Mysql(版本8.0.25)中表student_table(id,name,birth,sex),插入如下记录: (‘1004’ , ‘张三’ , ‘2000-08-06’ , ‘男’); (‘1005’ , NULL , ‘2001-12-01’ , ‘女’); (‘1006’ , ‘张三’ , ‘2000-08-06’ , ‘女’); (‘1007’ , ‘王五’ , ‘2001-12-01’ , ‘男’); (‘1008’ , ‘李四’ , NULL, ‘女’); (‘1009’ , ‘李四’ , NULL, ‘男’); (‘1010’ , ‘李四’ , ‘2001-12-01’, ‘女’); 执行 select t1.*,t2.* from ( select * from student_table where sex = ‘男’ ) t1  full  join  (select * from student_table where sex = ‘女’) t2  on t1.birth = t2.birth and t1.name = t2.name ;  的结果行数是()?-笔试面试资料

这是qklbishe.com第19285 篇笔试面试资料
提供答案分析,通过本文《Mysql(版本8.0.25)中表student_table(id,name,birth,sex),插入如下记录: (‘1004’ , ‘张三’ , ‘2000-08-06’ , ‘男’);
(‘1005’ , NULL , ‘2001-12-01’ , ‘女’);
(‘1006’ , ‘张三’ , ‘2000-08-06’ , ‘女’); (‘1007’ , ‘王五’ , ‘2001-12-01’ , ‘男’);
(‘1008’ , ‘李四’ , NULL, ‘女’);
(‘1009’ , ‘李四’ , NULL, ‘男’); (‘1010’ , ‘李四’ , ‘2001-12-01’, ‘女’); 执行 select t1.*,t2.*
from (
select * from student_table where sex = ‘男’ ) t1 
full  join 
(select * from student_table where sex = ‘女’) t2 
on t1.birth = t2.birth and t1.name = t2.name ; 
的结果行数是()?-笔试面试资料》可以理解其中的代码原理,这是一篇很好的求职学习资料
本站提供程序员计算机面试经验学习,笔试经验,包括字节跳动/头条,腾讯,阿里,美团,滴滴出行,网易,百度,京东,小米,华为,微软等互联网大厂真题学习背诵。

答案:

Mysql(版本8.0.25)中表student_table(id,name,birth,sex),插入如下记录:
(‘1004’ , ‘张三’ , ‘2000-08-06’ , ‘男’);
(‘1005’ , NULL , ‘2001-12-01’ , ‘女’);
(‘1006’ , ‘张三’ , ‘2000-08-06’ , ‘女’);
(‘1007’ , ‘王五’ , ‘2001-12-01’ , ‘男’);
(‘1008’ , ‘李四’ , NULL, ‘女’);
(‘1009’ , ‘李四’ , NULL, ‘男’);
(‘1010’ , ‘李四’ , ‘2001-12-01’, ‘女’);

执行

select t1.*,t2.*
from (
select * from student_table where sex = ‘男’ ) t1 
full  join 
(select * from student_table where sex = ‘女’) t2 
on t1.birth = t2.birth and t1.name = t2.name ; 
的结果行数是()?
Mysql(版本8.0.25)中表student_table(id,name,birth,sex),插入如下记录:       ('1004' , '张三' , '2000-08-06' , '男');   ('1005' , NULL , '2001-12-01' , '女');         ('1006' , '张三' , '2000-08-06' , '女');           ('1007' , ‘王五’ , '2001-12-01' , '男');            ('1008' , '李四' , NULL, '女');            ('1009' , '李四' , NULL, '男');          ('1010' , '李四' , '2001-12-01', '女');      执行    select t1.*,t2.*   from (   select * from student_table where sex = '男' ) t1    full  join    (select * from student_table where sex = '女') t2    on t1.birth = t2.birth and t1.name = t2.name ;    的结果行数是()? kkkyzp
不会是王五的那个单引号吧?

今天 19:19:07 回复(0)

文章部分来自互联网,侵权联系删除
www.qklbishe.com

区块链毕设网(www.qklbishe.com)全网最靠谱的原创区块链毕设代做网站
部分资料来自网络,侵权联系删除!
资源收费仅为搬运整理打赏费用,用户自愿支付 !
qklbishe.com区块链毕设代做网专注|以太坊fabric-计算机|java|毕业设计|代做平台 » Mysql(版本8.0.25)中表student_table(id,name,birth,sex),插入如下记录: (‘1004’ , ‘张三’ , ‘2000-08-06’ , ‘男’); (‘1005’ , NULL , ‘2001-12-01’ , ‘女’); (‘1006’ , ‘张三’ , ‘2000-08-06’ , ‘女’); (‘1007’ , ‘王五’ , ‘2001-12-01’ , ‘男’); (‘1008’ , ‘李四’ , NULL, ‘女’); (‘1009’ , ‘李四’ , NULL, ‘男’); (‘1010’ , ‘李四’ , ‘2001-12-01’, ‘女’); 执行 select t1.*,t2.* from ( select * from student_table where sex = ‘男’ ) t1  full  join  (select * from student_table where sex = ‘女’) t2  on t1.birth = t2.birth and t1.name = t2.name ;  的结果行数是()?-笔试面试资料

提供最优质的资源集合

立即查看 了解详情