Mysql中表student_table(id,name,birth,sex),插入如下记录: (‘1004’ , ‘张三’ ,’2000-08-06′ , ‘男’); (‘1009’ , ‘李四’, ‘2000-01-01’, ‘男’); (‘1010’ , ‘李四’, ‘2001-01-01’, ‘男’); (‘1006’ , ‘王五’, ‘2000-08-06’ , ‘女’); (‘1008’ , ‘张三’, ‘2002-12-01’, ‘女’); (‘1012’ , ‘张三’, ‘2001-12-01’, ‘女’); (‘1011’ , ‘李四’, ‘2002-08-06’ , ‘女’); 执行 select t1.*,t2.* from ( select * from student_table where sex = ‘男’ ) t1  right join  (select * from student_table where sex = ‘女’)t2  on  t1.name = t2.name ;  的结果行数是()?-笔试面试资料

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提供答案分析,通过本文《Mysql中表student_table(id,name,birth,sex),插入如下记录: (‘1004’ , ‘张三’ ,’2000-08-06′ , ‘男’);
(‘1009’ , ‘李四’, ‘2000-01-01’, ‘男’);
(‘1010’ , ‘李四’, ‘2001-01-01’, ‘男’);
(‘1006’ , ‘王五’, ‘2000-08-06’ , ‘女’);
(‘1008’ , ‘张三’, ‘2002-12-01’, ‘女’);
(‘1012’ , ‘张三’, ‘2001-12-01’, ‘女’);
(‘1011’ , ‘李四’, ‘2002-08-06’ , ‘女’); 执行 select t1.*,t2.*
from (
select * from student_table where sex = ‘男’ ) t1 
right join 
(select * from student_table where sex = ‘女’)t2 
on  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
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答案:

Mysql中表student_table(id,name,birth,sex),插入如下记录:
(‘1004’ , ‘张三’ ,’2000-08-06′ , ‘男’);
(‘1009’ , ‘李四’, ‘2000-01-01’, ‘男’);
(‘1010’ , ‘李四’, ‘2001-01-01’, ‘男’);
(‘1006’ , ‘王五’, ‘2000-08-06’ , ‘女’);
(‘1008’ , ‘张三’, ‘2002-12-01’, ‘女’);
(‘1012’ , ‘张三’, ‘2001-12-01’, ‘女’);
(‘1011’ , ‘李四’, ‘2002-08-06’ , ‘女’);

执行

select t1.*,t2.*
from (
select * from student_table where sex = ‘男’ ) t1 
right join 
(select * from student_table where sex = ‘女’)t2 
on  t1.name = t2.name ; 
的结果行数是()?
Mysql中表student_table(id,name,birth,sex),插入如下记录:       ('1004' , '张三' ,'2000-08-06' , '男');   ('1009' , '李四', '2000-01-01', '男');   ('1010' , '李四', '2001-01-01', '男');   ('1006' , '王五', '2000-08-06' , '女');   ('1008' , '张三', '2002-12-01', '女');   ('1012' , '张三', '2001-12-01', '女');   ('1011' , '李四', '2002-08-06' , '女');                   执行    select t1.*,t2.*   from (   select * from student_table where sex = '男' ) t1    right join    (select * from student_table where sex = '女')t2    on  t1.name = t2.name ;    的结果行数是()? MorrisonLin
右连接,所以包括王五
今天 01:12:01 回复(0)
Mysql中表student_table(id,name,birth,sex),插入如下记录:       ('1004' , '张三' ,'2000-08-06' , '男');   ('1009' , '李四', '2000-01-01', '男');   ('1010' , '李四', '2001-01-01', '男');   ('1006' , '王五', '2000-08-06' , '女');   ('1008' , '张三', '2002-12-01', '女');   ('1012' , '张三', '2001-12-01', '女');   ('1011' , '李四', '2002-08-06' , '女');                   执行    select t1.*,t2.*   from (   select * from student_table where sex = '男' ) t1    right join    (select * from student_table where sex = '女')t2    on  t1.name = t2.name ;    的结果行数是()? 区块链毕设学生184596115号
2021-12-15 16:25:12 回复(0)

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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中表student_table(id,name,birth,sex),插入如下记录: (‘1004’ , ‘张三’ ,’2000-08-06′ , ‘男’); (‘1009’ , ‘李四’, ‘2000-01-01’, ‘男’); (‘1010’ , ‘李四’, ‘2001-01-01’, ‘男’); (‘1006’ , ‘王五’, ‘2000-08-06’ , ‘女’); (‘1008’ , ‘张三’, ‘2002-12-01’, ‘女’); (‘1012’ , ‘张三’, ‘2001-12-01’, ‘女’); (‘1011’ , ‘李四’, ‘2002-08-06’ , ‘女’); 执行 select t1.*,t2.* from ( select * from student_table where sex = ‘男’ ) t1  right join  (select * from student_table where sex = ‘女’)t2  on  t1.name = t2.name ;  的结果行数是()?-笔试面试资料

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