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如何在MySQL中删除值大于特定值的字段？

2024-04-27 05:12:03 407

让我们首先创建一个表-

mysql> create table DemoTable
(
   Id int NOT NULL AUTO_INCREMENT PRIMARY KEY,
   PlayerName varchar(100),
   PlayerScore int
);

使用插入命令在表中插入一些记录-

mysql> insert into DemoTable(PlayerName,PlayerScore) values('Chris',780);
mysql> insert into DemoTable(PlayerName,PlayerScore) values('Sam',1100);
mysql> insert into DemoTable(PlayerName,PlayerScore) values('Mike',900);
mysql> insert into DemoTable(PlayerName,PlayerScore) values('Bob',890);
mysql> insert into DemoTable(PlayerName,PlayerScore) values('Carol',1000);

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-

+----+------------+-------------+
| Id | PlayerName | PlayerScore |
+----+------------+-------------+
|  1 | Chris      |         780 |
|  2 | Sam        |        1100 |
|  3 | Mike       |         900 |
|  4 | Bob        |         890 |
|  5 | Carol      |        1000 |
+----+------------+-------------+
5 rows in set (0.00 sec)

以下是删除值大于MySQL中特定值的字段的查询-

mysql> delete from DemoTable where PlayerScore > 900;

让我们再次检查表记录。

mysql> select *from DemoTable;

这将产生以下输出-

+----+------------+-------------+
| Id | PlayerName | PlayerScore |
+----+------------+-------------+
|  1 | Chris      |         780 |
|  3 | Mike       |         900 |
|  4 | Bob        |         890 |
+----+------------+-------------+
3 rows in set (0.00 sec)

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如何在MySQL中删除值大于特定值的字段？

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