data_type 

<data_type> ::=
  CHAR[ACTER] [(<unsigned_integer>)] [ASCII | BYTE | UNICODE]
| VARCHAR [(<unsigned_integer>)] [ASCII | BYTE | UNICODE]
| LONG [VARCHAR] [ASCII | BYTE | UNICODE]
| BOOLEAN
| FIXED (<unsigned_integer> [,<unsigned_integer>])
| FLOAT (<unsigned_integer>)
| INT[EGER]
| SMALLINT
| DATE
| TIME
| TIMESTAMP