URGENT - USER as Default in CREATE TABLE

[mcl]

HI,

I'm getting error when I try to create a table with USER as
the default.
i.e create table test (col1 varchar2(18) default USER);

ERROR at line 1:
ORA-01401: inserted value too large for column


if I expand col1 to varchar2(30) then I won't have this problem. Does this means the length of USER is 30?

Can anyone confirm that the default size for USER is 30.


Thanks

MCL

[akkerend]

Usernames can be from 1 to 30 characters long, size of col1 must be at least 30 and there is reason to make it larger.