#include <db_cxx.h> int DbEnv::fileid_reset(const char *file, u_int32_t flags);
         The DbEnv::fileid_reset() method allows database files to be copied,
         and then the copy used in the same database environment as the
         original.
    
         All databases contain an ID string used to identify the database in
         the database environment cache.  If a physical database file is
         copied, and used in the same environment as another file with the same
         ID strings, corruption can occur.  The DbEnv::fileid_reset() method
         creates new ID strings for all of the databases in the physical file.
    
         The DbEnv::fileid_reset() method modifies the physical file,
         in-place. Applications should not reset IDs in files that are
         currently in use.
    
         The DbEnv::fileid_reset() method may be called at any time during
         the life of the application.
    
         The DbEnv::fileid_reset() 
            
            
                method either returns a non-zero error value or throws an
                exception that encapsulates a non-zero error value on
                failure, and returns 0 on success.
            
        
    
                         The DbEnv::fileid_reset() 
            
            
                method may fail and throw a DbException 
                exception, encapsulating one of the following non-zero errors, or return one
                of the following non-zero errors: