选择distinct返回重复项

Question

我有以下查询:

SELECT 
DISTINCT (TK.TICKETID),
TK.DESCRIPTION,
TK.CREATIONDATE,
TK.REPORTEDBY,
TK.OWNER,
WF.ASSIGNCODE
FROM ticket TK
INNER JOIN wfassignment WF on WF.OWNERID = TK.TICKETUID
WHERE TK.status not in ('????????', '??????', '????????') AND WF.ASSIGNSTATUS not in ('COMPLETE', 'INACTIVE')
ORDER BY TK.TICKETID;

但它在TK.TICKETID属性中返回重复项.如果我删除其他属性都可以.例如

TK.TICKETID TK.DESCRIPTION TK.CREATIONDATE  TK.REPORTEDBY  TK.OWNER     WF.ASSIGNCODE
?1013249    ????? ???????   02.06.14        CHERNOVDK      SKACHKOVSV   NOVIKOVVA
?1013249    ????? ???????   02.06.14        CHERNOVDK      SKACHKOVSV   PRITULADV
?1013249    ????? ???????   02.06.14        CHERNOVDK      SKACHKOVSV   SVESHNIKOVAV

我的问题很简单,但我不能自己解决.对任何形式的帮助都会很有帮助.

Answer 1

尝试这个：

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SELECT \nTK.TICKETID,\nTK.DESCRIPTION,\nTK.CREATIONDATE,\nTK.REPORTEDBY,\nTK.OWNER,\nmax(WF.ASSIGNCODE)\nFROM ticket TK\nINNER JOIN wfassignment WF on WF.OWNERID = TK.TICKETUID\nWHERE TK.status not in ('\xd0\xa7\xd0\x95\xd0\xa0\xd0\x9d\xd0\x9e\xd0\x92\xd0\x98\xd0\x9a', '\xd0\x97\xd0\x90\xd0\x9a\xd0\xa0\xd0\xab\xd0\xa2', '\xd0\x92\xd0\xab\xd0\x9f\xd0\x9e\xd0\x9b\xd0\x9d\xd0\x95\xd0\x9d') AND WF.ASSIGNSTATUS not in ('COMPLETE', 'INACTIVE')\ngroup by\nTK.TICKETID,\nTK.DESCRIPTION,\nTK.CREATIONDATE,\nTK.REPORTEDBY,\nTK.OWNER\nORDER BY TK.TICKETID;\n

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