You want to create a stored procedure that accepts a number, doubles it, and returns the doubled value using parameters. Which parameter mode should you use and why?

hard📝 Application Q8 of 15

SQL - Stored Procedures and Functions

AIN, because it passes the value and returns the result automatically

BINOUT, because it allows passing a value in and returning the modified value

COUT, because it only passes the value into the procedure

DIN, because it allows modifying the input parameter directly

Step-by-Step Solution

Solution:

Step 1: Understand parameter modes
IN passes value in, OUT returns value, INOUT does both.
Step 2: Requirement analysis
Procedure must accept a value and return the doubled value via parameters.
Step 3: Choose correct mode
INOUT allows input and output through the same parameter, suitable for doubling.
Final Answer:
INOUT, because it allows passing a value in and returning the modified value -> Option B
Quick Check:
INOUT supports input and output [OK]

Quick Trick: INOUT passes and returns value [OK]

Common Mistakes:

Assuming IN parameters can return values
Confusing OUT as input parameter
Thinking IN parameters can be modified directly

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More SQL Quizzes

You want to create a stored procedure that accepts a number, doubles it, and returns the doubled value using parameters. Which parameter mode should you use and why?

Step 1: Understand parameter modes

Step 2: Requirement analysis

Step 3: Choose correct mode

Final Answer:

Quick Check:

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