#Include
#define DLLEXPORT __declspec(dllexport) __cdecl
int DLLEXPORT c_func (OCIExtProcContext *ctx, OCILobLocator *lobl);
int c_func (OCIExtProcContext *ctx, OCILobLocator *lobl)
{
/*Place function code here */
return 0;
}
The external callout can be tested using PL/SQL:
declare
i binary_integer;
x ext_objtype;
begin
x := ext_objtype(EMPTY_CLOB());
i := x.ext_objtype_func();
DBMS_OUTPUT.PUT_LINE('ext_objtype_func() returned ' || i);
end;