Mysql 提取具有两个值的记录

我有一个疑问

结果集：

我只需要同时使用

codsw

，在本例中，MEGA SHOW和ANCORINA以及相同的

idlocation

，来提取记录

如果您看到我的结果集，它会显示所有带有第一个或第二个

codsw

的

idlocation

，而不是两者

例如，我希望结果只看到

idlocation

34或623，而不是另一个

非常感谢

---

Riccardo

以下查询中的子查询使用条件聚合来标识包含

MEGA SHOW

和

ANCORINA

的所需组。然后，此子查询与原始查询进行内部联接，以过滤掉不希望出现在结果集中的记录

SELECT players.codsw, sessions.userid, sessions.idlocation, location.denomination
FROM sessions 
LEFT JOIN location
    ON location.idlocation = sessions.idlocation
LEFT JOIN players
    ON players.userid = sessions.userid
INNER JOIN
(
    SELECT sessions.userid AS userid, sessions.idlocation AS idlocation,
           SUM(CASE WHEN players.codsw IN ('MEGA SHOW', 'ANCORINA')
                    THEN 1 ELSE 0 END) AS codswSum
    FROM sessions 
    LEFT JOIN location
        ON location.idlocation = sessions.idlocation
    LEFT JOIN players
        ON players.userid = sessions.userid
    GROUP BY sessions.userid, sessions.idlocation
    HAVING codswSum = 2
) t
    ON sessions.userid = t.userid AND sessions.idlocation = t.idlocation
ORDER BY location.denomination

---

以下查询中的子查询使用条件聚合来标识同时包含

MEGA SHOW

和

ANCORINA

的所需组。然后，此子查询与原始查询进行内部联接，以过滤掉不希望出现在结果集中的记录

SELECT players.codsw, sessions.userid, sessions.idlocation, location.denomination
FROM sessions 
LEFT JOIN location
    ON location.idlocation = sessions.idlocation
LEFT JOIN players
    ON players.userid = sessions.userid
INNER JOIN
(
    SELECT sessions.userid AS userid, sessions.idlocation AS idlocation,
           SUM(CASE WHEN players.codsw IN ('MEGA SHOW', 'ANCORINA')
                    THEN 1 ELSE 0 END) AS codswSum
    FROM sessions 
    LEFT JOIN location
        ON location.idlocation = sessions.idlocation
    LEFT JOIN players
        ON players.userid = sessions.userid
    GROUP BY sessions.userid, sessions.idlocation
    HAVING codswSum = 2
) t
    ON sessions.userid = t.userid AND sessions.idlocation = t.idlocation
ORDER BY location.denomination

试试这个：

SELECT players.codsw
      ,sessions.userid
      ,sessions.idlocation
      ,location.denomination
  FROM sessions sess
      ,location loc
      ,players  pl
 WHERE location.idlocation = sessions.idlocation
   AND players.userid = sessions.userid
   AND players.codsw IN ('MEGA SHOW', 'ANCORINA')
   AND EXISTS (SELECT sessions.idlocation
              ,COUNT(*)
          FROM sessions
              ,location
              ,players
         WHERE location.idlocation = sessions.idlocation
           AND players.userid = sessions.userid
           AND players.codsw IN ('MEGA SHOW', 'ANCORINA')
           AND sessions.idlocation = sess.idlocation
         GROUP BY sessions.idlocation
        HAVING COUNT(*) > 1)
 ORDER BY location.denomination

试试这个：

SELECT players.codsw
      ,sessions.userid
      ,sessions.idlocation
      ,location.denomination
  FROM sessions sess
      ,location loc
      ,players  pl
 WHERE location.idlocation = sessions.idlocation
   AND players.userid = sessions.userid
   AND players.codsw IN ('MEGA SHOW', 'ANCORINA')
   AND EXISTS (SELECT sessions.idlocation
              ,COUNT(*)
          FROM sessions
              ,location
              ,players
         WHERE location.idlocation = sessions.idlocation
           AND players.userid = sessions.userid
           AND players.codsw IN ('MEGA SHOW', 'ANCORINA')
           AND sessions.idlocation = sess.idlocation
         GROUP BY sessions.idlocation
        HAVING COUNT(*) > 1)
 ORDER BY location.denomination

---

谢谢的Tim，但没有任何更改会产生效果，我总是使用单idlocation和单codsw，如idlocation=4058。此查询将自动实现您的逻辑。如果您能给出具体的反馈，说明哪些地方不起作用，也许我可以提供帮助。我必须使用codesw MEGA SHOW和ANCORINA提取所有位置，查询实际上提取例如idlocation=4058，其中只有MEGA SHOW记录而没有ANCORINA。如果没有MEGA SHOW和ANCORINA，我就不必退出记录。你确定你真的测试了我的查询吗？您确定

idlocation

4058没有

codsw

ANCORINA

？是的，Tim，结果只有一个记录MEGA SHOW 18532 3729 Magazzino:MGZ Games Lodi Pordenone 2银行的Tim，但没有任何更改生效，我总是使用单idlocation和单codsw，如idlocation=4058。此查询将自动实现您的逻辑。如果您能给出具体的反馈，说明哪些地方不起作用，也许我可以提供帮助。我必须使用codesw MEGA SHOW和ANCORINA提取所有位置，查询实际上提取例如idlocation=4058，其中只有MEGA SHOW记录而没有ANCORINA。如果没有MEGA SHOW和ANCORINA，我就不必退出记录。你确定你真的测试了我的查询吗？你确定

idlocation

4058没有

codsw

ANCORINA

吗？是的，蒂姆，结果只有一个records MEGA SHOW 18532 3729 Magazzino:MGZ Games Lodi Pordenone 2是的，执行查询和结果需要很多时间设置它非常大，但这就像我的期望一样，执行查询和结果集需要很多时间，它非常大，但我的期望是什么