MYSQL Select row if value found in any column of a particular table

Question

我试图从特定表中获取所有行，如果在特定表的任何列中找到值。

Answer 1

you can just use IN . eg

SELECT *
FROM tbName
WHERE yourValue IN (column1, column2, column3, ....)

Answer 2

You can probably use the EXISTS to do your job.

Below query will get the stores name only if city 2 has a name.

SELECT store_name FROM stores WHERE EXISTS (SELECT name FROM cities WHERE id = 2);