A value indicating whether the parameter is input-only, output-only, bidirectional,
or a stored procedure return value parameter.
Syntax
ParameterDirection Direction
Usage
If the ParameterDirection is output, and execution of the associated
AseCommand does not return a value, the AseParameter contains a null
value. After the last row from the last result set is read, Output, InputOut, and
ReturnValue parameters are updated.