How many byte NUMER(19) take?

Hi Everyone,

   Do you know how to calculate
   what is the size of the following record?

   For example, number(19) is how many byte???

   I know there is a VSIZE command in sqlplus.    But I would like to calculate if the whole record is FULLY used.

   Like field_10 is VARCHAR2(1024), I will assume is actually filled with    1024 character.

Thank you in advance,

Please email me directly to dominica_l_at_yahoo.com

after underline is a lowercase L, not a ONE.

Dominica Leung

   a table

 FIELD_1        NOT NULL NUMBER(19)
 FIELD_2        NOT NULL NUMBER(19)
 FIELD_3        NOT NULL DATE
 FIELD_4        DATE
 FIELD_5        DATE
 FIELD_6        DATE
 FIELD_7        DATE
 FIELD_8        NUMBER(19)
 FIELD_9        NUNBER(2)
 FIELD_10       VARCHAR2(1024)