mySQL表創建查詢語法錯誤

Question

//請任何人都可以告訴我這個MySQL查詢語法有什麼問題？

String createTableSQL = "" 
       + " CREATE TABLE location(" 
       + " location_id INTEGER PRIMARY KEY AUTOINCREMENT," 
       + " location_name VARCHAR(30)," 
       + " addr VARCHAR(30)," 
       + ")"; 

Answer 1

刪除最後一個變化AUTOINCREMENT在AUTO_INCREMENT並添加PRIMARY KEY（location_id）

String createTableSQL = "" 
      + " CREATE TABLE location(" 
      + " location_id INTEGER PRIMARY KEY AUTO_INCREMENT," 
      + " location_name VARCHAR(30)," 
      + " addr VARCHAR(30)," 
      + " PRIMARY KEY (`location_id `))";