is that number datatype encryption is possible in oracle

i am trying to encrypt the number datatype in oracle but i am not able to find the solution for that.please tell me the solution for me
Vijaykumar vAsked:
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btanExec ConsultantCommented:
possibly, pls see
TDE encryption can be performed over a set of datatypes and the size of the column to be encrypted must not exceed the maximum size defined below.
 
·         BINARY_DOUBLE
·         BINARY_FLOAT
·         CHAR (Maximum Size: 1932 bytes)
·         DATE
·         INTERVAL DAY TO SECOND
·         INTERVAL YEAR TO MONTH
·         NCHAR (Maximum Size: 966 bytes)
·         NUMBER
·         NVARCHAR2 (Maximum Size: 16,315 bytes)
·         RAW (Maximum Size: 32,699 bytes)
·         TIMESTAMP (Includes TIMESTAMP WITH LOCAL TIME ZONE and TIMESTAMP WITH TIME ZONE)
·         VARCHAR2 (Maximum Size: 32,699 bytes)
http://www.dba-oracle.com/t_adv_plsql_tde_column_encryption.htm
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btanExec ConsultantCommented:
For consideration
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