SELECT COUNT(*) > 0 AS fits FROM vehicle_application va JOIN vehicle_types vt ON va.type_id = vt.type_id WHERE va.article_id = 987654 AND vt.type_id = 12345;
Modern versions often include high-quality images in WebP format, automaker logos, and even assembly icons. Why Developers Love (and Fear) It
$stmt = $pdo->prepare(" SELECT a.article_nr, a.price, s.supplier_name FROM articles a JOIN vehicle_article_link l ON a.article_id = l.article_id JOIN article_supplier asup ON a.article_id = asup.article_id JOIN suppliers s ON asup.supplier_id = s.supplier_id WHERE l.vehicle_type_id = :vehicle_id AND a.category = :category AND a.is_active = 1 LIMIT 50 "); $stmt->execute(['vehicle_id' => $vehicleId, 'category' => 'brakes']); Tecdoc Mysql
CREATE TABLE cross_numbers ( cross_id BIGINT AUTO_INCREMENT PRIMARY KEY, article_id BIGINT NOT NULL, ref_number VARCHAR(50) NOT NULL, -- OEM or competitor number ref_type ENUM('OEM', 'COMPETITOR', 'SUPERSEDED'), INDEX idx_ref (ref_number), FOREIGN KEY (article_id) REFERENCES articles(article_id) ) ENGINE=InnoDB;
CREATE TABLE vehicle_models ( model_id INT PRIMARY KEY, make_id INT NOT NULL, model_name VARCHAR(150), start_year SMALLINT, end_year SMALLINT, FOREIGN KEY (make_id) REFERENCES vehicle_makes(make_id), INDEX idx_make (make_id), INDEX idx_years (start_year, end_year) ) ENGINE=InnoDB; SELECT COUNT(*) > 0 AS fits FROM vehicle_application
The sheer volume of technical attributes and standardized names gives your site immediate SEO depth that is hard to build manually. The Con: The Integration Wall.
Instead of deleting, add a is_active column. This preserves historical fitment for older vehicles. Instead of deleting, add a is_active column
Working with TecDoc in MySQL is like having the blueprints to every car on the road, but the blueprints are written in a language that requires a PhD in "Relational Hell" to decode quickly. The Pro: Total Data Accuracy.
CREATE TABLE articles ( article_id BIGINT PRIMARY KEY, generic_name VARCHAR(255), brand_id INT, is_oem BOOLEAN DEFAULT FALSE, UNIQUE KEY uk_article_brand (article_id, brand_id) ) ENGINE=InnoDB;