
create table t1 (
  category int,
  bank int,
  department int,
  index (category, bank, department)
);

insert into t1 
  select A.seq, B.seq, C.seq
from 
  seq_1_to_10 A,
  seq_1_to_10 B,
  seq_1_to_10 C
;

create table t2 ( pk int primary key);
insert into t2 values (1);
