Oracle: What are actual and formal parameters?

Question

Oracle: What all important parameters of the init.ora are supposed to be increased if you want to increase the SGA size?

Answer 1

Actual Parameters : Subprograms pass information using parameters. The variables or expressions referenced in the parameter list of a subprogram call are actual parameters. For example, the following procedure call lists two actual parameters named emp_num and amount:
Eg. raise_salary(emp_num, amount);

Formal Parameters : The variables declared in a subprogram specification and referenced in the subprogram body are formal parameters. For example, the following procedure declares two formal parameters named emp_id and increase:
Eg. PROCEDURE raise_salary (emp_id INTEGER, increase REAL) IS current_salary REAL;