--该表保存结果
create table c(c1 tinyint, c2 tinyint, c3 tinyint, c4 tinyint, c5 tinyint, c6 tinyint, c7 tinyint, c8 tinyint, c9 tinyint, c10 tinyint, c11 tinyint, c12 tinyint, c13 tinyint, c14 tinyint, c15 tinyint, c16 tinyint, c17 tinyint, c18 tinyint, c19 tinyint, c20 tinyint, c21 tinyint, c22 tinyint, c23 tinyint, c24 tinyint, c25 tinyint, c26 tinyint, c27 tinyint, c28 tinyint, c29 tinyint, c30 tinyint, c31 tinyint, c32 tinyint, c33 tinyint, c34 tinyint, c35 tinyint, c36 tinyint, c37 tinyint, c38 tinyint, c39 tinyint, c40 tinyint, c41 tinyint, c42 tinyint, c43 tinyint, c44 tinyint, c45 tinyint, c46 tinyint, c47 tinyint, c48 tinyint, c49 tinyint, c50 tinyint, c51 tinyint, c52 tinyint, c53 tinyint, c54 tinyint, c55 tinyint, c56 tinyint, c57 tinyint, c58 tinyint, c59 tinyint, c60 tinyint, c61 tinyint, c62 tinyint, c63 tinyint, c64 tinyint)
--该表做笛卡尔积
create table tb(t tinyint)
insert into tb
select 1 union
select 0
--将tb表做64次笛卡尔积，产生所有的可能类型
--根据估算，一共有2的64次方种可能，每一种可能在表c中用64个tinyint型的字段保存
--无法保存所有的可能（大约134217728T）
--一下语句先做迪卡积，然后从结果中筛选
insert into c
select * from
(
select tb1.t c1 ,tb2.t c2 ,tb3.t c3 ,tb4.t c4 ,tb5.t c5 ,tb6.t c6 ,tb7.t c7 ,tb8.t c8 ,tb9.t c9 ,tb10.t c10,tb11.t c11,tb12.t c12,tb13.t c13,tb14.t c14,tb15.t c15,tb16.t c16,tb17.t c17,tb18.t c18,tb19.t c19,tb20.t c20,tb21.t c21,tb22.t c22,tb23.t c23,tb24.t c24,tb25.t c25,tb26.t c26,tb27.t c27,tb28.t c28,tb29.t c29,tb30.t c30,tb31.t c31,tb32.t c32,tb33.t c33,tb34.t c34,tb35.t c35,tb36.t c36,tb37.t c37,tb38.t c38,tb39.t c39,tb40.t c40,tb41.t c41,tb42.t c42,tb43.t c43,tb44.t c44,tb45.t c45,tb46.t c46,tb47.t c47,tb48.t c48,tb49.t c49,tb50.t c50,tb51.t c51,tb52.t c52,tb53.t c53,tb54.t c54,tb55.t c55,tb56.t c56,tb57.t c57,tb58.t c58,tb59.t c59,tb60.t c60,tb61.t c61,tb62.t c62,tb63.t c63,tb64.t c64
from
tb tb1 cross join tb tb2 cross join tb tb3 cross join tb tb4 cross join tb tb5 cross join tb tb6 cross jo
