- sql = "INSERT INTO Books (id, author, classification, cover, description, path, series, title, volume) VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9);"
+ sql = "INSERT INTO Books (id, author, classification, cover, description, language, path, series, title, volume) VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10);"