-473 A USER DEFINED DATA TYPE CANNOT BE CALLED THE SAME NAME AS A SYSTEM PREDEFINED TYPE (BUILT-IN TYPE)

Explanation
  The name of a data
type to be created has an unqualified name that is the same as a system-predefined
data type. The name that you specified is not allowed. Adding delimiters
does not make the name valid. The following names are restricted:  

Restricted names

BIGINT

DECIMAL

REF

BINARY

DECFLOAT

ROWID

BLOB 

DOUBLE

SMALLINT

BOOLEAN

DOUBLE PRECISION

TIME

CHAR

FLOAT

TIMESTAMP

CHAR VARYING

GRAPHIC

VARBINARY

CHARACTER

INT

VARCHAR

CHARACTER VARYING

INTEGER 

VARGRAPHIC

CLOB 

LONG VARCHAR

XML

DATALINK 

LONG VARGRAPHIC

DATE

NUMERIC

DBCLOB 

REAL

DEC

ROWID

System action
  The statement cannot be processed.

Programmer response
  Correct the statement to use another identifier
for the name of the new user-defined type.

SQLSTATE
  42918

Restricted names
BIGINT	DECIMAL	REF
BINARY	DECFLOAT	ROWID
BLOB	DOUBLE	SMALLINT
BOOLEAN	DOUBLE PRECISION	TIME
CHAR	FLOAT	TIMESTAMP
CHAR VARYING	GRAPHIC	VARBINARY
CHARACTER	INT	VARCHAR
CHARACTER VARYING	INTEGER	VARGRAPHIC
CLOB	LONG VARCHAR	XML
DATALINK	LONG VARGRAPHIC
DATE	NUMERIC
DBCLOB	REAL
DEC	ROWID