insert into
TB_TEST2
select
to_char(rownum) c_id,
sysdate + rownum / 24 / 3600 c_date,
dbms_random.string('x', 20) c_string,
trunc(dbms_random.value(0, 10000000)) c_amount,
sys_guid() c_guid,
to_char(trunc(dbms_random.value(0, 2))) as c_type
from
dual connect by level <= 1000;
