搜索结果
查询Tags标签: nonaggregated,共有 5条记录-
Mysql报错:1140 - In aggregated query without GROUP BY, expression #2 of SELECT list contains nonaggreg
经查阅资料得知, 在MySQL5.7版本之后对group by进行了优化。默认启动改进之后的版本启动了ONLY_FULL_GROUP_BY模式。 即ONLY_FULL_GROUP_BY是MySQL数据库提供的一个sql_mode,通过这个sql_mode来保证SQL语句“分组求最值”合法性的检查。这种模式采用了与Oracle、DB2等数…
2022/6/8 2:20:09 人评论 次浏览 -
解决MySQL报错:1 of ORDER BY clause is not in GROUP BY clause and contains nonaggregated column 'inf
解决MySQL报错:[Err] 1055 - Expression #1 of ORDER BY clause is not in GROUP BY clause and contains nonaggregated column informat一、问题描述 新安装的MySQL5.7.22 或 8.0.11,在 Navicat 上执行删除操作时,遇到报错: [Err] 1055 - Expression #1 of ORDER BY…
2021/10/11 19:14:23 人评论 次浏览 -
解决MySQL报错:1 of ORDER BY clause is not in GROUP BY clause and contains nonaggregated column 'inf
解决MySQL报错:[Err] 1055 - Expression #1 of ORDER BY clause is not in GROUP BY clause and contains nonaggregated column informat一、问题描述 新安装的MySQL5.7.22 或 8.0.11,在 Navicat 上执行删除操作时,遇到报错: [Err] 1055 - Expression #1 of ORDER BY…
2021/10/11 19:14:23 人评论 次浏览 -
[MySQL] group by 聚合函数的原理和聚合限制原因SELECT list is not in GROUP BY clause and contains nonaggregated colu
group by 的原理是 先把数据根据分组字段 , 分好组 , 然后再每个分组里面执行具体的聚合操作ONLY_FULL_GROUP_BY模式的限制是: SELECT list is not in GROUP BY clause and contains nonaggregated column select查询的列里面 , 有不是group by子句中的字段 , 有不是聚合…
2021/4/26 19:29:44 人评论 次浏览 -
mysql5.7报错: Expression #2 of SELECT list is not in GROUP BY clause and contains nonaggregated...
今天,公司新购买了云服务器,要部署测试环境,测试时发现开发环境没问题,但测试环境却报错了,打开日志分析错误原因,原来时mysql5.7版本的sql_model默认配置了ONLY_FULL_GROUP_BY的原因。完整错误日志如下: ### Error querying database. Cause: com.mysql.jdbc.exc…
2021/4/7 19:18:52 人评论 次浏览