在PostgreSQL中,当你尝试执行一个SQL查询时,如果SELECT子句中包含非聚合字段,而GROUP BY子句中未包含这些字段,就会遇到“pgsql must appear in the group by clause or be used in an aggregate function”的错误。这个错误表明你需要在GROUP BY子句中包括所有SELECT子句中的非聚合字段,或者使用聚合函数对这些字段进行...
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,按照错误提示修改即可获得我们想要的结果。 但,现在想聊两个问题: 1、聚合查询时,SELECT子句中能有什么内容?
sql语句SELECT cname, wmname, MAX(avg) FROM makerar GROUP BY cname; 同一个sql语句 在mysql中是可以正常执行的 但是在pgsql中会报错 代码语言:javascript 复制 ERROR:column"makerar.wmname"must appearintheGROUPBYclause or be usedinan aggregatefunctionLINE1:SELECTcname,wmname,MAX(avg)FROMmakerarGROUPB...
报错:character with byte sequence 0xe4 0x9e 0xab in encoding "UTF8" has no equivalent in encoding "GBK" 问题原因:表示UTF8编码的字符在目标GBK格式中无等价项。 解决方法:处理脏数据。 ERRCODE_GROUPING_ERROR 报错:column "xxx" must appear in the GROUP BY clause or be used in an aggregate fu...
解决方法:GROUP BY中避免非精确数据类型,如FLOAT等,建议使用精确的数据类型。 报错:CREATE TABLE is not supported for current instance 问题原因:当前实例是共享集群(实例Endpoint以hgmc开头,如hgmc-cn-xxwwwkkk,可前往Hologres管控台查看实例Endpoint)或者从实例,共享集群不支持创建内部表,只能创建外部表,从实例只能查...
分组错误,group by相关的错误。 column "xxx" must appear in the GROUP BY clause or be used in an aggregate function 重新检查SQL语法,聚合函数的字段需要包含在group by内。 ERRCODE_INVALID_TRANSACTION_STATE Usage Problem 非法的事务状态。涉及事务的相关操作非法。 比如CALL SET_TABLE_PROPERTY创建Distribut...
As a PostgreSQL user, you surely encounter many error messages when writing an SQL code. Sometimes they are quite unclear, but you won’t need an interpreter for this one: “must appear in the GROUP BY clause or be used in an aggregate function”. ...
phpstudy 搭建的项目: GROUP BY clause; this is incompatible with sql mode=only-full_group_by 问题如图: 方法一:直接修改数据库配置 首先,打开数据库,输入 1 select@@global.sql_mode; 这个时候,就会返回得到以下的信息:(不同电脑返回的信息可能不同)...
When we use the GROUP BY clause with a single column, all the rows in the table that have the same value in that particular column will be merged into a single record. Example In the following example we are grouping the above created CUSTOMERS table by the ADDRESS column and calculating ...
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...