[{ PCTFREE integer) 
 | PCTUSED integer
 | INITRANS integer
 | MAXTRANS integer
 | storage_clause
 } 
 [ PCTFREE integer) 
 | PCTUSED integer
 | INITRANS integer
 | MAXTRANS integer
 | storage_clause
 ]...
]

For information on the symbols and conventions of Backus-Naur Form (BNF) syntax, see Appendix A.