MySQL 中的 ORDERBY 单词?
mysqlmysqli database更新于 2025/6/30 13:00:17
要在 MySQL 中按单词排序，需要使用 ORDER BY FIELD()。我们首先创建一个表。 −
mysql> create table DemoTable ( StudentId int NOT NULL AUTO_INCREMENT PRIMARY KEY, StudentFirstName varchar(20), StudentFavouriteSubject varchar(100) ); Query OK, 0 rows affected (0.52 sec)
使用 insert 命令在表中插入一些记录 −
mysql> insert into DemoTable(StudentFirstName,StudentFavouriteSubject) values('Larry','Java');
Query OK, 1 row affected (0.12 sec)
mysql> insert into DemoTable(StudentFirstName,StudentFavouriteSubject) values('Sam','C');
Query OK, 1 row affected (0.11 sec)
mysql> insert into DemoTable(StudentFirstName,StudentFavouriteSubject) values('Bob','MongoDB');
Query OK, 1 row affected (0.17 sec)
mysql> insert into DemoTable(StudentFirstName,StudentFavouriteSubject) values('David','MySQL');
Query OK, 1 row affected (0.17 sec)
使用 select 语句显示表中的所有记录
mysql> select *from DemoTable;
这将产生以下输出 −
+-----------+------------------+-------------------------+ | StudentId | StudentFirstName | StudentFavouriteSubject | +-----------+------------------+-------------------------+ | 1 | Larry | Java | | 2 | Sam | C | | 3 | Bob | MongoDB | | 4 | David | MySQL | +-----------+------------------+-------------------------+ 4 rows in set (0.00 sec)
以下是 MySQL 中 ORDER BY word 的查询−
mysql> select *from DemoTable ORDER BY FIELD(`StudentFavouriteSubject`, 'MongoDB','MySQL','Java','C');
这将产生以下输出 −
+-----------+------------------+-------------------------+ | StudentId | StudentFirstName | StudentFavouriteSubject | +-----------+------------------+-------------------------+ | 3 | Bob | MongoDB | | 4 | David | MySQL | | 1 | Larry | Java | | 2 | Sam | C | +-----------+------------------+-------------------------+ 4 rows in set (0.03 sec)
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