那有可能計算出兩行mysql之間有多少行？

Question

我有一個如下的mysql表。 我想計算漿果和草莓之間的行數，在我的情況下是這兩個水果之間的2行。 我該如何實現？

 id fruit 1 apple 2 berry 3 banana 4 pineapple 5 strawberry 

Answer 1

試試這個查詢，

  $sql = "SELECT COUNT(*) as total_count FROM table_name JOIN ( SELECT MAX(id) as 
  maxid,MIN(id) as minid FROM `table_name` WHERE fruit = 'berry' OR 
  fruit= 'strawberry') as temp ON table_name.id > temp.minid AND 
  table_name.id<temp.maxid";

Answer 2

您可以編寫與此類似的查詢-

$sql = select * from table where fruit between 'berry' and 'strawberry';
$result = mysql_query($sql);
$rows =  mysql_num_rows($result);

這是參考-帶字符串列的SQL Between子句