MySQL筆記之根本查詢的運用詳解。本站提示廣大學習愛好者：（MySQL筆記之根本查詢的運用詳解）文章只能為提供參考，不一定能成為您想要的結果。以下是MySQL筆記之根本查詢的運用詳解正文
參考表：student
多字段查詢
mysql> select id,name,birth from student;
一切字段查詢
mysql> select * from student;
where指定查詢
mysql> select * from student where id=901;
mysql> select * from student where id>=904;
mysql> select name from student where department='盤算機系';
in指定聚集查詢
mysql> select * from student where birth in(1988,1990);
mysql> select * from student where id in(903,906);
not in非規模查詢
mysql> select * from student where birth not in(1990,1998);
between and指定規模查詢
mysql> select * from student where birth between 1986 and 1988;
not between and不在指定規模的查詢
mysql> select * from student where id not between 904 and 906;
like字符串婚配查詢
mysql> select * from student where name like '_三';
mysql> select * from student where name like '張三';
mysql> select * from student where name like '張%';
not like不婚配查詢
mysql> select * from student where name not like '張%';
null查詢
mysql> select * from student where address is null;
and多前提查詢
mysql> select * from student where name like '張%' and birth>1985;
mysql> select * from student where name like '張%' and birth>1985 and id like '%3';
or多前提查詢
mysql> select * from student where id=905 or birth=1988;
mysql> select * from student where id=905 or birth=1988 or sex='女';
distinct查詢成果不反復
mysql> select distinct sex from student;
mysql> select distinct department from student;
order by查詢成果排序
mysql> select * from student order by birth;
mysql> select * from student order by birth asc;
mysql> select * from student order by birth desc;
group by分組查詢
mysql> select sex,group_concat(name) from student group by sex;
mysql> select sex,count(name) from student group by sex;
正則表達式查詢
mysql> select * from student where birth regexp '1988|1990';
limit限制查詢成果數目
mysql> select * from student limit 2;
mysql> select * from student limit 1,3;
