MySQL 如何显示具有最新ID的记录

首先，让我们创建一个表 –

mysql> create table DemoTable676(
   Id int NOT NULL AUTO_INCREMENT PRIMARY KEY,
   Number int
);
Query OK, 0 rows affected (0.50 sec)

使用insert命令将一些记录插入表中 –

mysql> insert into DemoTable676(Number) values(1000);
Query OK, 1 row affected (0.23 sec)
mysql> insert into DemoTable676(Number) values(1839);
Query OK, 1 row affected (0.20 sec)
mysql> insert into DemoTable676(Number) values(29894);
Query OK, 1 row affected (0.30 sec)
mysql> insert into DemoTable676(Number) values(1264);
Query OK, 1 row affected (0.13 sec)
mysql> insert into DemoTable676(Number) values(190);
Query OK, 1 row affected (0.17 sec)
mysql> insert into DemoTable676(Number) values(167);
Query OK, 1 row affected (0.11 sec)

使用select语句显示表中的所有记录 –

mysql> select *from DemoTable676;

这将生成以下输出 –

+----+--------+
| Id | Number |
+----+--------+
|  1 | 1000   |
|  2 | 1839   |
|  3 | 29894  |
|  4 | 1264   |
|  5 | 190    |
|  6 | 167    |
+----+--------+
6 rows in set (0.00 sec)

以下是用于显示具有最新ID号的记录的查询 –

mysql> select *from DemoTable676 order by Id DESC LIMIT 1;

这将生成以下输出 –

+----+--------+
| Id | Number |
+----+--------+
|  6 | 167    |
+----+--------+
1 row in set (0.00 sec)

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