1055(42000): SELECT list is not in GROUP BY clause and contains nonaggregated column 原因与解决方案 该报错主要是因为sql_mode参数被修改导致: 原因一:用户修改sql_mode参数导致GROUP BY的语法不合规 原因:用户修改了sql_mode参数,添加了ONLY_FULL_GROUP_
The department field must, therefore, be listed in the GROUP BY clause. SQL GROUP BY functionThe GROUP BY statement is used in conjunction with the aggregate functions to group the result-set by one or more columns. SQL GROUP BY Syntax SELECT column_name, aggregate_function(column_name) ...
-- group by country and state--to calculate minimum age of each groupSELECTcountry, state,MIN(age)ASmin_ageFROMPersonsGROUPBYcountry, state; Here, the SQL command groups all persons with similarcountryandstate, and gives the minimumageof each group. GROUP BY With HAVING Clause We can use th...
Expression #2 ofSELECT list is not in GROUP BY clause and contains nonaggregatedcolumn ‘sss.month_id’ which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by 问题出现的原因:MySQL5.7.5及以上功能依赖检测功能。如果启用了ONLY_FULL...
在pg数据库写sql 的时候报错.因为mysql可以执行的语句到pg数据库不行了,看这篇文章就能理解了. column "t1.col_1" must appear in the GROUP BY clause or be used in an aggregate function 什么意思?列t1.col_1必须出现在GROUP BY子句中或在聚合函数中使用。其实,这个错误遇到得多了,都能够避免,按照错误...
MySQL出现GROUP BY clause错误解决办法 #1)当mysql数据库出现如下错误: #which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by #2)解决办法 #修改sql_mode #查看sql_mode select @@sql_mode,@@global.sql_mode;...
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 nonaggregat...
今天,我们将讨论一个常见的Java异常——java.sql.SQLSyntaxErrorException,并深入探讨其中一个具体的错误信息:Expression #1 of SELECT list is not in GROUP BY clause。 异常详情 Caused by: java.sql.SQLSyntaxErrorException: Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated...
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...
(To see where this clause fits, see SELECT statement) For example, GROUP BY <column name-or-expression>, where: the expression can be an aggregate; and, any column name used in the GROUP BY clause must also be in the SELECT statement. Additionally, a column that is not named in or ...