MySQL 如何从列中选择前20个字符之后的所有字符

让我们首先创建一个表 –

mysql> create table DemoTable
(
   Title text
);
Query OK, 0 rows affected (0.86 sec)

使用插入命令向表中插入一些记录-

mysql> insert into DemoTable values('C is a good programming language to start');
Query OK, 1 row affected (0.18 sec)
mysql> insert into DemoTable values('Java is good with data structure and algorithm');
Query OK, 1 row affected (0.19 sec)
mysql> insert into DemoTable values('Coding is very important');
Query OK, 1 row affected (0.20 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                                          |
+------------------------------------------------+
| C is a good programming language to start      |
| Java is good with data structure and algorithm |
| Coding is very important                      |
+------------------------------------------------+
3 rows in set (0.00 sec)

以下是选择前20个字符之后的所有字符的查询 –

mysql> select substring(Title from 20) from DemoTable;

这将产生以下输出 –

+-----------------------------+
| substring(Title from 20)   |
+-----------------------------+
| ming language to start      |
| ata structure and algorithm |
| rtant                       |
+-----------------------------+
3 rows in set (0.00 sec)

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