B. 比较使用EXISTS和IN的查询 这个例子比较了两个语义类似的查询。第一个查询使用EXISTS而第二个查询使用IN。注意两个查询返回相同的信息。 USEpubs GO SELECTDISTINCTpub_nameFROMpublishers WHEREEXISTS(SELECT*FROMtitlesWHEREpub_id=publishers.pub_idANDtype=/'business/')GO --Or, using the IN clause:USEpubs...
EXISTS=IN,意思相同不过语法上有点点区别,好像使用IN效率要差点,应该是不会执行索引的原因 SELECTID,NAMEFROMAWHEREIDIN(SELECTAIDFROMB) NOTEXISTS=NOTIN,意思相同不过语法上有点点区别 SELECTID,NAMEFROMAWHEREIDNOTIN(SELECTAIDFROMB) 下面是普通的用法: SQL中IN,NOTIN,EXISTS,NOTEXISTS的用法和差别: IN:确定给...
[Err] 1055 - Expression #1 of ORDER BY clause is not in GROUP BY clause and contains nonaggregated c 原因: MySQL 5.7.5及以上功能依赖检测功能。如果启用了ONLY_FULL_GROUP_BY SQL模式(默认情况下),MySQL将拒绝选择列表,HAVING条件或ORDER BY列表的查询引用在GROUP BY子句中既未命名的非集合列,也不在功...
mysql>SELECT name, address, MAX(age) FROM t GROUP BY name; ERROR 1055 (42000): Expression #2 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'mydb.t.address' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode...
使用SQL命令的in in等删除数据的总结 总结: 1、查询时用 not in 效率极其低下,因此结合left join改为in查询,效率很快 原语句: select*frommy_test_tablewhereid notin(selectb.idasidfrom( SELECT MAX(a.`ModifyAt`)ModifyAt,a.userid FROM my_test_table a GROUP BY a.UserId,a.SeriesId,a.CourseId...
mysql> SELECT name, address, MAX(age) FROM t GROUP BY name; ERROR 1055 (42000): Expression #2 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'mydb.t.address' which is not functionally dependent on columns in GROUP BY clause; this i...
1 of ORDER BY clause is not in GROUP BY clause and contains nonaggregated column 'apimonitor.t.cr... 执行一条sql语句: selectt.createTime,t.`status`,count(t.`status`)ascountfromhttp_sequence_log twheret.pguid='ec8fce9c11504a62969d6b827a0770f7'groupby t.`status` order by t.create...
#mysql#解决:"500 Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated..." Jessica 同一个程序,运行在dev和prod不同环境里,同一个接口竟然一个正常,一个报错500,但是数据库的数据都一样的,搜了很久,终于在一篇文章里面解决了: 问题出现的原因:MySQL 5.7.5及以上功能依赖检测...
摘要:MySQL升级5.7以后经常会出现这种错误:[Err] 1055 - Expression #1 of ORDER BY clause is not in GROUP BY clause and co... MySQL升级5.7以后经常会出现这种错误: [Err] 1055 - Expression #1 of ORDER BY clause is not in GROUP BY clause and contains nonaggregated column 'information_schema.PROF...
Caused by: java.sql.SQLSyntaxErrorException: Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'cnpc.T1.id' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by at com.mysql.cj.jdbc....