1.sql数据处理问题
发布时间:2022-07-03 11:25 所属栏目:115 来源:互联网
导读:查询出每门课都大于 80 分的学生姓名 create table test2( id int not null auto_increment, name varchar(10), kecheng varchar(10), fenshu int, primary key(id) ) insert into test2(name,kecheng,fenshu) values(张三,语文,81 ); insert into test2(nam
查询出每门课都大于 80 分的学生姓名 create table test2( id int not null auto_increment, name varchar(10), kecheng varchar(10), fenshu int, primary key(id) ) insert into test2(name,kecheng,fenshu) values('张三','语文',81 ); insert into test2(name,kecheng,fenshu) values('张三','数学',75 ); insert into test2(name,kecheng,fenshu) values('李四','语文',76 ); insert into test2(name,kecheng,fenshu) values('李四','数学',90 ); insert into test2(name,kecheng,fenshu) values('王五','语文',81 ); insert into test2(name,kecheng,fenshu) values('王五','数学',100); insert into test2(name,kecheng,fenshu) values('王五','英语',90 ); -- (1) select name from test2 group by name having min(fenshu) > 80; 王五 -- (2) select distinct name from test2 where name not in (select distinct name from test2 where fenshu<=80) (编辑:ASP站长网) |
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