MySQL:Cari string yang sama di beberapa kolom

Solusi sederhana:

SELECT * 
FROM projects 
WHERE 
    CONCAT(category,name,description,keywords,type) LIKE '%query%' 
ORDER BY name ASC;

Anda dapat menambahkan pemisah antar kolom jika diperlukan:

SELECT * 
FROM projects 
WHERE 
    CONCAT(category,"|",name,"|",description,"|",keywords,"|",type) LIKE '%query%' 
ORDER BY name ASC;

Anda juga dapat menggunakan pencarian teks lengkap (Anda perlu membuat indeks teks lengkap seperti yang dijelaskan di sini:Bagaimana cara kerja INDEKS FULLTEXT pada beberapa kolom? )

SELECT *, MATCH (category,name,description,keywords,type) AGAINST ('query') AS score FROM projects WHERE MATCH (category,name,description,keywords,type) AGAINST ('query');