Question

如何在SQL或PHP中组合这两个sql查询的结果..它们都涉及连接..我想将它们组合起来并按orderid排序..我该怎么办？< / p>

第一次查询

$sqlstr = "SELECT op.* FROM products_to_products_extra_fields AS p 
    INNER JOIN orders_roster AS r ON p.products_id = r.products_id 
    INNER JOIN orders_products AS op ON r.orders_id = op.orders_id
    INNER JOIN orders AS o on op.orders_id = o.orders_id
    WHERE p.products_extra_fields_id = 14
      AND p.products_extra_fields_value between '" 
         . tep_db_input($startdate) . "' and '" 
         . tep_db_input($enddate) . " 23:59:59'
      AND r.roster_status != 'Removed'
      AND o.payment_method = 'Institutional Billing'
      AND o.orders_status < 100001
    GROUP BY o.orders_id
    ORDER BY DECODE(o.cc_type, '$salt') ASC";

第二次查询

$sqlstr2 = "SELECT op.* FROM products_to_products_extra_fields AS p 
    INNER JOIN orders_products AS op ON p.products_id = op.products_id 
    INNER JOIN orders AS o on op.orders_id = o.orders_id
    WHERE p.products_id IN 
      (SELECT products_id 
        FROM products_to_products_extra_fields 
        WHERE p.products_id NOT IN 
          (SELECT products_id 
           FROM products_to_products_extra_fields 
           WHERE products_extra_fields_id = 14)
      )
      AND o.date_purchased between '" 
         . tep_db_input($startdate) . "' and '" 
         . tep_db_input($enddate) . " 23:59:59'
      AND o.payment_method = 'Institutional Billing'
      AND o.orders_status < 100001
    GROUP BY o.orders_id
    ORDER BY DECODE(o.cc_type, '$salt') ASC";

Answer 1

如果你需要将它们组合在PHP端，我会假设你留下了一组数组（MySQL Rows），你可以简单地遍历两组结果并使用array_push将它们推入第三（完整的）数组。您也可以使用array_merge，但有时使用多维数组，最终结果不是您所期望的。

http://us3.php.net/manual/en/function.array-push.php http://us3.php.net/function.array-merge

Answer 2

只需进行UNION查询并在SQL端合并结果。不需要PHP。

结合两个SQL查询的结果

2 个答案: