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SELECT ?? ?? GROUP BY ?? ?? ???? ?? ?? ???? ????....sql_mode=only_full_group_by? ???? ????.
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<p>?? Windows PC?? WAMP ??? ?? MySQL 5.7.13? ???? ????</p> <p>? ??? ??? ? ??? ?????</p> <pre class="brush:php;toolbar:false;">SELECT * `tbl_customer_pod_uploads`?? ??? `load_id` = '78' AND `??` = '??' GROUP BY `proof_type`</pre> <p>?? ?? ??? ?????</p> <???> <p> SELECT ??? ??? #1? GROUP BY ?? ??? GROUP BY ?? ?? ?? ??? ???? ?? ??? ? 'returntr_prod.tbl_customer_pod_uploads.id'? ?????. sql_mode = only_full_group_by? ???? ????</p> </???> <p>?? ?? ???? ?????. </p> <p>??? ??? ??? ??? ????</p> <pre class="brush:php;toolbar:false;">+----+---------+---------+--------- ---------------+------------+---+------- --- ----+---------------+------------+---------+----- --- -------------+---------+ | id | load_id | ??_?? | +----+---------+---------+---------+---------+--- ------+---+---------------+--------- ------- ---+---+---------+------------- -------+--- ----+ 1 | 1 | 78 | 1 | 2017-01-27 11:30:14 | +------+---------+---------+---------+---------+--- ------+---+---------------+--------- ------- ---+---+---------+------------- -------+--- -----+</pre> <p><br /></p>
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MySql ???? ??? ?? ONLY_FULL_GROUP_BY? ????.

Mysql ?? 5.7.5?? ?? : SQL ??? ????? ?????? ONLY_FULL_GROUP_BY.

?? 5.7.5 ?? : ????? ????? ?? ???? ONLY_FULL_GROUP_BY.

SQL ??? ???? ??(?? 5.7.5?? ????? ????), MySQL? ?? ?? ??, HAVING ?? ?? non? ???? ORDER BY ??? ?????. -?? ?, ? ?? GROUP BY ?? ??? ????? ??? ?? ????? ????. ONLY_FULL_GROUP_BY SQL模式(從版本5.7.5開始默認(rèn)啟用),MySQL將拒絕查詢選擇列表、HAVING條件或ORDER BY列表引用非聚合列,這些列既不在GROUP BY

? ??? ????? ?? ? ?? ?? ?? ? ??? ?????

(1) PHPMyAdmin

Disabled: ??ONLY_FULL_GROUP_BY

phpMyAdmin? ???? ?? ?? ????? ??

sql_mode ??? ?????.

sql ?? ??? ???? ???

textsql mode變量并從值中刪除ONLY_FULL_GROUP_BY? ?????.

??

(2) SQL/?? ????

?? ??? ???? ???????: mode. ONLY_FULL_GROUP_BY ????

??

(3) SELECT *? ???? ???.

??? ?????? ?? ?? ONLY_FULL_GROUP_BY

?) ? SELECT查詢中使用相關(guān)列。相關(guān)列指的是在group by子句中出現(xiàn)的列或帶有聚合函數(shù)(MAXMIN、SUM、COUNT


?? ??

? ???? ??? ??? ????? ???? ??? ???? ??? ?????. point(1)或point(2)

??? MySQL? ?? ??? ??? ?? ??? ????? ?? ??(?:

)?? ?? ???? ???. [mysqld]部分的/etc/mysql/my.cnf

???: /etc/mysql/my.cnf

?? ??: sql_mode 或者 sql-mode ??

sql-mode

??? ??? ??ONLY_FULL_GROUP_BY

?? ??? ?????.

??sql_mode:

??? ?? ??? ??? ?? ?? ?? 2?? ??????? ????
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??

? ??? ?? ??? ???? MySQL?? SQL ??? ???? ??? ?????.

???

???? ??? ??... ? ????? ??? ??? ??? ? SQL ??? only_full_group_by? ??????.

?? ??? GROUP BY ?? SELECT ??? ??? ?? ?? ?????. sql_mode? ???? ??? ?? ?? ? ????.

?????... :-)


???? ??: 2023? 7? 14?

SQL ???? ???? ?? ?? ????? ???? ?? ??? ?? ?? ??? ?? (SELECT *...) ?? ???? ?? ?? @Tim Biegeleisen? ???? ???? ??? ??? ?? ?? ??? ???? ????. https://stackoverflow.com/a/41887524/3602846

? ?? ??