Parameters in PRO*C functions

Is it safe to use function parameters directly as bind variables in Oracle code?
eg.

	void find_kiddies(emp_name)
	EXEC SQL BEGIN DECLARE SECTION;
	char *emp_name;
	EXEC SQL END DECLARE SECTION;


	{

	EXEC SQL DECLARE kiddies CURSOR FOR
	SELECT children
	FROM emp
	WHERE emp.name=:emp_name;
	...

or must the variable be copied into local storage first?
	void find_kiddies(e)
	char *e;


	{

	EXEC SQL BEGIN DECLARE SECTION
	char emp_name[15];
	EXEC SQL VAR emp_name IS STRING;
	EXEC SQL END DECLARE SECTION
	EXEC SQL DECLARE kiddies CURSOR FOR
	SELECT children
	FROM emp
	WHERE emp.name=:emp_name;
	  strcpy(emp_name, e);
	...

As far as I'm concerned these should be functionally identical, and the first seems cleaner. But, as far as I can tell, the cursor is never rebound should emp_name (the pointer, not the string it points to) change.

Anyone else met this sort of thing?

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< Tommy Wareing X p0070621_at_brookes.ac.uk X 0865-483389 >
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