Mysql “own alias”错误。等等，不要走开！你是对的，因为我手工编码了它，所以其中有一些错误。现在它有一个分组依据和一个别名。它正在工作： SELECT id FROM cm.dbs WHERE id NOT IN (SELECT filenumb

---

“own alias”错误。等等，不要走开！你是对的，因为我手工编码了它，所以其中有一些错误。现在它有一个分组依据和一个别名。它正在工作：

    SELECT id FROM cm.dbs WHERE id NOT IN (SELECT filenumber FROM cm.log 
    WHERE STR_TO_DATE(logdate, '%m/%d/%Y') 
   BETWEEN DATE_SUB(NOW(), INTERVAL 14 DAY) 
   AND NOW() 
   GROUP BY filenumber) 
   AND assignedto != 'OLD_ACCTS' 
   AND assignedto != 'HOUSE_ACCOUNTS' 
   AND assignedto != 'PAID_ACCOUNTS';

id  int(10) UN PK AI

title   varchar(45) 

firstname   varchar(200) 

middlename  varchar(200) 

lastname    varchar(200) 

fullname    varchar(200) 

address varchar(200) 

address2    varchar(200) 

city    varchar(200) 

state   varchar(200) 

zip varchar(50) 

assignedto  varchar(200) 

...

id  int(10) UN PK AI

filenumber  varchar(200) 

agentname   varchar(200) 

logtime varchar(200) 

logdateandtime  varchar(200) 

logdate varchar(200) 

logmessage  mediumtext 

SELECT DISTINCT dbs.id
FROM cm.dbs, cm.log
WHERE dbs.id = log.filenumber
      AND STR_TO_DATE(log.logdate, '%m/%d/%Y') NOT BETWEEN DATE_SUB(NOW(), INTERVAL 14 DAY) AND NOW()
      AND dbs.assignedto NOT IN ('OLD_ACCTS','HOUSE_ACCOUNTS','PAID_ACCOUNTS');

SELECT id FROM cm.dbs WHERE id NOT IN (SELECT filenumber FROM cm.log 
    WHERE STR_TO_DATE(logdate, '%m/%d/%Y') 
   BETWEEN DATE_SUB(NOW(), INTERVAL 14 DAY) 
   AND NOW() 
   GROUP BY filenumber) 
   AND assignedto NOT IN ('OLD_ACCTS','HOUSE_ACCOUNTS','PAID_ACCOUNTS');

SELECT filenumber, MAX(logdate)
FROM cm.log
GROUP BY filenumber

SELECT filenumber, MAX(logdate), assignedto
FROM cm.log as log
INNER JOIN cm.dbs as dbs ON log.filenumber = dbs.id
GROUP BY filenumber

SELECT * FROM (
    SELECT log.filenumber, MAX(logdate) as logdate, assignedto
    FROM cm.log as log
    INNER JOIN cm.dbs as dbs ON log.filenumber = dbs.id 
    GROUP BY filenumber) t
WHERE logdate < DATE_SUB(NOW(), INTERVAL 14 DAY) 
AND assignedto NOT IN ('OLD_ACCTS','HOUSE_ACCOUNTS','PAID_ACCOUNTS')