我是自學的,當涉及到MySQL的,我不知道什麼是做這樣的事情的正確方法:MySQL的 - 冷凝查詢
$type1_sql ="SELECT * FROM type1 WHERE type1_id=$type1_id";
$type1_res =mysqli_query($handle_db, $type1_sql);
$type1_row =mysqli_fetch_array($type1_res);
$type1_name =$type1_row['name'];
$type2_sql ="SELECT * FROM type2 WHERE type2_id=$type2_id";
$type2_res =mysqli_query($handle_db, $type2_sql);
$type2_row =mysqli_fetch_array($type2_res);
$type2_name =$type2_row['name'];
$type3_sql ="SELECT * FROM type3 WHERE type3_id=$type3_id";
$type3_res =mysqli_query($handle_db, $type3_sql);
$type3_row =mysqli_fetch_array($type3_res);
$type3_name =$type3_row['name'];
是更好地做什麼我做;單獨查詢一切,還是有辦法將所有這一切壓縮成一個查詢?
感謝, 傑森
如果查詢是不相關的,它們都服務於不同的目的,有沒有辦法把它們結合起來那很好。除非你只是使用'name',否則你不需要查詢'*'所有記錄 – 2012-03-03 22:06:09