SQL：在字符串上触发 Substring？

Question

I've got a table in SQL with badwords and his ids, and also I've got a table with properties of photos of a gallery. I want to make a trigger that dont let you insert a photo with bad words on the photo.title and on the photo.description. How can I do it??

CREATE TABLE Photos ( photoId INT NOT NULL PRIMARY KEY AUTO_INCREMENT, title VARCHAR(128) NOT NULL, description VARCHAR(512), date DATETIME DEFAULT CURRENT_TIMESTAMP, url VARCHAR(512) NOT NULL, visibility VARCHAR(16) NOT NULL, userId INT, FOREIGN KEY (userId) REFERENCES users(userId), CONSTRAINT ValidVisibility CHECK (visibility in ('Public', 'Private')) ); 
CREATE TABLE BadWords ( wordId INT NOT NULL PRIMARY KEY AUTO_INCREMENT, word VARCHAR(100) NOT NULL );

Answer 1

EDIT: make a trigger on insertion that will do this select:

 SELECT * FROM Photos, BadWords 
  
 WHERE  Photos.title LIKE CONCAT('%', BadWords.word ,'%') OR

        Photos.description LIKE CONCAT('%', BadWords.word ,'%')

and delete all results. (the select is checking if title or description contains a value from the BadWords.word column )