select @@sql_mode; 先查看自己mysql的mode配置,一般不出意外都是:ONLY_FULL_GROUP_BY。 此时,方案就是修改sql_mode: sql_mode="STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION" 倘若你通过修改sql能够解决问题而不影响你的结果,那么个人认为最好是优先...
SQLSTATE[42000]: Syntax error or access violation: 1055 Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'zyd_first.info.id' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by 一、...
The GROUP BY clause allows you to find the characteristics of groups of rows rather than individual rows. When you specify a GROUP BY clause, SQL divides the selected rows into groups such that the rows of each group have matching values in one or more columns or expressions. Next, SQL ...
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....
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...
GROUP BY department; Because you have listed one column (the department field) in your SQL SELECT statement that is not encapsulated in the SUM function, you must use the GROUP BY Clause. The department field must, therefore, be listed in the GROUP BY clause. ...
在运行sql语句时,出现以下问题: [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...
可是有人会想了,cno 和 cname 本来就是一对一,cno 一旦确定,cname 也就确定了,那 SQL 是不是可以这么写 ? SELECT cno,cname,count(sno),MAX(sno) FROM tbl_student_class GROUP BY cno; 执行报错了: [Err] 1055 - Expression #2 of SELECT list is not in GROUP BY clause and contains nonaggregated...
简介:MySQL5.7.5后only_full_group_by成为sql_mode的默认选项之一,这可能导致一些sql语句失效。 一、原因 MySQL5.7.5后only_full_group_by成为sql_mode的默认选项之一,这可能导致一些sql语句失效。 二、解决办法 1、命令行打开mysql.cnf,默认路径为/etc/mysql/conf.d/mysql.cnf,如果找不到可以使用whereis进行查...
GROUP BY <attribute list>maps source records to result records by the combination of values in the listed attributes. Specifying only GROUP You can use aGROUPclause to aggregate results into a single bucket. For example, the following statement uses theSUMstatement to return a single sum across...