mysql - 在SELECT子句中添加/连接文本值

Question

MySQL是否有办法使用SELECT语句将文本连接到值？ （就像在Oracle中一样）

例如，在Oracle中，您可以编写如下内容：

SQL> select 'The Year is '|| year, 'The month is '|| month from time where rownum < 2;

'THEYEARIS'||YEAR
----------------------------------------------------
'THEMONTHIS'||MONTH
-----------------------------------------------------
The Year is 2009
The month is 1

Answer 1

SELECT Concat(vend_name, ' (', vend_country, ')')
FROM vendors
ORDER BY vend_name;

阅读本教程：

http://www.brainbell.com/tutorials/MySQL/Concatenating_Fields.htm

Answer 2

mysql中有CONCAT函数。

select concat('The Year is ', year), concat('The month is ', month) from time where rownum < 2;