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如何删除带下划线的单词（如MONTH_JAN'）的记录？

2024-05-18 21:18:07 329

为此，您可以使用LIKE运算符。让我们首先创建一个表-

create table DemoTable
(
   Id int NOT NULL AUTO_INCREMENT PRIMARY KEY,
   Name varchar(40),
   BornMonth varchar(40)
);

使用插入命令在表中插入一些记录-

insert into DemoTable(Name,BornMonth) values('Chris','MONTH_DEC');
insert into DemoTable(Name,BornMonth) values('Bob','MONTH_JAN');
insert into DemoTable(Name,BornMonth) values('Mike','MONTH_FEB');
insert into DemoTable(Name,BornMonth) values('David','MONTH_JAN');
insert into DemoTable(Name,BornMonth) values('Carol','MONTH_MARCH');

使用select语句显示表中的所有记录-

select *from DemoTable;

这将产生以下输出-

+----+-------+-------------+
| Id | Name  | BornMonth   |
+----+-------+-------------+
|  1 | Chris | MONTH_DEC   |
|  2 | Bob   | MONTH_JAN   |
|  3 | Mike  | MONTH_FEB   |
|  4 | David | MONTH_JAN   |
|  5 | Carol | MONTH_MARCH |
+----+-------+-------------+
5 rows in set (0.00 sec)

以下是删除基于单词的记录的查询-

delete from DemoTable where BornMonth LIKE '%MONTH_JAN%';

让我们再次检查表记录-

select *from DemoTable;

这将产生以下输出-

+----+-------+-------------+
| Id | Name  | BornMonth   |
+----+-------+-------------+
|  1 | Chris | MONTH_DEC   |
|  3 | Mike  | MONTH_FEB   |
|  5 | Carol | MONTH_MARCH |
+----+-------+-------------+
3 rows in set (0.00 sec)

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如何删除带下划线的单词（如MONTH_JAN'）的记录？

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