SQL錯誤：1267 - 排序規則的非法組合（utf8_general_ci，隱含的）和（utf8_persian_ci，隱含的）操作 '='

Question

的MyBB SQL錯誤

的MyBB遇到了內部SQL錯誤，無法繼續。

SQL錯誤：

1267 - Illegal mix of collations (utf8_general_ci,IMPLICIT) and (utf8_persian_ci,IMPLICIT) for operation '=' 

查詢：

SELECT t.* 
    ,t.subject AS threadsubject 
    ,u.username 
    ,u.usergroup 
    ,u.displaygroup 
    ,i.* 
    ,i.NAME AS iconname 
    ,t.dateline AS threaddate 
    ,t.lastpost AS threadlastpost 
FROM mybb_threads t 
LEFT JOIN mybb_icons i ON (i.iid = t.icon) 
LEFT JOIN mybb_users u ON (t.lastposter = u.username) 
WHERE t.visible = '1' 
    AND t.uid = '54445' 
GROUP BY t.tid 
ORDER BY threadlastpost DESC LIMIT 5 

請聯繫MyBB的集團的技術支持。

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Answer 1

羅斯·史密斯II的檢查方案。他寫了關於在sql語句中定義排序規則的文章。

Illegal mix of collations (utf8_unicode_ci,IMPLICIT) and (utf8_general_ci,IMPLICIT) for operation '='