I don't think you can change the qualifier for
a table. You can create a new table like the old
one with another qualifier. i.e.
create table <newschema>.<tablename> like
<oldschema>.<tablename>
And erase the original one.
The owner(creator) of a table is recorded as the qualifier
at creation time, in sysibm.systables.
You can specify a creator by explicitly qualifying the table,
but I don't think you can change it afterwards
BOW