仅从MySQL表中的值中删除百分号？
让我们首先创建一个表-
mysql> create table DemoTable828( CustomerName varchar(100), InterestRate varchar(100) );
使用插入命令在表中插入一些记录-
mysql> insert into DemoTable828 values('Chris','10%');
mysql> insert into DemoTable828 values('Robert','11.5%');
mysql> insert into DemoTable828 values('David','15.90%');
mysql> insert into DemoTable828 values('Bob','20%');使用select语句显示表中的所有记录-
mysql> select *from DemoTable828;
这将产生以下输出-
+--------------+--------------+ | CustomerName | InterestRate | +--------------+--------------+ | Chris | 10% | | Robert | 11.5% | | David | 15.90% | | Bob | 20% | +--------------+--------------+ 4 rows in set (0.00 sec)
以下是从MySQL表中的值中删除百分号的查询-
mysql> update DemoTable828 set InterestRate=replace(InterestRate,'%',''); Rows matched: 4 Changed: 4 Warnings: 0
让我们再次检查表记录-
mysql> select *from DemoTable828;
这将产生以下输出-
+--------------+--------------+ | CustomerName | InterestRate | +--------------+--------------+ | Chris | 10 | | Robert | 11.5 | | David | 15.90 | | Bob | 20 | +--------------+--------------+ 4 rows in set (0.00 sec)