ALTER TABLE command

I have the following table:

db2 => describe table account

                                Data type                     Column
Column name                     schema    Data type name      Length     Scale N
ulls
------------------------------- --------- ------------------- ---------- ----- -
-----
ACCT                            SYSIBM    CHARACTER                   10     0 N
o
BALANCE                         SYSIBM    DECIMAL                      5     0 N
o

Select allOpen in new window

What command would I use to alter that table such that the BALANCE value has a length of 5 and a scale of 2 ?

Thanks