute SQL statements based on specific events (D) Signup and view all the answers

In SQL, what does a WHILE loop do?

Executes a block of code repeatedly as long as a condition is true (D) Signup and view all the answers

What is the purpose of the RETURN statement inside a stored function?

To return a value to the calling program (D) Signup and view all the answers

In the context of stored functions, what happens when the RETURN statement is encountered?

The execution of the function is immediately terminated (D) Signup and view all the answers

What defines deterministic functions in the context of stored procedures?

They always return the same result given the same input values (A) Signup and view all the answers

How can self-joins be related to stored functions in database operations?

Self-joins allow one table to be joined with itself (C) Signup and view all the answers

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