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查询Tags标签: clause,共有 28条记录
  • sql计算前top n%的数据

    背景实际工作中经常遇见求top10或者top10%此类的需求,下面针对这些情况做一个小小的总结。实现代码先来说top n这种情况,这是比较常见的排序需求,使用窗口函数可以解决,常见的窗口函数见链接hive sql 专用窗口函数这其中细微的差别,使用的时候需要注意: -- 常见的分…

    2022/7/16 2:20:30 人评论 次浏览
  • Mysql 1055 - Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregate 报错解决方案

    报错信息:1055 - Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column ‘xxxx.xxxx.xxx’ which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by, Time:…

    2022/7/2 2:20:31 人评论 次浏览
  • sql写删除语句无法运行,报 You can't specify target table 'users' for update in FROM clause 错误的解决

    报错语句: delete from users where username in (select username from users where enabled = 0 )解决办法: 修改子查询,多嵌套一层 delete from users where username in (select * from (select username from users where enabled = 0) t )

    2022/4/24 19:13:21 人评论 次浏览
  • sql关键字exists与in的用法及区别

    子查询的表行数少的时候,用in合适 子查询的表行数多的时候,用exists合适如果子查询的表里存在null,in将不能进行比较,这种情况只能使用exists参考资料 SQL Exists vs. IN clause

    2022/4/21 19:12:57 人评论 次浏览
  • mysql错误:1093-You can’t specify target table for update in FROM clause的解决方法

    在做更新操作的时候,赋值操作用了子查询,这个时候Mysql就报了如标题的错误。 解决方法:子查询需要再包裹一层 把他当成一个新表 然后通过新表查询出来的值 来赋值。 Update frameworkdepartments SET ParentId=(SELECT id FROM (SELECT id FROM frameworkdepartments W…

    2022/3/21 19:28:22 人评论 次浏览
  • [Bug日记0003]mysql报错

    bug1 问题 [Err] 1055 - Expression #1 of ORDER BY clause is not in GROUP BY clause and contains nonaggregated column information_schema.PROFILING.SEQ which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=…

    2022/3/5 19:15:27 人评论 次浏览
  • MySQL 错误收集

    收集一下使用mysql时出现的错误,方便之后进行查找并解决问题。 MySQL错误收集 1055 - Expression #1 of ORDER BY clause is nt in GROUP BY clause and contains nonaggregated column ...1055 - Expression #1 of ORDER BY clause is nt in GROUP BY clause and contai…

    2022/2/4 19:23:36 人评论 次浏览
  • mysql 出现You can't specify target table for update in FROM clause错误的解决方法

    mysql出现You can’t specify target table for update in FROM clause 这个错误的意思是不能在同一个sql语句中,先select同一个表的某些值,然后再update这个表。 然后执行将每个用户第一条消息的内容更新为Hello World 因为在同一个sql语句中,先select出message表中每…

    2022/1/17 19:09:29 人评论 次浏览
  • mysql 出现You can't specify target table for update in FROM clause错误的解决方法

    mysql出现You can’t specify target table for update in FROM clause 这个错误的意思是不能在同一个sql语句中,先select同一个表的某些值,然后再update这个表。 然后执行将每个用户第一条消息的内容更新为Hello World 因为在同一个sql语句中,先select出message表中每…

    2022/1/17 19:09:29 人评论 次浏览
  • MySQL-Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggre

    Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column a_id which is not functionally dependent on columns in GROUP BY clause;this is incompatible with sql_mode=only_full_group_by解决方案先使用 SQL 查询select @@global…

    2021/12/10 2:17:34 人评论 次浏览
  • MySQL-Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggre

    Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column a_id which is not functionally dependent on columns in GROUP BY clause;this is incompatible with sql_mode=only_full_group_by解决方案先使用 SQL 查询select @@global…

    2021/12/10 2:17:34 人评论 次浏览
  • 迁移到RDS或者腾讯云MYSQL实例发生sql_mode=only_full_group_by错误的解决

    在本地测试正常,调整到RDS或者腾讯云数据库产品后,出现以下问题:2021-11-27 01:02:12,239000[catalina-exec-2]ERROR org.hibernate.engine.jdbc.spi.SqlExceptionHelper.logExceptions:142 - Expression #1 of SELECT list is not in GROUP BY clause and contains no…

    2021/11/27 2:10:05 人评论 次浏览
  • 迁移到RDS或者腾讯云MYSQL实例发生sql_mode=only_full_group_by错误的解决

    在本地测试正常,调整到RDS或者腾讯云数据库产品后,出现以下问题:2021-11-27 01:02:12,239000[catalina-exec-2]ERROR org.hibernate.engine.jdbc.spi.SqlExceptionHelper.logExceptions:142 - Expression #1 of SELECT list is not in GROUP BY clause and contains no…

    2021/11/27 2:10:05 人评论 次浏览
  • PostgreSQL子查询别名改造(兼容Oracle)

    在PostgreSQL中子查询必须得加上别名,即使我们在其它地方不会再引用到这个别名。 否则便会报以下错误: postgres=# select * from (select * from t1 limit 5); ERROR: subquery in FROM must have an alias LINE 1: select * from (select * from t1 limit 5);^ HINT:…

    2021/10/28 2:10:00 人评论 次浏览
  • PostgreSQL子查询别名改造(兼容Oracle)

    在PostgreSQL中子查询必须得加上别名,即使我们在其它地方不会再引用到这个别名。 否则便会报以下错误: postgres=# select * from (select * from t1 limit 5); ERROR: subquery in FROM must have an alias LINE 1: select * from (select * from t1 limit 5);^ HINT:…

    2021/10/28 2:10:00 人评论 次浏览
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