MySQL查询以选择具有名称记录的列中最后一个空格左侧的所有内容
为此，您可以使用LEFT()。让我们首先创建一个表-
mysql> create table DemoTable1939 ( FullName varchar(20) );
使用插入命令在表中插入一些记录-
mysql> insert into DemoTable1939 values('Adam Smith');
mysql> insert into DemoTable1939 values('Robert Downey, Jr.');
mysql> insert into DemoTable1939 values('Sylvester Stallone');
mysql> insert into DemoTable1939 values('Chris Hemsworth');使用select语句显示表中的所有记录-
mysql> select * from DemoTable1939;
这将产生以下输出-
+--------------------+ | FullName | +--------------------+ | Adam Smith | | Robert Downey, Jr. | | Sylvester Stallone | | Chris Hemsworth | +--------------------+ 4 rows in set (0.00 sec)
这是查询以选择最后一个空格左侧的所有内容
mysql> select
LEFT(FullName, LENGTH(FullName) - LOCATE(' ', REVERSE(FullName))+1)
from DemoTable1939;这将产生以下输出-
+---------------------------------------------------------------------+
| LEFT(FullName, LENGTH(FullName) - LOCATE(' ', REVERSE(FullName))+1) |
+---------------------------------------------------------------------+
| Adam |
| Robert Downey, |
| Sylvester |
| Chris |
+---------------------------------------------------------------------+
4 rows in set (0.00 sec)