如何使用 MySQL 查询从列值中仅删除第一个单词?
mysqlmysqli database更新于 2025/12/10 3:56:17
要从列值中仅删除第一个单词，请使用 substring()。以下是语法 −
select substring(yourColumnName,locate(' ',yourColumnName)+1) AS anyAliasName from yourTableName;
首先我们创建一个表 −
mysql> create table DemoTable ( Title text ); Query OK, 0 rows affected (0.50 sec)
使用 insert 命令在表中插入一些记录 −
mysql> insert into DemoTable values('Java in Depth');
Query OK, 1 row affected (0.49 sec)
mysql> insert into DemoTable values('C++ is an object oriented programming language');
Query OK, 1 row affected (0.47 sec)
mysql> insert into DemoTable values('MySQL is a relational database');
Query OK, 1 row affected (0.17 sec)
mysql> insert into DemoTable values('Python with data structure');
Query OK, 1 row affected (0.24 sec)
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)
相关文章
有用资源
mysql 参考教程 - 该教程包含有关 mysql 的更多信息:https://www.cainiaomax.com/mysql/
