select level||'주',
decode(level,1,'**') A1,
decode(level,1,'**',2,'**') A2,
decode(level,2,'**',3,'**') A3,
decode(level,3,'**',4,'**') A4,
decode(level,4,'**',5,'**') A5,
decode(level,5,'**',6,'**') A6,
decode(level,6,'**',7,'**') A7,
decode(level,7,'**',8,'**') A8,
decode(level,8,'**',9,'**') A9,
decode(level,9,'**',10,'**') A10,
decode(level,10,'**',11,'**') A11,
decode(level,11,'**') A12 from dual
connect by level <= 11