create table myTestTable as
select rownum as id,
to_char(sysdate + rownum/24/3600, 'yyyy-mm-dd hh24:mi:ss') as inc_datetime,
trunc(dbms_random.value(0, 100)) as random_id,
dbms_random.string('x', 20) random_string
from dual
connect by level <= 1000000;
- 通过level控制数据量,表名随意,直接运行即可创造百万数据,耗时半分钟左右
- 转载自:https://blog.youkuaiyun.com/yzsind/article/details/4967133