如何在 MySQL 中创建一个以 auto_increment 开头的 INT 字段(不是主键)?
mysqlmysqli database更新于 2025/10/18 15:08:17
为此，您需要将 AUTO_INCREMENT 设置为 1000 −
alter table yourTableName AUTO_INCREMENT = 1000;
首先我们创建一个表 −
mysql> create table DemoTable639 ( StudentId int PRIMARY KEY, StudentStartId int AUTO_INCREMENT, StudentName VARCHAR(50), INDEX(StudentStartId) ); Query OK, 0 rows affected (0.86 sec)
以下是设置自动增量为 1000 的查询 −
mysql> alter table DemoTable639 AUTO_INCREMENT = 1000; Query OK, 0 rows affected (0.28 sec) Records: 0 Duplicates: 0 Warnings: 0
使用 insert 命令在表中插入一些记录 −
mysql> insert into DemoTable639(StudentId,StudentName) values(1,'John'); Query OK, 1 row affected (0.17 sec) mysql> insert into DemoTable639(StudentId,StudentName) values(2,'Chris'); Query OK, 1 row affected (0.17 sec) mysql> insert into DemoTable639(StudentId,StudentName) values(3,'Robert'); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable639(StudentId,StudentName) values(4,'David'); Query OK, 1 row affected (0.16 sec)
使用 select 语句显示表中的所有记录 −
mysql> select *from DemoTable639;
这将产生以下输出 −
+-----------+----------------+-------------+ | StudentId | StudentStartId | StudentName | +-----------+----------------+-------------+ | 1 | 1000 | John | | 2 | 1001 | Chris | | 3 | 1002 | Robert | | 4 | 1003 | David | +-----------+----------------+-------------+ 4 rows in set (0.00 sec)
相关文章
有用资源
mysql 参考教程 - 该教程包含有关 mysql 的更多信息:https://www.cainiaomax.com/mysql/
