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如何在MySQL中选择ID最高的行？

2024-04-24 16:23:03 305

您可以在ORDERBY和LIMITOFFSET的帮助下选择MySQL中ID最高的行

语法如下-

select *from yourTableName order by yourColumnName desc limit 1 offset 0;

为了理解上述语法，让我们创建一个表。创建表的查询如下-

mysql> create table HighestIdOrderBy
   −> (
   −> EmployeeId int,
   −> EmployeeName varchar(200)
   −> );

借助insert命令将记录插入表中。查询如下-

mysql> insert into HighestIdOrderBy values(200,'David');

mysql> insert into HighestIdOrderBy values(1000,'Bob');

mysql> insert into HighestIdOrderBy values(600,'John');

mysql> insert into HighestIdOrderBy values(300,'Johnson');

mysql> insert into HighestIdOrderBy values(100,'Carol');

使用select语句显示表中的所有记录。查询如下-

mysql> select *from HighestIdOrderBy;

以下是输出-

+------------+--------------+
| EmployeeId | EmployeeName |
+------------+--------------+
|        200 | David        |
|       1000 | Bob          |
|        600 | John         |
|        300 | Johnson      |
|        100 | Carol       |
+------------+--------------+
5 rows in set (0.00 sec)

这是从MySQL表中选择最大ID的查询。查询如下-

mysql> select *from HighestIdOrderBy order by EmployeeId desc limit 1 offset 0;

以下是输出-

+------------+--------------+
| EmployeeId | EmployeeName |
+------------+--------------+
|       1000 | Bob          |
+------------+--------------+
1 row in set (0.00 sec)

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如何在MySQL中选择ID最高的行？

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