在CONCAT中添加通配符在mysql中

Question

我想在三個字段上搜索：id，name和address。我希望我的搜索有點聰明。

用戶表

id   |  firstname  |  lastname  |  address 
N29-0001 |  John   |  Doe   |  California 
N29-0002 |  Jonathan  |  Morson  |  Miami 

我的查詢到目前爲止

select subscriberid, CONCAT(firstname," ",lastname) as fullname, address, city from subscriber where id like "%N29 Joh%" or CONCAT(firstname," ",lastname) like "%N29 Joh%" or address like "%N29 Joh%" or city like "%N29 Joh%" 

我想我的查詢搜索，如果我輸入N29荷蘭Joh，它將搜索李四。

Answer 1

您可能需要全文索引。但是，如果你想匹配任何單詞而不關心性能，你可以使用正則表達式：

select subscriberid, CONCAT(firstname, ' ', lastname) as fullname, 
     address, city 
from subscriber 
where subscriberid regexp 'N29|Joh' or 
     concat(firstname, ' ', lastname) like 'N29|Joh' or 
     address like 'N29|Joh' or 
     city like 'N29|Joh';