oracle中从一张表中筛选出不再多个时间段内的时间

Posted 2023-03-25

一张表存储 假期 开始时间strat_time 结束时间 end_time，这张表中存储有多条记录
另一张表存储正常的时间work_time

如何从存储正常时间的的表中筛选出不再另一张表包含的时间段内的时间

建表和插入数据 
create table table_a( t1 date, t2 date);

insert into table_a values(to_date('20140501','yyyymmdd') ,to_date('20140503','yyyymmdd'));

insert into table_a values(to_date('20140508','yyyymmdd') ,to_date('20140509','yyyymmdd'));

create table table_b(t date,id int)
insert into table_b values(to_date('20140501','yyyymmdd'),1);
insert into table_b values(to_date('20140502','yyyymmdd'),2);
insert into table_b values(to_date('20140503','yyyymmdd'),3);
insert into table_b values(to_date('20140504','yyyymmdd'),4);
insert into table_b values(to_date('20140505','yyyymmdd'),5);
insert into table_b values(to_date('20140506','yyyymmdd'),6);
insert into table_b values(to_date('20140507','yyyymmdd'),7);
insert into table_b values(to_date('20140508','yyyymmdd'),8);
insert into table_b values(to_date('20140509','yyyymmdd'),9);
insert into table_b values(to_date('20140510','yyyymmdd'),10);
insert into table_b values(to_date('20140511','yyyymmdd'),11);


查询语句 

select * from table_b where t not in(
select distinct b.t from table_b b,table_a a where b.t  between a.t1 and a.t2)

参考技术A oracle中从一张表中筛选出不再多个时间段内的时间
建表和插入数据
create table table_a( t1 date, t2 date);

insert into table_a values(to_date('20140501','yyyymmdd') ,to_date('20140503','yyyymmdd'));

insert into table_a values(to_date('20140508','yyyymmdd') ,to_date('20140509','yyyymmdd'));

create table table_b(t date,id int)
insert into table_b values(to_date('20140501','yyyymmdd'),1);
insert into table_b values(to_date('20140502','yyyymmdd'),2);
insert into table_b values(to_date('20140503','yyyymmdd'),3);
insert into table_b values(to_date('20140504','yyyymmdd'),4);
insert into table_b values(to_date('20140505','yyyymmdd'),5);
insert into table_b values(to_date('20140506','yyyymmdd'),6);
insert into table_b values(to_date('20140507','yyyymmdd'),7);
insert into table_b values(to_date('20140508','yyyymmdd'),8);
insert into table_b values(to_date('20140509','yyyymmdd'),9);
insert into table_b values(to_date('20140510','yyyymmdd'),10);
insert into table_b values(to_date('20140511','yyyymmdd'),11);

查询语句

select * from table_b where t not in(
select distinct b.t from table_b b,table_a a where b.t between a.t1 and a.t2)