MySql如何在表中显示具有最新ID的记录？
让我们首先创建一个表-
mysql> create table DemoTable676( Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, Number int );
使用插入命令在表中插入一些记录-
mysql> insert into DemoTable676(Number) values(1000); mysql> insert into DemoTable676(Number) values(1839); mysql> insert into DemoTable676(Number) values(29894); mysql> insert into DemoTable676(Number) values(1264); mysql> insert into DemoTable676(Number) values(190); mysql> insert into DemoTable676(Number) values(167);
使用select语句显示表中的所有记录-
mysql> select *from DemoTable676;
这将产生以下输出-
+----+--------+ | Id | Number | +----+--------+ | 1 | 1000 | | 2 | 1839 | | 3 | 29894 | | 4 | 1264 | | 5 | 190 | | 6 | 167 | +----+--------+ 6 rows in set (0.00 sec)
以下是查询以在表中显示具有最新ID号的记录-
mysql> select *from DemoTable676 order by Id DESC LIMIT 1;
这将产生以下输出-
+----+--------+ | Id | Number | +----+--------+ | 6 | 167 | +----+--------+ 1 row in set (0.00 sec)