Multiple choice technology databases

Which type of argument passes a value from a calling environment?

  1. VARCHAR2.

  2. BOOLEAN.

  3. OUT.

  4. IN.

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

IN is the parameter mode that passes a value FROM the calling environment INTO the procedure. It's read-only within the procedure. OUT passes values from procedure back to caller. IN OUT allows both directions. VARCHAR2 and BOOLEAN are data types, not parameter modes.