在 mysql 的 CONCAT 中添加通配符

Question

我想搜索三个字段：id、name 和 address。我希望我的搜索更智能。

订阅者表

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

到目前为止我的查询

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%"

如果我输入 N29 Joh，我希望我的查询进行搜索，它将搜索 John Doe。

Answer 1

您可能需要全文索引。但是，如果你想匹配任何单词并且不关心性能，你可以使用正则表达式：

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';