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如何使用MySQL查询从列值中仅删除第一个单词？

2024-05-15 22:12:06 364

要仅从列值中删除第一个单词，请使用substring()。以下是语法-

select substring(yourColumnName,locate(' ',yourColumnName)+1) AS anyAliasName from yourTableName;

让我们首先创建一个表-

mysql> create table DemoTable
(
   Title text
);

使用插入命令在表中插入一些记录-

mysql> insert into DemoTable values('Java in Depth');
mysql> insert into DemoTable values('C++ is an object oriented programming language');
mysql> insert into DemoTable values('MySQL is a relational database');
mysql> insert into DemoTable values('Python with data structure');

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-

+------------------------------------------------+
| Title                                          |
+------------------------------------------------+
| Java in Depth                                  |
| C++ is an object oriented programming language |
| MySQL is a relational database                 |
| Python with data structure                     |
+------------------------------------------------+
4 rows in set (0.00 sec)

以下是从列值中删除第一个单词的查询-

mysql> select substring(Title,locate(' ',Title)+1) AS RemoveFirstWord from DemoTable;

这将产生以下输出-

+--------------------------------------------+
| RemoveFirstWord                            |
+--------------------------------------------+
| in Depth                                   |
| is an object oriented programming language |
| is a relational database                   |
| with data structure                        |
+--------------------------------------------+
4 rows in set (0.00 sec)

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如何使用MySQL查询从列值中仅删除第一个单词？

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