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问题描述
SELECT id, <X> AS name FROM `table`
基本上
是
的组合姓氏 + ', ' + 名字
Basically <X>
is a combination of
lastname + ', ' + firstname
例子是
id | name |
2 | Smith, Bob |
3 | Jones, Susy |
这只是一个例子,我真的不想把名字组合得这么简单.
This is just an example, I don't really want to combine names so simple.
推荐答案
CONCAT()
函数?
SELECT id, CONCAT(lastname, ', ', firstname) AS name FROM `table`;
如果要连接多个字段,还可以考虑 CONCAT_WS()
函数,其中第一个参数是其余参数的分隔符,添加在要连接的字符串之间:
If you are going to concatenate many fields, you could also consider the CONCAT_WS()
function, where the first argument is the separator for the rest of the arguments, which is added between the strings to be concatenated:
SELECT id,
CONCAT_WS(',', field_1, field_2, field_3, field_4) list
FROM `table`;
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