MYSQL根据所选数据库插入一个ID？

Question

这里就是我有这么远（工作正在进行中）工作：

INSERT INTO customer_bi.flight_search (
SELECT 
    NULL, 
    count(temp.audit_id) AS `count`, 
    temp.destination, 
    temp.audit_subsite_id, 
    temp.subsite_desc, 
    DATE_FORMAT(temp.audit_date, '%Y-%m-%d') AS search_date 
FROM 
    (
     SELECT DISTINCT 
      a.audit_id, 
      fs.destination, 
      a.audit_subsite_id, 
      s.subsite_desc, 
      a.audit_date 
     FROM 
      audit_flight_search fs 
     INNER JOIN audit a ON a.audit_id = fs.audit_id 
     INNER JOIN gns.subsite s ON a.audit_subsite_id = s.subsite_id 
     WHERE 
      a.audit_date >= CURRENT_DATE() - INTERVAL 1 DAY 
     AND a.audit_date < CURRENT_DATE() 
     AND fs.flight_type = 'ROUNDTRIP' 
     and (a.audit_member_id IS NULL OR a.audit_member_id != 10172424) 
    ) temp 
GROUP BY 
    temp.subsite_desc, 
    temp.destination 
ORDER BY 
    temp.subsite_desc ASC, 
    `count` DESC 
) 

在数据库customer_bi，我必须列出所有我们的其他数据库的使用标识的表。例如，GNS的ID为4.我想要做的是根据数据库名称在第二个内部联接中插入该标识（本例中为gns.subsite）。我搜索了一直没有找到答案，但我并不真正了解PHP，因此我无法将其用作解决方案。有任何想法吗？

Answer 1

你有

gns.subsite s 

一个加入，但你正在寻找的ID是不是在你的选择列表

a.audit_id, 
fs.destination, 
a.audit_subsite_id, 
s.subsite_desc, 
a.audit_date 

缺少

s.subsite_id 

Answer 2

我其实解决这个问题通过在每个数据库中创建一个单元格表来保存该ID并添加子查询。这解决了问题：

INSERT INTO customer_bi.flight_search (
SELECT 
    NULL, 
    count(temp.audit_id) AS `count`, 
    temp.destination, 
    temp.db_id, 
    temp.audit_subsite_id, 
    temp.subsite_desc, 
    DATE_FORMAT(temp.audit_date, '%Y-%m-%d') AS search_date 
FROM 
    (
     SELECT DISTINCT 
      a.audit_id, 
      fs.destination, 
      (SELECT 
       db_id 
      FROM gns.db_id) as db_id, 
      a.audit_subsite_id, 
      s.subsite_desc, 
      a.audit_date 
     FROM 
      audit_flight_search fs 
     INNER JOIN audit a ON a.audit_id = fs.audit_id 
     INNER JOIN gns.subsite s ON a.audit_subsite_id = s.subsite_id 
     WHERE 
      a.audit_date >= CURRENT_DATE() - INTERVAL 1 DAY 
     AND a.audit_date < CURRENT_DATE() 
     AND fs.flight_type = 'ROUNDTRIP' 
     and (a.audit_member_id IS NULL OR a.audit_member_id != 10172424) 
    ) temp 
GROUP BY 
    temp.subsite_desc, 
    temp.destination 
ORDER BY 
    temp.subsite_desc ASC, 
    `count` DESC 
)