What are the modes of parameters that can be passed to a
procedure ?

Answer Posted / krupakar

Three Types of Parameters.
1) IN parameter mode- This mode is used to pass values to
the calling module when invoked.The value of IN parameter
can't be changed in the module.

2) OUT parameter mode -This mode is used to return a value
to the main block.The value of OUT parameter can change
anywhere in the program.

3)IN OUT parameter mode-This mode is used to pass values to
the calling module and return a value to the main block.The
value of IN OUT parameter can change anywhere in the
program.

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